SDcard benchmark

Benchmark

Kernel 3 UMS (same results with CONFIG_PM_RUNTIME disabled)
Read (38 MB): 12.58 MB/s*                 $ sudo hdparm -t --direct /dev/sdc1
Write(42 MB): max 811 KB/s, avg 530 KB/s  $ dd bs=1M count=40 if=/dev/zero of=test conv=fdatasync

Kernel 3 MTP (jmtpfs)
Read (42 MB):   9.8 MB/s*  $ time bash -c "(cp test /tmp/test)"
Write(42 MB):   3.7 MB/s*  $ dd bs=1M count=40 if=/dev/zero of=test conv=fdatasync

Kernel 3 ADB
Pull (42 MB):  3.16 MB/s*  $ adb pull /sdcard/test /tmp/test
Push (42 MB):  3.12 MB/s*  $ adb push test /sdcard/test

Kernel 3 SD Tools benchmark (https://play.google.com/store/apps/details?id=ales.veluscek.sdtools)
Read Speed :   12.7 MB/s**
Write Speed:    9.6 MB/s**

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Kernel 2.6 UMS
Read (42 MB):   13 MB/s*  $ sudo hdparm -t --direct /dev/sdc1
Write(42 MB): 6.45 MB/s*  $ dd bs=1M count=40 if=/dev/zero of=test conv=fdatasync

Kernel 2.6 MTP (jmtpfs)
Read (42 MB):  12.6 MB/s*  $ time bash -c "(cp test /tmp/test)"
Write(42 MB):   4.4 MB/s*  $ dd bs=1M count=40 if=/dev/zero of=test conv=fdatasync

Kernel 2.6 ADB
Pull (42 MB):  3.88 MB/s*  $ adb pull /sdcard/test /tmp/test
Push (42 MB):  3.63 MB/s*  $ adb push test /sdcard/test

Kernel 2.6 SD Tools benchmark (https://play.google.com/store/apps/details?id=ales.veluscek.sdtools)
Read Speed :   13.4 MB/s**
Write Speed:   14.3 MB/s**

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I/O Scheduler: deadline
Governor CPU:  ondemand
BT on
WIFI on
Screen off
KSM on
zRam SWAP on
SD-ext not mounted
SD swap off
Filesystem: exFAT
Device: cooper
* 1 MB= 10^3 KB
**1 MB= 2^10 KB