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General

Initial results suggested that some CPUs were not running at the specified MHz. This can be confirmed with a new program. See Measure CPU MHz. Tablet T11 has a Cortex-A15 CPU, rated at 2000 MHz, but only runs at 1700 MHz. This was further confirmed by the following text file that shows milliseconds used at different frequencies. Although 2 GHz appears to be used occasionally, the count did not increase after running several benchmarks.

Java Whetstone Benchmark

The first of this series is a Java version of the Whetstone Benchmark. The original, written in Fortran, was the first general purpose benchmark that set industry standards of computer performance. It was released in 1972, based on research by Brian Wichmann, and produced by Harold Curnow. Later updates became my responsibility. The three of us were UK Government employees. Speed was measured in terms of Million Whetstone Instructions Per Second (MWIPS). Later, in order to identify compiler over-optimisation, speeds of individual tests were shown as MOPS or MFLOPS - Millions of Operations or Floating Point Operations Per Second. In this version, test functions are for a minimum of one second, milliseconds for the originally defined pass count being used for MWIPS calculations, as 10,000 / Total milliseconds.

This compilation celebrates the 40th anniversary of the benchmark. The .apk application file can be downloaded from www.roylongbottom.org.uk/Java Whetstone.apk. See also Whetstone Benchmark History and Results for performance of computers from the 1960’s to modern times, and Whetstone Benchmark Results on PCs, these including speeds using Java code via Windows and Linux.

Java Whetstone Operation

Installation Click on the link for the apk file and download for the icon to appear in a Download list or in a Download folder on an SD card. In Settings, Applications, tick allow installation of non-Market applications. Tap the app icon and buttons to install and run it.

On loading the app, three buttons are provided. Run executes the benchmark and this normally takes between 10 and 20 seconds. The results shown below, up to Total Elapsed Time, are then displayed. The Info button produces three more buttons to provide a summary of the benchmark, a link to this HTML document and another to the History HTML pages. If the benchmark has been run, Save Emails the full results shown below to results@roylongbottom.org.uk (assuming that local Email has been set up). Note that the Email system might not display the results with a monospaced font, but the space characters appear to be there, allowing copying/pasting to a document with the right font (like Courier New 10).

Java Whetstone Results

The first measurements obtained were via emulators running on a 3 GHz quad core Phenom, the benchmark only using one core, of course. They suggest a slightly slower performance using a screen with a higher pixel density and much better performance with a later Android version and/or a more modern CPU.

Based on comparisons with CPU MHz, v7-A8 CPUs are faster than the ARM 926EJ CPU, due to VFPv3 enhanced floating point hardware, and in turn, v7-A9s are even faster. Performance of P8, with the Qualcomm MSM8960 CPU, is superior to these ARM devices. Some of the v7-A9 resulrs are not proportional to CPU MHz, where calculations suggest that that 1300 MHz T7 and 1500 MHz T4 are running at 1200 MHz. This was confirmed later, using a new program. See Measure CPU MHz.

Java Numeric Results

Native Whetstone Benchmark

The second Android benchmark uses the same Java front end code as #1, producing identical output format, but headed “Android Native Whetstone Benchmark”, with the C/C++ program using Java Native Interface and saved in a jni folder (see zip file).

The C code does not produce any output (in this case?), except returning results to the Java program in a string. The code is compiled into a library, through an Android.mk file, in my case via a Terminal command ~/workspace/NativeWhetstone/jni$ ~/Eclipse/android-ndk-r7/ndk-build. The Java program includes a function to load the library.

Unexpectedly, the first compilation produced slower performance than a Java version - See T2 above and T2 @5 below. The solution was a new Application.mk file in the jni folder. This has a single directive (APP_ABI := armeabi armeabi-v7a) to build two libraries, one for older ARM5 CPUs and one for ARM7 with vfpv3 high performance floating point units, these being automatically selected at run time. As can be seen for T2 @7 below, a remarkable performance improvement was produced.

The .apk application file can be downloaded from www.roylongbottom.org.uk/NativeWhetstone.apk. See also Whetstone Benchmark History and Results for performance of computers from the 1960’s to modern times, and Whetstone Benchmark Results on PCs, these including speeds via Windows and Linux.

Native Whetstone Benchmark Results

For these tests, the emulator was run using one CPU of a 2.4 GHz Core 2 Duo. Again, this showed a performance gain emulating v7-A, with a further improvement using instructions for a vfpv3 FPU. Unlike tablet T2, results on tablet T1, with the 926EJ CPU, show that the first compilation produces the same performance as the second, The latter includes a library for vfpv3 instructions that are clearly not used.

As with Java Whetstone results, T4 and T7, v7-A9 CPUs, appear to be running slow at 1200 MHz, with T2, T6 and P11 running at the specified clock speed. This time, the Qualcomm CPU is not particularly faster.

Benchmarks run on T4, under Android 4, have a Development CPU Mode Setting of Performance, where continuously running at the maximum MHz could be expected. With a Normal Setting, performance can vary widely, as reflected below.

August 2013 - Compared with T7, the results show that T11, with the Cortex-A15, performs badly, on a per MHz basis, like 10% slower, although it obtains some of the best scores for ARM CPUs. The clock speed was confirmed, whilst running the benchmark, using the program that measures CPU MHz.

Linpack 100 Benchmark

The Linpack Benchmark was produced from the "LINPACK" package of linear algebra routines. It became the primary benchmark for scientific applications, particularly under Unix, from the mid 1980's, with a slant towards supercomputer performance. The original double precision C version, used here, operates on 100x100 matrices. Performance is governed by an inner loop in function daxpy() with a linked triad dy[i] = dy[i] + da * dx[i], and is measured in Millions of Floating Point Operations Per Second (MFLOPS). Two versions use a Java front end, again providing Run, Info and Save buttons, with the main C code compiled by Android Native Development Kit. A third comprises the same front end with Java code for Linpack calculations. They are Linpackv5.apk (LP5), using old, slow instructions, Linpackv7.apk (LPK) to use faster vfpv3 hardware and LinpackJava.apk (LPJ) that depends on a suitable Runtime Environment. A fourth variety, LinpackSP.apk (LPsp) is also available, comprising the C version compiled to use single precision floating point. The .apk application files can be downloaded from:

Further details of the Linpack benchmark, and results from Windows and Linux based PCs, can be found in Linpack Results.htm. The Java version has the same calibration calculations as my C program but the uses the Code from Netlib for the calculations, as C uses different function calling conventions.

Linpack Benchmark Results

MFLOPS results for the four Android versions are provided below. Also shown are those for PCs, compiled for Windows and Linux, the benchmarks being downloadable via Linpack Results.htm. Java results for PCs were from using Linpack Java Applet from Netlib and Android x86.

The most popular Android Linpack benchmark appears to be from GreeneComputing. This is a Java variety and produces similar performance ratings to my LinpackJava on T1 and T2 as quoted below. The former also has a multi-processor test but it is not clear whether it uses multiple threads on a single program, or multiple copies of the program, where results and not really representative for comparing with published MP speeds.

Using compiled C programs a Cortex-A9 can be nearly as fast as an Atom running at the same MHz, but this is not the case with Java. Unlike Intel, it seems that the double precision version can be much slower than using single precision calculations.

The T4 and T7 v7-A9 CPUs again appear to be slow at 1200 MHz but T2, T6 and P11 seem to be at full speed. The Qualcomm CPU performs well on this benchmark.

