On Wed, Aug 05, 2009 at 10:32:29AM +0400, Paul Romanchenko wrote: > Package: linux-image-2.6.30-1-amd64 > Version: 2.6.30-1 > Severity: important > > Simple test: > $ dd if=/dev/zero of=./test.img bs=572041216 count=1 > 1+0 records in > 1+0 records out > 572041216 bytes (572 MB) copied, 24.3899 seconds, 23.5 MB/s > > It takes 24 seconds to write 572MB. During the dd, the system is > almost unresponsible, even Ctrl-C can't breake the operation. > During regular work, any io load (swapping/paging) freeze the system. > > Disk is not so bad: > > $ sudo hdparm -t /dev/sda > > /dev/sda: > Timing buffered disk reads: 268 MB in 3.02 seconds = 88.84 MB/sec > > Here is scheduler used (i tried all, 1-2 MB/s changes): > $ cat /sys/block/sda/queue/scheduler > noop [anticipatory] deadline cfq > > Some fs info > $ mount | grep sda > /dev/sda1 on / type ext3 (rw,relatime,errors=remount-ro) >
could you try 2.6.31-rc5 from buildserver, see trunk apt lines: http://wiki.debian.org/DebianKernel -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
