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правка
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→filebench fileserver, dirty_ratio=20%
* HDD: WD VelociRaptor WD6000HLHX, 10000rpm
* Same test but ran with default 20% dirty_ratio setting. It's clearly seen that the system was using page cache extensively (- ext4 was permanently gaining an unreal result in the single-thread test...)
<plot>
50.0 2632
64.0 2778
ENDDATASET
</plot>
<plot>
set xrange [1:64]
set logscale x
set xtics (1, 2, 4, 8, 16, 32, 50, 64)
set yrange [0:400]
set xlabel 'threads'
set ylabel 'MB/s (more is better)'
set xzeroaxis
set grid ytics
set style fill solid 1.0 noborder
set boxwidth 0.7 relative
plot 'xfs.dat' using 1:2 title 'XFS' with linespoints, 'ext4.dat' using 1:2 title 'ext4' with linespoints
DATASET xfs
1.0 182
2.0 88.7
4.0 78.5
8.0 78.3
16.0 83.8
32.0 85.6
50.0 62.0
64.0 39.2
ENDDATASET
DATASET ext4
1.0 382.9
2.0 96.8
4.0 97.5
8.0 94.9
16.0 83.8
32.0 73.3
50.0 61.5
64.0 64.2
ENDDATASET
</plot>