August 2013 - Tablet T11, with the Cortex-A15 CPU, runs at 2.5 times the speed of an A9 processor of the same MHz (if one existed), using the most recent floating point instructions. Linpack benchmark results are often quoted for ARM based systems, probably a design consideration.

Dhrystone 2 Benchmark

The Dhrystone "C" benchmark provides a measure of integer performance (no floating point instructions). It became the key standard benchmark from 1984, with the growth of Unix systems. The first version was produced by Reinhold P. Weicker in ADA and translated to "C" by Rick Richardson. Two versions are available - Dhrystone versions 1.1 and 2.1. The second version, used here, was produced to avoid over-optimisation problems encountered with version 1, but some is still possible. Because of this, optimised and non-optimised compilations are provided. Speed was originally measured in Dhrystones per second. This was later changed to VAX MIPS by dividing Dhrystones per second by 1757, the DEC VAX 11/780 result, the latter being regarded as the first 1 MIPS minicomputer.

The optimised .apk app file (DS2) can be downloaded from www.roylongbottom.org.uk/Dhrystone2.apk and the non-optimised one (DSN) from www.roylongbottom.org.uk/Dhry2Nopt.apk. Further details of the Dhrystone benchmark, and results from Windows and Linux based PCs, can be found in Dhrystone Results.htm.

Dhrystone 2 Benchmark Results

Unlike when using floating point, on this benchmark, the Cortex-A9 CPU is less than three times faster than the 926EJ on all measurements, a ratio similar to that provided by the BogoMIPS results, shown in System Information. Measurements for Intel Atom and Core 2 CPUs are also provided for Windows (Watcom 32 Bit) and Linux (GCC 32 Bit and 64 Bit) compilations. Core 2 results show considerable variations, highlighting the Danger, in comparing results from different compilers. In this case, the significant difference is between 32 and 64 bit compilations under Linux, where far more registers are available for optimisation at 64 bits. On using them, the compiler might decide that multiple passes are not needed and remove repetitive calculations. Also, historically, computer manufacturers are known to have optimised their own compilers to inflate speeds of standard benchmarks.

Here, the optimised benchmark produces up to 1.4 Vax MIPS/MHz for the Cortex-A9. ARM, themselves, quote 2.5 Vax MIPS (DMIPS) per MHz for the same processor, probably just another different compiler variation.

Note the speed on tablet T5. This uses a MIPS CPU and requires an emulator to execute compiled ARM processor instructions. T5a results are for an identical tablet, from a different user, but with no details of settings used. The T4 and T7 v7-A9 CPUs again appear to be slow at 1200 MHz but T2 and P11 seem to be at full speed.

August 2013 - Tablet T11, with the Cortex-A15, is 30% to 40% faster than would be expected from the last generation of ARM processors.

Livermore Loops Benchmark

For Cray 1 comparison purposes, it is more appropriate to use Cray 1S results, as these are from running all 24 kernels. See below for best results so far, currently T4 using one of the two 1500 MHz cores, where performance equates to 15.5 times a Cray 1. Cost of this tablet was $130, in May 2012. Cray 1 was $7M.

The benchmark execution file can be downloaded from www.roylongbottom.org.uk/LivermoreLoops.apk. Further details of the Livermore Loops benchmark, and results from Windows and Linux based PCs, can be found in Livermore Loops Results.htm.

Livermore Loops Benchmark Results

System T2, with the high speed vfpv3 hardware, is again shown to be around 20 times faster than the tablet T1, on these floating point calculations. Relative to CPU MHz, T2 performs better than v7-A9 CPUs T4 and T7 and P8 Qualcomm, but P11 outshines them all. This benchmark has some L2 cache speed dependency. This cache is shown to be particularly fast on later benchmarks.

August 2013 - again, it is pointed out that tablet T11, with the Cortex-A15, is really running at 1700 MHz (not 2000), and some Cortex-A9s, used for comparison, are at 1200 MHz. This A15 is the first ARM processor to demonstrate more than 1 GFLOPS, on this benchmark. On a per MHz basis, the results demonstrate a wide range of relativity to A9s, varying from slighly slower to 3.4 times faster, the official average showing an improvement of 50%. Then, the system is also running at a higher MHz.

MemSpeed Benchmark

This benchmark measures data reading speeds in MegaBytes per second carrying out calculations on arrays of cache and RAM data, sized 2 x 8 KB to 2 x 32 MB. Calculations are x[m]=x[m]+s*y[m] and x[m]=x[m]+y[m], using double and single precision floating point and x[m]=x[m]+s+y[m] and x[m]=x[m]+y[m] with integers. Million Floating Point Operations Per Second (MFLOPS) speed can be calculated by dividing double precision MB/second by 8 and 16, for the two tests, and single precision speeds by 4 and 8. Assembly listings for integer tests show that Millions of Instructions Per Second (MIPS) can be found by multiplying MB/second by 0.78 with 2 adds and 0.66 for the other test. Cache sizes are indicated by varying performance as memory usage changes.

Results below show maximum MFLOPS and MIPS speeds. The first integer test loop has 25 assembler type instructions, comprising 8 loads (x 4 bytes), 11 adds (8 data, 2 addresses, 1 loop increment), 4 stores, 1 compare, 1 branch), or an instructions/bytes ratio of 0.78125. Best Cortex-A9 MIPS/MHz ratio is 1.59.

Using L1 cache data, performance differences on Cortex CPUs are similar to the benchmarks above. In the case of the Qualcomm Snapdragon, floating point tests are significantly faster, relative to CPU MHz, but a little slower using integers. Other than comparisons with the Snapdragon CPU, P11, the Galaxy SIII, provides a significant performance gain using L2 cache. This might be due to the claimed use of 128-bit internal buses, instead of 64-bit. The most outstanding results for P11 are using memory, typically three times faster than other A9s, and these might be aided by the L2 cache arrangement. P11 is said to have dual channel memory and, although not always stated, others have a single channel (see Memory and Bus Speed Calculations below).

August 2013 - T11, with the Cortex-A15, provides the fastest speeds reported here. Again, more than 1 GFLOPS is demonstrated, but this time with single precision calculations. Compared with P11, the last leader, and adjusting to compare at the same clock speed, memory speeds are similar, but the T11 is 2 to 3 times faster on double precision calculations, 3 to 4 times at single precision and 1.5 to twice as fast with integers. This A15 obtains 1.8 MIPS/MHz.

Memory and Bus Speed Calculations

Some assumptions regarding memory and bus speeds are aired here, based on knowledge provided for mainstream PCs, Google searches and results below. Whereas PC memory bus width is 8 bytes (per channel), that for these ARM systems is 4 bytes or less, considerably reducing relative maximum memory data transfer speeds.

As with PCs, data is read in bursts and this is normally clear from BusSpeed results, from which maximum data transfer speeds can be estimated. Suggested burst size for System T1 is 8 words or 32 bytes with maximum speed of 29 x 8 or 232 MB/second. For T2 and T4, 16 byte bursts are suggested with maximum speed between 35 x 16 to 39 x 16 or 560 to 624 MB/second. One reason for not achieving this performance is startup delays (CAS Latency - number of bus clocks).

