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zd
Joined: 30 Apr 2008
Posts: 14
小企鹅: 473
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 Posted: 2008-Apr-30 Wed, pm1:15 |
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| Post subject: c1000装好yonggun后测试了一下sd和cf的读取速度(增加sdhc测试结果) |
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废话少说，直接上数据，
sd--一张号称100x的卡
#hdparm -Tt /dev/mmcblk0p1
Timing cached reads: 168MB in 2 seconds = 83.86MB/s
Timing buffered disk reads: 6MB in 3.19 secondes = 1.88MB/s
cf--一张pqi的256M旧卡
#hdparm -Tt /dev/mmcblk0p1
Timing cached reads: 168MB in 2 seconds = 83.97MB/s
Timing buffered disk reads: 6MB in 3.19 secondes = 2.14MB/s
我这张sd读取速度比cf慢12%，并不是很慢，这个数据中cf的结果和我以前在pdaxrom下面测到的cf卡速度类似；以前在pdaxrom下没侧过sd，r198不认我的sd，所以才撞到yonggun/debian这边来了
＃＃＃＃＃＃＃＃＃＃＃＃＃
Toshiba SDHC class 4
#hdparm -Tt /dev/mmcblk0p1
Timing cached reads: 168MB in 2.02 seconds = 83.31MB/s
Timing buffered disk reads: 6MB in 3.02 secondes = 1.99MB/s
测试结果会上下浮动，buffered read从1.88~1.99MB/s都有 |
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Enigma
Joined: 09 Apr 2007
Posts: 60
小企鹅: 1733
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| Posted: 2008-May-07 Wed, pm1:16 |
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SD:2G SCANDISK普速
Timing cached reads: 172MB in 2.01 seconds = 85.67MB/s
Timing buffered disk reads: 6MB in 3.45 secondes = 1.74MB/s
CF:1G Kingston 普速
Timing cached reads: 174MB in 2.02 seconds = 86.16MB/s
Timing buffered disk reads: 8MB in 3.33 secondes = 2.40MB/s
_________________
SL-C1000, 1G CF, 2G SD,1G SD,4G SD
SL-C3100, Symbol CF WIFI.4G SD挂载/home
PC:Freebsd 7.0,Ubuntu Linux 8.10
Debian+Octave绝配. |
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ruf
Joined: 30 Mar 2006
Posts: 71
小企鹅: 1378
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| Posted: 2008-May-21 Wed, am9:26 |
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| 看上去SD卡不比CF卡慢多少了。那还是用SD卡扩展存储好一些，CF卡可以扩展外设，例如WIFI之类的。 |
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