On 7/4/06, Sven Köhler <[EMAIL PROTECTED]> wrote:
So about every 200MB (i guess the linux box writes the data into the cache in the RAM first) linux writes the harddisk. But during that time - during the time it writes that 200MB to disk, there is no chance for any other IO. I'm playing an mp3 from the very same fileserver. It stops playing, because the machine does answer the read-requests.
What filesystem are you using? I've seen this kind of behavior with XFS, and the anticipatory scheduler, and solved it with the following in my /etc/conf.d/local.start: test -f /sys/block/sda/queue/iosched/antic_expire && \ echo 0 >/sys/block/sda/queue/iosched/antic_expire test -f /proc/sys/vm/laptop_mode && echo 0 >/proc/sys/vm/laptop_mode test -f /proc/sys/fs/xfs/xfssyncd_centisecs && \ echo 500 > /proc/sys/fs/xfs/xfssyncd_centisecs You might also play with some of the other settings in /proc/sys/fs/xfs and see what works for you. Of course, if you are using a different filesystem or different scheduler, it might help to know that. -Richard -- [email protected] mailing list