It seems to be extremely difficult to obtain details of bus speeds and channel/bus configurations for Android devices. T7 appears to have single channel, double data rate 1333 MHz RAM, where maximum speed would be 666.7 (clock MHz) x 2 (DDR) x 4 (32 bit wide bus) = 5.33 GB/second. Then P11, with dual channel, DDR 1066 MHz RAM, could produce 533 x 2 x 2 (channels) x 4 = 8.53 GB/second. Speed estimated from burst tests and real measurements are nowhere near these maximum speeds but can be much faster using the MultiThreading Benchmark version.

There are startup delays on transferring bursts of data, usually associated with the number of bus clocks under the heading of CAS Latency. With DDR, a one clock overhead can reduce data transfer rate by 33%. Measured maximum speed reading all data can also be much lower than that derived from burst reading tests, due to various internal processor delays. For examples see the AndI 2Reg and AndI 1Reg) in BusSpd2K Memory Speed Results.

BusSpeed Benchmark

This benchmark is designed to identify reading data in bursts over buses. The program starts by reading a word (4 bytes) with an address increment of 32 words (128 bytes) before reading another word. The increment is reduced by half on successive tests, until all data is read. On reading data from RAM, 64 Byte bursts are typically used. Then, measured reading speed reduces from a maximum, when all data is read, to a minimum on using 16 word increments (64 bytes). Potential maximum speed can be estimated by multiplying this minimum value by 16. With this burst rate, measured speed at 32 word and 16 word increments are likely to be the same. Cache sizes are indicated by varying speed as memory use changes. Note, with smallest L1 cache demands, measured speed can be low due to overheads when reading little data.

The program C source code is as used for Linux, See BusSpd2K Results.htm. This has unrolled loops with up to 64 AND statements (& array[i ] to & array[i+63]). The Linux compiler for Intel CPUs translates this into 64 assembly instructions ANDing data from indexed memory locations. In this case, Integer MIPS approximately equals MB/second divided by 4. The Android NDK compiler generates 133 assembler type instructions, including 64 loads and 64 ANDs, where MIPS equates to MB/second divided by 1.92 (64 x 4 / 133) - twice as many instructions as Intel. Maximum MIPS and MIPS/MHz details have been added to the results below.

With data from L1 cache, tablets T4 and T7 again produce lower performance than might be expected, compared with CPU MHz with T6 better, compared with P11. The Qualcomm Snapdragon results are also on the low side, and it appears to have burst reading from L1 cache, with much lower data transfer speeds with the highest incremented addressing. As with MemSpeed, the upgraded Cortex-A9 CPU in P11 provides significant performance gains using L2 cache and RAM. Unlike using L1 cache, the Qualcomm CPU provides superior performance at high address increments.

August 2013 - T11, with the EXYNOS running at 1700 MHz, produces the best integer performance so far, or a maximum of 3224 MIPS or 1.9 MIPS per MHz. This can be compared with P11 Cortex-A9 at 1400 MHz, that reaches 2205 MIPS or 1.6 MIPS per MHz. T11’s L2 cache is even more efficient at twice the speed of P11, after adjusting for the same CPU MHz.

Randmem Benchmark

RandMem benchmark carries out four tests at increasing data sizes to produce data transfer speeds in MBytes Per Second from caches and memory. Serial and random address selections are employed, using the same program structure, with read and read/write tests using 32 bit integers. The main purpose is to demonstrate how much slower performance can be through using random access. Here, speed can be considerably influenced by reading and writing in bursts, where much of the data is not used, and by the size of preceding caches.

The results below show that random access performance is approximately the same as BusSpeed with address increments of 32 words, the burst reading effect. This program is again based on indexed memory addressing where the older technology CPU can be faster than than the System T2. This might be due to poor implementation of the memory bus interface on this tablet, as noted on PC tests. Atom results are provided, again showing better relative performance, particularly when using data from RAM. As with BusSpeed, and not noticed so far on the other benchmarks, measured speeds using L1 cache are sometimes slow to start with.

Relative performance of Cortex CPUs is similar to the other memory tests. The Qualcomm Snapdragon performs very well on random access to L2 cache and RAM, repeating the effects of faster burst reading speed seen in BusSpeed.

August 2013 - Cortex-A15 based T11 again come out fastest at this time. Best comparative performance is for data using L2 cache, particularly with serial reading. where RAM speed comparisons are also good.

System T1, ARM 926EJ 800 MHz, Android 2.2 Android RandMem Benchmark 20-Feb-2012 16.51 MBytes/Second transferring 4 Byte Words Memory Serial....... Random....... KBytes Read Rd/Wrt Read Rd/Wrt 16 841 1119 666 955 32 222 147 83 62 64 145 169 56 53 128 198 181 48 57 256 191 178 44 58 512 196 180 27 32 1024 189 180 22 26 4096 193 181 19 23 16384 195 177 19 22 65536 186 166 19 22 Total Elapsed Time 49.0 seconds System T2, ARM Cortex-A9 800 MHz, Android 2.3.4 Android RandMem Benchmark 20-Feb-2012 16.45 MBytes/Second transferring 4 Byte Words Memory Serial....... Random....... KBytes Read Rd/Wrt Read Rd/Wrt 16 1777 1879 1669 1809 32 1359 1394 1185 1505 64 799 861 621 755 128 394 202 295 333 256 147 146 92 104 512 133 136 71 42 1024 125 125 53 62 4096 129 98 41 53 16384 128 113 42 45 65536 121 115 30 32 Total Elapsed Time 15.7 seconds System T4, ARM Cortex-A9 1500 MHz, Android 4.0.3 Measured 1200 MHz Android RandMem Benchmark 11-May-2012 17.19 MBytes/Second Transferring 4 Byte Words Memory Serial....... Random....... KBytes Read Rd/Wrt Read Rd/Wrt 16 2777 3014 2671 3021 L1 32 2254 2490 2062 2561 64 872 1109 875 998 L2 128 797 870 674 721 256 807 932 528 560 512 543 465 186 182 1024 388 241 78 83 RAM 4096 367 229 56 48 16384 366 229 48 45 65536 335 228 41 38 Total Elapsed Time 13.2 seconds T7, ARM Cortex-A9 1300 MHz, Android 4.1.2, Measured 1200 MHz Android RandMem Benchmark 20-Oct-2012 11.14 MBytes/Second Transferring 4 Byte Words Memory Serial....... Random....... KBytes Read Rd/Wrt Read Rd/Wrt 16 2788 3041 2795 3041 L1 32 2769 3011 2767 3020 64 1027 1038 839 911 L2 128 916 918 616 649 256 904 905 514 538 512 899 907 475 499 1024 712 699 345 354 4096 323 284 92 88 RAM 16384 316 282 73 70 65536 314 281 65 62 Total Elapsed Time 10.9 seconds T6, ARM Cortex-A9 1600 MHz, Android 4.0.3, DDR3 RAM Android RandMem Benchmark 26-Aug-2012 13.58 MBytes/Second Transferring 4 Byte Words Memory Serial....... Random....... KBytes Read Rd/Wrt Read Rd/Wrt 16 3925 4257 3881 4275 L1 32 3867 4204 3864 3998 64 1276 1284 1042 1182 L2 128 1126 1133 775 844 256 1118 1121 641 706 512 1107 1113 584 655 1024 750 715 352 366 4096 362 314 103 97 RAM 16384 337 317 84 79 65536 369 317 75 71 Total Elapsed Time 10.3 seconds T8 Allwinner A13-MID, 1 GHz ARM Cortex-A8 Android RandMem Benchmark 1.1 05-Mar-2013 10.03 MBytes/Second Transferring 4 Byte Words Memory Serial....... Random....... KBytes Read Rd/Wrt Read Rd/Wrt 16 2032 2787 2057 2802 L1 32 2014 2736 1972 2668 64 458 309 92 141 L2 128 423 316 74 121 256 304 204 39 58 RAM 512 270 201 29 36 1024 267 192 27 39 4096 258 197 23 35 16384 247 206 22 34 65536 254 206 19 28 Total Elapsed Time 20.7 seconds T11 Samsung EXYNOS 5250 2.0 GHz Cortex-A15, Android 4.2.2 Measured 1.7 GHz Android RandMem Benchmark 1.1 13-Aug-2013 17.29 MBytes/Second Transferring 4 Byte Words Memory Serial....... Random....... KBytes Read Rd/Wrt Read Rd/Wrt 16 2881 2478 3388 3650 32 4301 2968 3197 3249 64 3669 2511 2201 2249 128 3566 2560 1571 1566 256 3557 2461 1334 1256 512 3524 2547 1136 1098 1024 1933 1144 534 513 4096 1993 1064 184 173 16384 1970 1086 141 144 65536 1973 1117 106 104 Total Elapsed Time 9.1 seconds P11, ARM Cortex-A9 1.4 GHz, Android 4.0.4 Android RandMem Benchmark 23-Dec-2012 15.18 MBytes/Second Transferring 4 Byte Words Memory Serial....... Random....... KBytes Read Rd/Wrt Read Rd/Wrt 16 3253 3542 3255 3438 L1 32 2626 2794 2511 2945 64 1453 1471 1298 1467 L2 128 1298 1302 1030 1095 256 1279 1289 819 826 512 1054 1075 237 245 1024 1155 989 150 146 4096 1101 919 107 106 RAM 16384 1061 911 91 90 65536 1048 919 73 77 Total Elapsed Time 10.7 seconds P10 Qualcomm Snapdragon, 1.5 GHz, Android 4.0.3, DDR2 Android RandMem Benchmark 25-Sep-2012 09.02 MBytes/Second Transferring 4 Byte Words Memory Serial....... Random....... KBytes Read Rd/Wrt Read Rd/Wrt 16 1878 3732 2564 3081 L1 32 1545 1796 1258 1487 L2 64 1472 1797 1030 1205 128 1502 1769 869 1084 256 1548 1786 795 938 512 1323 1264 604 798 1024 745 697 230 268 4096 425 457 149 145 RAM 16384 481 458 120 130 65536 501 458 100 106 Total Elapsed Time 10.2 seconds Atom 1666 MHz, DDR2 RAM 800 MHz, Linux 16 3976 5132 4100 5134 64 3086 3215 1042 1349 65536 2708 1290 49 74

