On Tue, 2010-10-12 at 23:07 +0100, Dave Clarke wrote: > Package: linux-image > Version: 2.6.32-5-686 > > After dist-upgrade from Lenny to Squeeze write speed is halved. Shown > with bonnie++. Before upgrade write speed was 21MB/s, after upgrade > 10MB/s. Let's see the output from bonnie++. Also are you running this locally or over NFS or other network filesystem? > Hardware: Dell Powervault 745n with hardware raid Adaptec 2610SA. > Celeron(R) CPU 2.40GHz, 512MiB RAM. > > Confirmed link to kernel with: > > otherserver$ scp 4gbfile raid_server: > 100% 4000MB 6.6MB/s 10:06 > > reboot server with kernel 2.6.26-2-686 leftover from Lenny. > otherserver$ scp 4gbfile raid_server: > 100% 4000MB 11.3MB/s 05:55 > > Also of note that when copying a large file the system becomes heavily loaded. > iowait: 80.1%wa > load average: 3.58, 1.48, 0.66 > Mem: 514428k total, 508276k used, 6152k free, 10084k buffers That seems like too little memory for a file server. Can you send the contents of /proc/meminfo? Also what filesystem is used on the RAID? Ben. -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse.
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