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在Linux上硬盘的性能测试; r1 {8 f/ J$ Z4 x* ~& x4 K
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硬盘无法打开 using_dma 选项,在Linux上硬盘的性能和这个关系比较大
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# hdparm -c3 -d1 -u1 -X70 /dev/hda ( i/ q9 \: M9 O, a6 G% U
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/dev/hda:
* u+ z8 Y# E) B5 @9 u. _setting 32-bit IO_support flag to 3
+ R' R/ i3 U& a* hsetting unmaskirq to 1 (on)
v$ i& T. i. G3 r- ^( }0 Csetting using_dma to 1 (on) * a7 P1 |* ?) ?6 w6 `; L" A( n
HDIO_SET_DMA failed: Operation not permitted
. t* e& a' ^$ J2 a9 ssetting xfermode to 70 (UltraDMA mode6)
2 s" y' w: W: r9 |1 s/ U9 G6 vIO_support = 3 (32-bit w/sync) 7 k: y$ a% L4 G; p) V
unmaskirq = 1 (on)
( [, b( f" p* `" T8 o4 @3 e* ]using_dma = 0 (off)
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# hdparm -tT /dev/hda 0 k, D7 C, ?9 X) D- n; v* {
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/dev/hda: & m0 Z: Z0 S# x* c
Timing cached reads: 956 MB in 2.00 seconds = 477.83 MB/sec ' u* l* X0 E- p z E, N! o, E5 W
Timing buffered disk reads: 6 MB in 3.57 seconds = 1.68 MB/sec ! e' U5 N% U- O+ M6 ~5 W
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9 \8 q3 v% l/ y3 u* w0 G4 J在Windows XP上硬盘的性能测试 |
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