The benchmark can be downloaded from the links DriveSpeed and DriveSpeed2. Below are examples of results. These include the usual configuration details (see above). Drive capacity and paths used for later example results are also provided.

Results Android DriveSpeed2 Benchmark 1.0 29-Aug-2013 12.36 Data Not Cached MBytes/Second MB Write1 Write2 Write3 Read1 Read2 Read3 8 5.1 5.1 5.2 22.5 22.9 22.9 16 4.6 4.9 5.2 22.8 22.8 15.3 Cached 8 116.5 1.2 15.9 123.4 209.7 129.1 Random Write Read From MB 4 8 16 4 8 16 msecs 2.27 2.34 2.95 0.01 0.01 0.02 200 Files Write Read Delete File KB 4 8 16 4 8 16 secs MB/sec 0.40 0.80 1.12 5.22 7.09 11.46 msecs 10.28 10.25 14.60 0.79 1.15 1.43 0.161 Total Elapsed Time 64.1 seconds File Path Used - /mnt/flash/ Drive MB 2740 Free 2629 File Paths and Drive Capacity System See Android Drive MB Free Path T1 2.2 External SD SD1 3897 3897 /sdcard/ T2 2.3.4 External SD SD2 15185 9393 /mnt/sdcard/ T4 4.0.3 External SD SD3 15258 14906 /mnt/sdcard/external_sdcard/ T11 4.2.2 External SD SD3 15258 14906 /mnt/extsd/ T11 4.2.2 USB SD SD3 15258 14906 /mnt/udisk/ T11 4.2.2 USB3 SD SD3 15258 14906 /mnt/udisk/ T2 2.3.4 USB SD SD4 15185 13869 /mnt/sdb/sdb1/ T11 4.2.2 External SD SD4 15185 13869 /mnt/extsd/ T11 4.2.2 USB SD SD4 15185 13869 /mnt/udisk/ T11 4.2.2 USB3 SD SD4 15185 13869 /mnt/udisk/ T1 2.2 Internal Drive ID1 1602 1459 /data/data/com.drivespeed2/ T2 2.3.4 Internal Drive ID2 702 492 /data/data/com.drivespeed2/ T2 2.3.4 Internal SD SDI2 2740 2629 /mnt/flash/ T4 4.0.3 Internal Drive ID4 802 689 /data/data/com.drivespeed2/files/ T4 4.0.3 Internal SD SDI4 13857 13682 /mnt/sdcard/ T7 4.3 Internal SD SDI7b 13676 12988 /storage/emulated/0/ T7 4.3 Internal Drive SDI7a 13676 12988 /data/data/com.drivespeed2/ T7 4.3 Internal Drive SDI7b 13676 12988 /mnt/sdcard/ T11 4.2.2 Internal SD SDI11 12757 9788 /sdcard/ T11 4.2.2 Internal Drive ID11 984 680 /data/data/com.drivespeed2/ T1 2.2 USB stick USBS1 7688 7029 /udisk/ T2 2.3.4 USB stick USBS1 7688 7019 /mnt/sda/sda1/ T4 4.0.3 USB stick USBS1 7688 7019 /mnt/sda1/ T11 4.2.2 USB stick USBS1 7688 7036 /mnt/udisk/ S3 is a Class 10 card with minimum 24 MB/second reading and 10 MB/second writing. S4 is a Class 10 card at up to 95 MB/second reading and 90 MB/second writing. Other cards are Class 4

Random Access - As shown in Linux Results, random writing speeds can be subject to extremely wide variations on flash drives, and random reading times can be less than on disk drives that are subject to rotational delays. Disk random reading speeds can be faster on small files, as the data is cached in a buffer.

