Rolf Ronning a écrit : > KDE 1 result > /dev/hda: > Timing buffer-cache reads: 128 MB in 1.32 seconds = 96.97 MB/sec > Timing buffered disk reads: 64 MB in 14.53 seconds = 4.40 MB/sec > > KDE 2 result > /dev/hda: > Timing buffer-cache reads: 128 MB in 1.47 seconds = 87.07 MB/sec > Timing buffered disk reads: 64 MB in 26.13 seconds = 2.45 MB/sec > [root@willie rolf]# hdparm -Tt /dev/hda > > KDE 3 result > /dev/hda: > Timing buffer-cache reads: 128 MB in 1.40 seconds = 91.43 MB/sec > Timing buffered disk reads: 64 MB in 24.12 seconds = 2.65 MB/sec > > windowmaker > /dev/hda: > Timing buffer-cache reads: 128 MB in 0.95 seconds =134.74 MB/sec > Timing buffered disk reads: 64 MB in 14.07 seconds = 4.55 MB/sec > > Gnome > /dev/hda: > Timing buffer-cache reads: 128 MB in 1.01 seconds =126.73 MB/sec > Timing buffered disk reads: 64 MB in 13.14 seconds = 4.87 MB/sec > > As you can see the results are not too good, and they are poorer in kde than > in the other ones. My disk is not running with DMA at the moment (which is > another story), but I have tried with DMA turned on without much > improvement... If your hd is an UDMA66 try something like : /sbin/hdparm -X66 -d1 -u1 -m16 -c3 /dev/hda and restart the tests. The first result "Timing buffer-cache reads" is less important than the 2nd one, where you should find great improvements. Be careful if you use a kernel 2.4 : I had file system corruption once with those settings. For me, the results should not depend upon which WM you are running.
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