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发表于 2004-12-18 03:48:45
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最初由 lucifer 发表
问题在于,对普通应用来说,存在那么多的页面需要交换,以至于可以让那么几个毫秒甚至更少的时间累积到足以对性能造成用户可以感知的影响吗?
You get the WRONG image.
Split into two(Strip) drivers improve the speed SIGNIFICANTLY. Four would make it CRAZY.
Of course, you have to connect four drivers from four different ides, not four connectors, which is enough for eight drivers.
A PCI IDE card(Silicon) would provide two extra ide. SCSI is an alternative choice.
This is what my system looks like: (proud of them, two IDE HDs)
[php]
[root@Fantasy /tmp]$ hdparm -Tt /dev/md0
/dev/md0:
Timing buffer-cache reads: 1676 MB in 2.00 seconds = 838.13 MB/sec
Timing buffered disk reads: 342 MB in 3.00 seconds = 113.98 MB/sec
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