Large Files MB/sec 16 MB Files, ## 8 MB Write1 Write2 Write3 Read1 Read2 Read3 T1 Ext SD1 3.4 4.2 4.2 8.7 8.7 8.3 T2 Ext SD2 3.4 3.4 3.4 7.6 7.5 7.5 T4 Ext SD3 5.6 6.3 6.3 10.5 10.7 10.8 T11 Ext SD3 5.4 8.3 8.7 20.7 20.6 20.7 T11 USB2 SD3 5.6 8.1 8.1 16.8 16.8 16.9 T11 USB3 SD3 7.1 8.6 8.3 17.2 17.2 17.5 T2 USB2 SD4 11.6 11.7 11.9 28.9 30.2 29.9 T11 Ext SD4 12.0 11.6 11.4 21.7 21.8 21.9 T11 USB2 SD4 14.0 17.7 18.5 25.9 26.1 25.9 T11 USB3 SD4 18.2 24.8 25.2 59.0 36.1 36.9 T1 USB2 USBS1 1.1 1.1 0.9 8.5 4.4 8.3 T2 USB2 USBS1 2.6 2.6 3.1 11.5 12.1 11.0 T4 USB2 USBS1 2.3 2.6 2.3 8.3 9.6 9.5 T11 USB2 USBS1 2.8 3.0 3.0 11.8 12.5 12.4 T2 Int SDI2 4.6 4.9 5.2 22.8 22.8 15.3 T4 Int SDI4 10.7 11.1 11.2 24.7 24.9 23.7 T11 Int SDI11 8.9 16.6 20.0 51.0 49.1 53.7 T1 cached ID1 ## 3.4 3.5 3.5 167.4 165.1 162.9 T1 cached ID1 3.4 3.4 3.3 8.2 8 8.2 T2 cached ID2 4.0 4.0 4.0 316.6 294.3 316.6 T4 cached ID4 109.3 124.4 16.6 227.5 213.8 236.2 T7 cached SDI7a 217.8 74.2 15.3 326.4 434.2 394.9 T7 cached SDI7b 60.6 53.3 14.4 95.7 92.4 86.0 T11 cached ID11 206.4 188.6 130.3 757.6 775.4 752 Random Access milliseconds Random Write Read From MB 4 8 16 4 8 16 T1 Ext SD1 58.32 22.08 196.90 0.10 0.26 1.28 T2 Ext SD2 3.80 23.62 20.08 0.04 0.03 0.93 T4 Ext SD3 8.79 12.64 6.00 0.04 0.04 0.57 T11 Ext SD3 4.53 21.43 8.45 0.01 0.01 0.59 T11 USB2 SD3 8.35 4.25 20.65 0.02 0.03 0.77 T11 USB3 SD3 8.34 22.46 5.76 0.02 0.02 0.74 T2 USB2 SD4 2.40 5.02 3.28 0.01 0.01 0.03 T11 Ext SD4 3.50 3.34 2.69 0.01 0.01 0.48 T11 USB2 SD4 2.93 2.90 3.34 0.01 0.01 0.44 T11 USB3 SD4 3.49 2.60 2.03 0.01 0.01 0.05 T1 USB2 USBS1 361.65 389.22 384.42 1.14 0.07 1.06 T2 USB2 USBS1 36.26 208.72 344.72 0.03 49.56 1.16 T4 USB2 USBS1 53.51 112.59 316.58 3.39 1.69 0.92 T11 USB2 USBS1 29.41 206.32 220.73 0.02 50.90 1.20 T2 Int SDI2 2.27 2.34 2.95 0.01 0.01 0.02 T4 Int SDI4 2.60 2.97 2.95 0.01 0.01 0.27 T7 cached SDI7 T11 Int SDI11 2.05 2.5 1.92 0.01 0.01 0.01 T1 cached ID1 5.60 5.72 5.90 0.05 0.03 0.06 T2 cached ID2 3.10 3.09 3.03 0.01 0.01 0.01 T4 cached ID4 2.71 2.72 5.21 0.01 0.01 0.01 T7 cached SDI7a 2.22 4.16 2.01 0.00 0.00 0.00 T7 cached SDI7b 1.90 2.23 4.58 0.01 0.01 0.01 T11 cached ID11 1.91 2.53 3.14 0.00 0.00 0.00 Small Files milliseconds 200 Files Write Read Delete File KB 4 8 16 4 8 16 secs T1 Ext SD1 47.06 33.10 41.39 1.80 2.48 3.31 0.852 T2 Ext SD2 23.33 29.48 35.71 1.13 1.65 2.81 0.962 T4 Ext SD3 29.69 47.67 36.08 1.48 3.39 3.38 1.439 T11 Ext SD3 32.55 32.24 33.47 1.61 1.82 2.39 1.750 T11 USB2 SD3 24.09 28.96 33.17 1.94 2.19 2.60 0.926 T11 USB3 SD3 25.69 35.26 33.95 1.91 2.15 2.58 0.926 T2 USB2 SD4 16.13 16.18 21.95 1.32 1.38 1.73 0.318 T11 Ext SD4 15.83 11.65 18.91 0.91 1.26 1.93 0.461 T11 USB2 SD4 12.71 11.04 15.27 1.30 1.45 1.75 0.278 T11 USB3 SD4 10.33 11.42 15.86 1.25 0.71 1.14 0.401 T1 USB2 USBS1 Timeout T2 USB2 USBS1 42.31 29.23 29.92 2.63 2.92 2.98 1.594 T4 USB2 USBS1 53.71 30.00 34.22 2.57 4.33 5.38 1.845 T11 USB2 USBS1 35.85 23.11 25.17 2.59 2.93 3.61 1.242 T2 Int SDI2 10.28 10.25 14.60 0.79 1.15 1.43 0.161 T4 Int SDI4 1.29 4.62 5.40 0.16 0.56 0.92 0.075 T7 cached SDI7 T11 Int SDI11 11.10 12.90 14.40 0.62 0.94 1.38 0.450 T1 cached ID1 10.63 10.48 12.86 0.11 0.17 0.27 1.778 T2 cached ID2 28.09 22.13 12.91 0.03 0.05 0.08 5.324 T4 cached ID4 0.09 0.98 1.60 0.03 0.40 0.35 0.137 T7 cached SDI7a 0.13 0.32 0.40 0.03 0.06 0.10 0.028 T7 cached SDI7b 0.97 1.14 1.04 0.33 0.37 0.35 0.079 T11 cached ID11 0.11 0.19 0.28 0.02 0.03 0.04 0.018

Following shows results, measuring MHz whilst running MemSpeed Benchmark, whose results were proportional to MHz. For comparative benchmarking, running continuously at maximum MHz is desirable.

