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== Copy kernel source (from SSD with warm cache) == HDD: WD Scorpio Black 2.5" 750GB 7200rpm
* xfs 1 thread: 12.348s
== FS-Mark 3.3, creating 1M files ==
HDD: WD Scorpio Black 2.5" 750GB 7200rpm
<plot>
== sysbench random read/write 16K in 8M files ==
HDD: WD Scorpio Black 2.5" 750GB 7200rpm
<plot>
== sysbench random read/write 16K in 16K files ==
HDD: WD Scorpio Black 2.5" 750GB 7200rpm
<plot>
32.0 268.36
64.0 257.91
ENDDATASET
</plot>
== [http://sourceforge.net/projects/filebench/ filebench] fileserver, dirty_ratio=1% ==
* HDD: WD VelociRaptor WD6000HLHX, 10000rpm
* fileserver test is read whole file + append + write whole file test ran on 10000 files in X threads
* filebench fails to run fileserver test with O_DIRECT, so I tested it with dirty_ratio=1% like this:
<code-bash>
echo 1 > /proc/sys/vm/dirty_ratio
echo 0 > /proc/sys/vm/dirty_bytes
echo 0 > /proc/sys/kernel/randomize_va_space
for i in 1 2 4 8 16 32 50 64; do
echo
echo "== $i threads =="
echo
echo 1 > /proc/sys/vm/drop_caches
sync
filebench <<EOF
load fileserver
set \$dir=/media/sdd
set \$nthreads=$i
run 30
EOF
done
echo 20 > /proc/sys/vm/dirty_ratio
</code-bash>
<plot>
set xrange [1:64]
set logscale x
set xtics (1, 2, 4, 8, 16, 32, 50, 64)
set yrange [0:300]
set xlabel 'threads'
set ylabel 'ops/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 1893
2.0 1801
4.0 1778
8.0 1864
16.0 1720
32.0 1473
50.0 1210
64.0 1056
ENDDATASET
DATASET ext4
1.0 3075
2.0 2352
4.0 2334
8.0 2346
16.0 2022
32.0 1559
50.0 1317
64.0 1163
ENDDATASET
</plot>
