Great! My Toshiba SDHC class 4 4G card works also! Copy files in & out is positive, but cant do much tests as its belong to my DLSR. Wonder if hardware design confines the interface speed. ZDevil, can u do benchmark tests (Come on, yours's new haha ) ?
Here you go...
The followings are the simple benchmarking using hdparm -tT three times for each card, done on my C3200 (debian sid).
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This is the test result of SanDisk Ultra II SD
/dev/mmcblk0p1:
Timing cached reads: 166 MB in 2.02 seconds = 82.24 MB/sec
Timing buffered disk reads: 6 MB in 3.67 seconds = 1.63 MB/sec
/dev/mmcblk0p1:
Timing cached reads: 164 MB in 2.01 seconds = 81.55 MB/sec
Timing buffered disk reads: 6 MB in 3.66 seconds = 1.64 MB/sec
/dev/mmcblk0p1:
Timing cached reads: 166 MB in 2.03 seconds = 81.95 MB/sec
Timing buffered disk reads: 6 MB in 3.67 seconds = 1.63 MB/sec
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This is the test result of Toshiba SDHC 8GB
/dev/mmcblk0p1:
Timing cached reads: 164 MB in 2.00 seconds = 81.94 MB/sec
Timing buffered disk reads: 6 MB in 3.32 seconds = 1.81 MB/sec
/dev/mmcblk0p1:
Timing cached reads: 166 MB in 2.02 seconds = 82.14 MB/sec
Timing buffered disk reads: 6 MB in 3.33 seconds = 1.80 MB/sec
/dev/mmcblk0p1:
Timing cached reads: 164 MB in 2.01 seconds = 81.74 MB/sec
Timing buffered disk reads: 6 MB in 3.33 seconds = 1.80 MB/sec
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This is the test result of Hitachi Microdrive 6GB
/dev/hdc1:
Timing cached reads: 166 MB in 2.02 seconds = 82.18 MB/sec
Timing buffered disk reads: 6 MB in 3.24 seconds = 1.85 MB/sec
/dev/hdc1:
Timing cached reads: 166 MB in 2.01 seconds = 82.70 MB/sec
Timing buffered disk reads: 6 MB in 3.14 seconds = 1.91 MB/sec
/dev/hdc1:
Timing cached reads: 166 MB in 2.02 seconds = 82.03 MB/sec
Timing buffered disk reads: 6 MB in 3.20 seconds = 1.87 MB/sec
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This is the test result of SanDisk Extreme III 16GB (now the internal disk)
/dev/hda1:
Timing cached reads: 164 MB in 2.02 seconds = 81.21 MB/sec
Timing buffered disk reads: 8 MB in 3.26 seconds = 2.45 MB/sec
/dev/hda1:
Timing cached reads: 162 MB in 2.01 seconds = 80.78 MB/sec
Timing buffered disk reads: 8 MB in 3.30 seconds = 2.42 MB/sec
/dev/hda1:
Timing cached reads: 162 MB in 2.00 seconds = 80.92 MB/sec
Timing buffered disk reads: 8 MB in 3.31 seconds = 2.42 MB/sec
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There is clearly a hardware limitation to the read/write speed, because ...
This is the result of the same Toshiba SDHC 8GB on the Eee PC:
/dev/sdb1:
Timing cached reads: 592 MB in 2.00 seconds = 295.56 MB/sec
Timing buffered disk reads: 46 MB in 3.08 seconds = 14.94 MB/sec
/dev/sdb1:
Timing cached reads: 528 MB in 2.01 seconds = 263.16 MB/sec
Timing buffered disk reads: 46 MB in 3.08 seconds = 14.95 MB/sec
/dev/sdb1:
Timing cached reads: 364 MB in 2.00 seconds = 181.79 MB/sec
Timing buffeared disk reads: 42 MB in 3.10 seconds = 13.55 MB/sec
(Replying using my C3200 with Epiphany-browser )