################################################## T11 Samsung EXYNOS 5250 2.0 GHz Cortex-A15, Android 4.2.2 Energy Saving Off MemSpeed Total Elapsed Time 10.9 seconds Android Java CPU MHz 13-Aug-2013 16:55:50 0.00 1000 1.02 1000 2.08 1000 3.11 1000 4.16 1000 5.18 1000 6.24 1000 7.29 1000 8.32 1700 9.34 1200 10.35 1700 11.36 1700 12.38 1700 13.40 1700 14.42 1700 15.45 1700 16.48 1700 17.50 1700 18.54 1000 19.59 1000 20.64 1000 21.67 1000 22.72 1000 23.76 1000 24.82 1000 25.87 1000 26.93 1000 27.98 1000 29.04 1000 30.08 1000 Running Finished 13-Aug-2013 16:56:22 Energy Saving On MemSpeed Total Elapsed Time 11.9 seconds Android Java CPU MHz 14-Aug-2013 11:12:55 0.00 1000 1.02 1000 2.05 1000 3.08 1000 4.11 1000 5.14 1000 6.20 1000 7.23 1000 8.24 1000 9.26 1000 10.28 1000 11.30 1000 12.32 1000 13.34 1000 14.36 1000 15.40 1000 16.43 1000 17.46 1000 18.49 1000 19.52 1000 20.56 1000 21.59 1000 22.62 1000 23.65 200 24.72 1000 25.76 1000 26.80 1000 27.83 1000 28.89 1000 29.92 1000 Running Finished 14-Aug-2013 11:13:26 ################################################## T7 ARM Cortex-A9 1300 MHz, Android 4.1.2 Battery Power MemSpeed Total Elapsed Time 11.7 seconds Android Java CPU MHz 14-Aug-2013 09:11:23 0.00 1000 1.03 475 2.06 760 3.09 1300 4.13 1300 5.17 1300 6.31 640 7.34 1200 8.36 1200 9.37 1200 10.39 1200 11.40 1200 12.42 1200 13.43 1200 14.45 1200 15.47 1200 16.49 1200 17.51 1200 18.53 1200 19.57 1000 20.60 760 21.62 1200 22.66 760 23.68 475 24.71 1300 25.74 475 26.78 475 27.82 475 28.85 475 29.89 475 Running Finished 14-Aug-2013 09:11:54 ################################################## T4 ARM Cortex-A9 1500 MHz, Android 4.0.3 CPU Development Performance Setting MemSpeed Total Elapsed Time 13.0 seconds Android Java CPU MHz 14-Aug-2013 16:26:27 0.00 1200 1.02 1200 2.04 1200 3.06 1200 4.07 1200 5.09 1200 6.12 1200 7.13 1200 8.15 1200 9.17 1200 10.18 1200 11.20 1200 12.22 1200 13.25 1200 14.27 1200 15.30 1200 16.32 1200 17.34 1200 18.37 1200 19.40 1200 20.44 1200 21.46 1200 22.47 1200 23.49 1200 24.51 1200 25.52 1200 26.54 1200 27.56 1200 28.61 1200 29.63 1200 Running Finished 14-Aug-2013 16:26:58 CPU Development Normal MHz Setting MemSpeed Total Elapsed Time 13.6 seconds Android Java CPU MHz 14-Aug-2013 16:21:44 0.01 288 1.08 192 2.16 192 3.25 96 4.42 192 5.66 288 6.71 288 7.84 192 8.93 384 9.97 864 10.99 1200 12.01 1200 13.03 1200 14.05 1200 15.07 1200 16.10 1200 17.12 1200 18.14 1200 19.17 1200 20.20 1200 21.22 1200 22.24 1104 23.26 720 24.29 336 25.34 144 26.46 144 27.57 144 28.69 144 29.81 144 30.92 144 Running Finished 14-Aug-2013 16:22:16

Initial loading times on Android tablet T2 were really slow, using the default browser. Opera, with high speed claims, was installed but only managed to speed up loading times of the small GIF files. T1 tablet, with the older CPU, provided some faster results than PCs with Windows, but failed to display the 1 MB GIF file. A broadband speed tester confirmed the slow T2 speed at 0.6 Mbps whilst a Linux desktop PC produced 8.5 Mbps.

Loading Time Seconds MHz OS 1 MB BMP 1 MB GIF 1 MB JPG 400 GIF Wireless Tablet T1 ARM 926EJ 800 Android 2.2 2.5-2.8 2.5-2.6# 2.3-2.7 6.5-7.4 Tablet T2 ARM v7-A9 800 Android 2.3.4 13.8-14.4 12.9-14.3 13.4-14.8 11.4-12.3 Tablet T2 ARM v7-A9 800 Andr 2.3.4 OP 13.5-14.3 13.0-14.8 13.2-13.7 5.5-6.0 Tablet T4 ARM v7-A9 1500 Android 4.0.3 2.0-2.3 2.1-2.5 2.0-2.4 3.9-5.2 Netbook Atom 1666 WinXP IE 5.5-5.8 2.5-4.1 2.6-3.2 7.4-8.0* Netbook Atom 1666 Abuntu FF 1.1-2.3 1.1-2.2 1.2-2.6 4.6-6.6 Laptop Core 2 1833 Win Vista IE 3.3-3.7 3.2-3.4 3.4-3.6 20.7-22.6 Laptop Core 2 1833 Abuntu FF 1.4-2.4 1.3-1.3 1.2-1.8 4.9-5.2 Wired Desktop 1 Core 2 1600 Abuntu FF 2.2-2.7 1.8-2.9 1.8-1.9 4.6-4.6 Desktop 1 Core 2 2400 Abuntu FF 1.9-2.3 1.1-1.4 1.2-1.4 4.6-4.6 Desktop 2 Phenom 3000 Win 7 IE 2.5-4.3 2.4-3.0 2.4-2.5 4.7-4.8 Desktop 2 Phenom 3000 Win 7 FF 2.4-2.7 2.5-3.0 3.5-2.7 5.3-6.1 Desktop 2 Phenom 3000 Win 7 GC 2.3-2.7 2.5-3.0 2.5-2.6 5.1-6.1 OP = Opera, IE = Internet Explorer, FF = FireFox, GC = Google Chrome # = no image display, * = stopwatch as timer did not work properly

 T1      Device TTFone M013S 10.1 inch tablet, 300-800 MHz VIA 8650
         Screen pixels w x h 600 x 1024
         Android Build Version      2.2
         Processor        : ARM926EJ-S rev 5 (v5l)
         BogoMIPS        : 797.97
         Features        : swp half thumb fastmult edsp java 
         CPU part        : 0x926
         Linux version 2.6.32.9

 T2      Device WayTeq xTAB-70 7 inch tablet, 800 MHz Cortex-A9
         Screen pixels w x h 600 x 800 
         Android Build Version      2.3.4
         Processor     : ARMv7 Processor rev 1 (v7l)
         BogoMIPS     : 2035.71
         Features : swp half thumb fastmult vfp edsp neon vfpv3 
         CPU part   : 0xc09                    - Cortex-A9
         Linux version 2.6.34

 T3      Device Samsung P7500
         Screen pixels w x h 1280 x 752 
         Android Build Version 3.2
         Processor  : ARMv7 Processor rev 0 (v7l)
         processor  : 0  BogoMIPS : 1998.84
         processor  : 1  BogoMIPS : 1998.84
         Features   : swp half thumb fastmult vfp edsp vfpv3 vfpv3d16 
         CPU part   : 0xc09                    - Cortex-A9
         Linux version 2.6.36.3

 T4      Device Miumiu w17 Pro 7 inch tablet, dual 1500 MHz  Cortex-A9
         Screen pixels w x h 600 x 976 
         Android Build Version      4.0.3 - Ice Cream Sandwich
         Processor  : ARMv7 Processor rev 0 (v7l)
         processor  : 0  BogoMIPS : 2393.70
         processor  : 1  BogoMIPS : 2393.70
         Features   : swp half thumb fastmult vfp edsp neon vfpv3 
         CPU part   : 0xc09                    - Cortex-A9
         Hardware   : Amlogic Meson6 g04 customer platform
         Linux version 3.0.8

 T5      Device Ainol Novo 7 Paladin Tablet, 1 GHz MIPS CPU, ARM emulation
         Screen pixels w x h 480 x 800
         Android Build Version      4.0.1
         system type : JZ4770
         processor : MIPS-compatible processor JZ4770
         cpu model : Ingenic Xburst
         BogoMIPS : 1005.97
         Features : fpu mxu dsp lowpower
         CPU implementer : Ingenic
         CPU architecture : MIPS
         Hardware : npm702
         Linux version 2.6.32.9

 T6      Device Asus Transformer TF700
         Screen pixels w x h 1920 x 1128
         Android Build Version      4.0.3
         Processor : ARMv7 Processor rev 9 (v7l)
         processor : 0  BogoMIPS : 1993.93
         processor : 1  BogoMIPS : 1993.93
         processor : 2  BogoMIPS : 1993.93
         processor : 3  BogoMIPS : 1993.93
         Features  : swp half thumb fastmult vfp edsp neon vfpv3
         CPU implementer : 0x41
         CPU architecture: 7
         CPU variant : 0x2
         CPU part : 0xc09                    - Cortex-A9
         CPU revision : 9
         Hardware : cardhu                   - nVidia Tegra 3
         Linux version 2.6.39.4

