Comment 367 for bug 620074

kernel 2.6.30-rc6
yura@suse:~> export LANG=en
yura@suse:~> dd if=/dev/zero of=test1 bs=1M count=10000
10000+0 records in
10000+0 records out
10485760000 bytes (10 GB) copied, 129.928 s, 80.7 MB/s

yura@suse:~> vmstat 1
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r b swpd free buff cache si so bi bo in cs us sy id wa
 3 8 0 44708 0 7628596 0 0 249 12283 362 821 4 3 66 28
 0 8 0 49180 0 7627532 0 0 0 40517 1061 1581 7 4 0 89
 0 7 0 47188 0 7627180 0 0 0 59694 1156 1505 5 6 0 89
 1 6 0 46692 0 7628276 0 0 0 55553 1144 1476 6 5 0 90
 0 8 0 46428 0 7628160 0 0 20 51573 900 1096 5 4 0 90
 0 7 0 46568 0 7627860 0 0 0 64024 1127 1480 5 5 0 90
 0 7 0 45796 0 7629100 0 0 12 44597 889 987 6 4 0 90
 0 8 0 46904 0 7627808 0 0 332 40500 1100 1485 6 4 0 90
 0 7 0 47772 0 7626884 0 0 168 45300 1158 1628 6 4 0 90
 0 8 0 47216 0 7624456 0 0 72 67116 958 1151 5 5 0 90
 0 7 0 47032 0 7626480 0 0 280 29244 1177 1667 5 4 0 91
 0 7 0 45936 0 7626640 0 0 248 58872 922 1060 6 5 0 89
 0 9 0 44988 0 7626640 0 0 216 62492 945 1359 2 6 0 92
 0 8 0 47548 0 7625932 0 0 152 47164 926 1425 1 4 0 95
 1 6 0 45276 0 7627256 0 0 36 54721 605 1089 2 4 0 94
 0 7 0 48208 0 7626388 0 0 44 43612 834 1198 1 4 0 95
 0 8 0 47096 0 7625644 0 0 132 53789 655 1156 1 4 0 94
 0 7 0 46344 0 7624828 0 0 468 50292 981 2089 2 4 0 94
 0 8 0 46576 0 7625416 0 0 116 44056 1155 2119 1 3 0 96
 0 8 0 47476 0 7624800 0 0 636 38936 734 1125 2 4 0 94
 0 8 0 47348 0 7626676 0 0 32 58410 885 1613 1 5 0 93
 1 6 0 48508 0 7626280 0 0 0 67256 623 969 1 4 0 94
 0 7 0 47984 0 7625328 0 0 0 64888 694 1335 2 6 0 92
 0 7 0 45800 0 7626692 0 0 0 62496 1002 1698 1 4 0 95
 0 7 0 48220 0 7625052 0 0 0 61952 614 1222 2 5 0 93
 0 7 0 48508 0 7623300 0 0 0 69632 890 1586 1 5 0 94