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在Linux上硬盘的性能测试! u$ h8 u1 b# L0 e" V
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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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4 _1 F# v$ `6 H! Q" B! u# hdparm -c3 -d1 -u1 -X70 /dev/hda " M1 e' ]1 t1 o0 u" Z! M5 r
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/dev/hda: j% o# \/ N- g# J: ?
setting 32-bit IO_support flag to 3 & Q: Z& t$ x" u7 s! a
setting unmaskirq to 1 (on) . Z' G5 Q7 }$ u% O h4 l9 M' v
setting using_dma to 1 (on) 5 b$ D7 |+ F7 X* @: h* W/ X2 ^
HDIO_SET_DMA failed: Operation not permitted
0 e, b5 x$ w g2 a0 psetting xfermode to 70 (UltraDMA mode6)
8 D$ c, c( d2 jIO_support = 3 (32-bit w/sync) 3 C8 d/ S& R) N# j) @
unmaskirq = 1 (on)
# N1 k* u3 i/ M' a7 M& V6 Nusing_dma = 0 (off) , t' T/ l1 U6 j5 H4 h) I! U+ S O
+ Q( r* V# s8 r G/ {/ F# hdparm -tT /dev/hda
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/dev/hda: ; J9 m* L1 D1 K- N
Timing cached reads: 956 MB in 2.00 seconds = 477.83 MB/sec , s: W. a" A {
Timing buffered disk reads: 6 MB in 3.57 seconds = 1.68 MB/sec * [+ a0 r, Z' V5 P. b$ l
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在Windows XP上硬盘的性能测试 |
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