 T7      Device Google Nexus 7 quad core CPU 1.3, GHz 1.2 GHz > 1 core
         RAM 1 GB DDR3L-1333 Bandwidth 5.3 GB/sec
         Screen pixels w x h 1280 x 736 MHz 
         Twelve-core Nvidia GeForce ULP graphics 416 MHz
         Android Build Version      4.1.2
         Processor : ARMv7 Processor rev 9 (v7l)
         processor : 0  BogoMIPS : 1993.93
         processor : 1  BogoMIPS : 1993.93
         processor : 2  BogoMIPS : 1993.93
         processor : 3  BogoMIPS : 1993.93
         Features  : swp half thumb fastmult vfp edsp neon vfpv3 tls 
         CPU implementer : 0x41
         CPU architecture: 7
         CPU variant     : 0x2
         CPU part        : 0xc09             - Cortex-A9
         CPU revision    : 9
         Hardware        : grouper           - nVidia Tegra 3 T30L
         Revision        : 0000
         Linux version    3.1.10

 T8      Allwinner A13-MID, 1 GHz ARM Cortex-A8 
         Internal Drive MB    1007 Free     917
         SD Card        MB    5455 Free    4575
         Screen pixels w x h 800 x 432
         Android Build Version      4.0.4
         Processor : ARMv7 Processor rev 2 (v7l)
         BogoMIPS : 1001.88
         Features : swp half thumb fastmult vfp edsp neon vfpv3
         CPU implementer : 0x41
         CPU architecture: 7
         CPU variant : 0x3
         CPU part : 0xc08
         CPU revision : 2
         Hardware : sun5i
         Revision : 0000
         Linux version 3.0.8 

 T9      Device WM8650 800 MHz
         Screen pixels w x h 800 x 480
         Android Build Version      2.2
         Processor        : ARM926EJ-S rev 5 (v5l)
         BogoMIPS        : 797.97
         Features        : swp half thumb fastmult edsp java 
         CPU implementer : 0x41
         CPU architecture: 5TEJ
         CPU variant     : 0x0
         CPU part        : 0x926
         Hardware        : WMT
         Linux version 2.6.32.9

 T11    Voyo A15, Samsung EXYNOS 5250 Dual core 2.0 GHz Cortex-A15, 
        Mali-T604 GPU, 2 GB DDR3-1600 RAM, dual channel, 12.8 GB/s
        Screen pixels w x h 1920 x 1032 
        Android Build Version      4.2.2  - Jelly Bean
        Processor       : ARMv7 Processor rev 4 (v7l)
        processor       : 0
        BogoMIPS        : 992.87
        processor       : 1
        BogoMIPS        : 997.78
        Features        : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4
                          idiva idivt 
        CPU implementer : 0x41
        CPU architecture: 7
        CPU variant     : 0x0
        CPU part        : 0xc0f
        CPU revision    : 4
        Hardware        : SMDK5250
        Linux version 3.4.35Ut


 T12     Samsung GaIaxy Note 2, Quad core 1.6 GHz Cortex-A9
         Screen pixels w x h 720 x 1280
         Android Build Version      4.1.2
         Processor : ARMv7 Processor rev 0 (v7l)
         processor : 0 BogoMIPS : 1592.52
         processor : 2 BogoMIPS : 2189.72
         processor : 3 BogoMIPS : 2189.72
         Features : swp half thumb fastmult vfp edsp neon vfpv3 tls
         CPU implementer : 0x41
         CPU architecture: 7
         CPU variant : 0x3
         CPU part : 0xc09
         CPU revision : 0
         Chip revision : 0020
         Hardware : SMDK4x12
         Revision : 000b
         Linux version 3.0.31

 T13     Samsung Galaxy Note 1 Dual Core 1.4 GHz Cortex-A9
         Screen pixels w x h 800 x 1280
         Android Build Version      4.1.2
         Processor : ARMv7 Processor rev 1 (v7l)
         processor : 0 BogoMIPS : 1592.52
         processor : 1 BogoMIPS : 1990.65
         Features : swp half thumb fastmult vfp edsp neon vfpv3 tls
         CPU implementer : 0x41
         CPU architecture: 7
         CPU variant : 0x2
         CPU part : 0xc09
         CPU revision : 1
         Hardware : SMDK4210
         Revision : 0008
         Linux version 3.0.31

 P1      Device Motorola Milestone 1 CyanogenMod 7 ROM overclocked
         Screen pixels w x h 854 x 480
         Android Build Version      2.3.5
         Processor : ARMv7 Processor rev 3 (v7l)
         BogoMIPS : 598.90
         Features : swp half thumb fastmult vfp edsp neon vfpv3 
         CPU part : 0xc08                       - Cortex-A8
         Linux version 2.6.32.9

 P2      Device Samsung Galaxy s
         Screen pixels w x h 480 x 800
         Android Build Version      2.2
         Processor : ARMv7 Processor rev 2 (v7l)
         BogoMIPS : 996.00
         Features : swp half thumb fastmult vfp edsp neon vfpv3
         CPU part : 0xc08                       - Cortex-A8
         Linux version 2.6.32.9

 P3      Device Motorola Milestone 3 (XT860)
         Screen pixels w x h 960 x 540
         Android Build Version      2.3.6
         Processor : ARMv7 Processor rev 2 (v7l)
         processor : 0                          - CPU 1 of 2
         BogoMIPS : 598.90                      - too low?
         Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3
         CPU part : 0xc09                       - Cortex-A9         
         Linux version 2.6.35.7

 P4      Device Huawei u8800 - 800 MHz Scorpion CPU - Cortex-A8      
         Screen pixels w x h 480 x 800
         Android Build Version      2.3.5
         Processor : ARMv7 Processor rev 1 (v7l)
         BogoMIPS : 537.39
         Features : swp half thumb fastmult vfp edsp neon vfpv3
         CPU part : 0x00f
         Hardware : HUAWEI U8800 BOARD
         Linux version 2.6.35.7

 P5      Device HTC One X - Quad Core
         Screen pixels w x h 720 x 1184
         Android Build Version      4.0.3
         Processor : ARMv7 Processor rev 9 (v7l4
         processor : 0                          - CPU 1 of 4
         BogoMIPS : 1993.93 
         Features : swp half thumb fastmult vfp edsp neon vfpv3
         CPU part : 0xc09                       - Cortex-A9
         Hardware : endeavoru
         Linux version 2.6.39.4

 P6      Qualcomm Snapdragon S4, 1500 MHz, 1 GB DDR2 RAM
         Device HTC One S Ville - Dual Core 
         CPU MSM8260A? see P8 HTC One S MSM8960
         Screen pixels w x h 540 x 888
         Android Build Version      4.0.3
         Processor : ARMv7 Processor rev 0 (v7l)
         processor : 0
         BogoMIPS : 13.53
         processor : 1
         BogoMIPS : 13.53
         Features : swp half thumb fastmult vfp edsp neon vfpv3 tls
         CPU implementer : 0x51
         CPU architecture: 7
         CPU variant : 0x1
         CPU part : 0x04d
         CPU revision : 0
         Hardware : ville
         Revision : 0080
         Linux version 3.0.8-

 P7?     Device not given. [Evidence suggests Marvell technology
         e.g. Marvell's Brownstone Development Platform and 
         Marvell - PJ4Bv7 CPU with CPU implementer :0x56, 
         architecture: 7, CPU part :0x584, rev 2]
         Screen pixels w x h 1280 x 752 
         Android Build Version      4.0.3
         Processor : ARMv7 Processor rev 0 (v7l)
         processor   : 0  BogoMIPS   : 831.32
         processor   : 1  BogoMIPS   : 834.00
         Features: swp half thumb fastmult vfp edsp iwmmxt thumbee neon vfpv3
         CPU implementer    : 0x56
         CPU architecture: 7
         CPU variant        : 0x2
         CPU part           : 0x584
         CPU revision       : 0
         Hardware     : Brownstone2x
         Revision    : 0000
         Linux version 3.0.8, (Marvell GCC 201201)

 P8      Qualcomm Snapdragon S4, 1500 MHz, 1 GB dual channel RAM
         Device HTC One S  - Dual Core 
         CPU MSM8960 see P6 HTC One S MSM8260A?
         Screen pixels w x h 540 x 888
         Android Build Version      4.0.3
         Processor : ARMv7 Processor rev 0 (v7l)
         processor : 0
         BogoMIPS : 13.53
         processor : 1
         BogoMIPS : 13.53
         Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4
         CPU implementer : 0x51
         CPU architecture: 7
         CPU variant : 0x1
         CPU part : 0x04d
         CPU revision : 0
         Hardware : QCT MSM8960 CDP
         Revision : 0000
         Linux version 3.0.8

 P9      Device Samsung Galaxy s Captivate
         Screen pixels w x h 480 x 800 
         Android Build Version   2.3.5
         Processor : ARMv7 Processor rev 2 (v7l)
         BogoMIPS     : 996.00
         Features  : swp half thumb fastmult vfp edsp thumbee neon vfpv3 
         CPU part : 0xc08                       - Cortex-A8
         Linux version 2.6.35.7

 P10     Qualcomm Snapdragon S4, 1500 MHz, 1 GB dual channel RAM
         Device  HTC One X  - Dual Core
         CPU MSM8960
         Screen pixels w x h 720 x 1184 
         Android Build Version      4.0.3
         Processor       : ARMv7 Processor rev 0 (v7l)
         processor       : 0
         BogoMIPS        : 13.53
         processor       : 1
         BogoMIPS        : 13.53
         Features        : swp half thumb fastmult vfp edsp neon vfpv3 tls 
         CPU implementer : 0x51
         CPU architecture: 7
         CPU variant     : 0x1
         CPU part        : 0x04d
         CPU revision    : 0
         Hardware        : elite
         Revision        : 0080
         Linux version 3.0.8

 P11     Samsung Galaxy SIII, Quad Core 1.4 GHz Cortex-A9
         Dual Channel DDR2 RAM
         Screen pixels w x h 720 x 1280
         Android Build Version      4.0.4
         Processor : ARMv7 Processor rev 0 (v7l)
         processor : 0  BogoMIPS : 1592.52
         processor : 1  BogoMIPS : 2786.91
         processor : 3  BogoMIPS : 398.13
         Features : swp half thumb fastmult vfp edsp neon vfpv3 tls
         CPU implementer : 0x41
         CPU architecture: 7
         CPU variant : 0x3
         CPU part : 0xc09
         CPU revision : 0
         Hardware : SMDK4x12
         Revision : 000c
         Serial : 3b065f3d4df1bb2d
         Linux version 3.0.15

 P13     Samsung Galaxy GT-I9100 SII Dual core 1.2 GHz Cortex-A9
         Screen pixels w x h 480 x 800
         Android Build Version      4.1.2
         Processor : ARMv7 Processor rev 1 (v7l)
         processor : 0
         BogoMIPS : 1592.52
         processor : 1
         BogoMIPS : 2388.78
         Features : swp half thumb fastmult vfp edsp neon vfpv3 tls
         CPU implementer : 0x41
         CPU architecture: 7
         CPU variant : 0x2
         CPU part : 0xc09
         CPU revision : 1
         Hardware : SHW-M250K
         Revision : 000a
         Linux version 3.0.31

 P14     Hawaii? Dual Core Cortex-A9
         Screen pixels w x h 540 x 888 
         Android Build Version      4.2.1
         Processor       : ARMv7 Processor rev 0 (v7l)
         processor       : 0
         BogoMIPS        : 2000.48
         processor       : 1
         BogoMIPS        : 2000.48
         Features        : swp half thumb fastmult vfp edsp neon vfpv3 tls 
         CPU implementer : 0x41
         CPU architecture: 7
         CPU variant     : 0x3
         CPU part        : 0xc09       
         CPU revision    : 0
         Hardware        : hawaii
         Revision        : 0000
         Linux version 3.4.5

 P16     LG G2X 512 MB Dual-channel RAM Dual-core Cortex-A9 1 GHz
         Screen pixels w x h 480 x 800
         Android Build Version      2.3.4
         Processor : ARMv7 Processor rev 0 (v7l)
         processor : 0 and 1 BogoMIPS : 1998.84
         Features : swp half thumb fastmult vfp edsp vfpv3 vfpv3d16
         CPU implementer : 0x41
         CPU architecture: 7
         CPU variant : 0x1
         CPU part : 0xc09
         CPU revision : 0
         Hardware : Tegra 2 Development System
         Linux version 2.6.32

 EP1     Device Emulator 3 GHz Phenom
                      or 2.4 GHz Core 2
         Screen pixels w x h 240 x 320
         Android Build Version      2.2
         Processor  : ARM926EJ-S rev 5 (v5l)
         BogoMIPS    : 522.64
         Linux version 2.6.29

 ET1     Device Emulator 3 GHz Phenom
         Screen pixels w x h 600 x 1024
         Android Build Version      2.2
         Processor : ARM926EJ-S rev 5 (v5l)
         BogoMIPS  : 530.84
         Linux version 2.6.29

 ET2     Device Emulator 3 GHz Phenom
                      or 2.4 GHz Core 2
         Screen pixels w x h 600 x 1024
         Android Build Version      4.0.3
         Processor       : ARMv7 Processor rev 0 (v7l)
         BogoMIPS : 527.56
         Linux version 2.6.29

 BS1    BlueStacks Emulator on 3 GHz Phenom
        Screen pixels w x h 1024 x 600
        Android Build Version      2.3.4
        processor       : 0
        vendor_id       : AuthenticAMD
        cpu family      : 16
        model           : 4
        model name      : AMD Phenom(tm) II X4 945 Processor
        stepping        : 2
        cpu MHz         : 3013.000
        cache size      : 512 KB
        -
        -
        bogomips        : 26686.25
        Linux version 2.6.38

 BS2    BlueStacks Emulator on 1.83 GHz Core 2 Duo
        Screen pixels w x h 1024 x 600
        Android Build Version      2.3.4
        processor       : 0
        vendor_id       : GenuineIntel
        cpu family      : 6
        model           : 15
        model name      : Intel(R) Core(TM)2 Duo CPU     T5550  @ 1.83GHz
        stepping        : 13
        cpu MHz         : 1828.000
        cache size      : 2048 KB
        -
        -
        bogomips        : 12294.55
        Linux version 2.6.38