Robert L. Harris wrote:
>
> Back on the Kernel list after a long hiatis. Need some experienced
> optinions.
>
> Current Setup:
>
> Linux Legato Backup server (E1000 nic) Linux-2.4.19-pre4
> 5xLinux NFS servers (E1000 nic) Linux-2.4.19-pre4
>
> Legato mounts the NFS shares over a Gig ether and uses them as backup
> media for non-offsite/non-longterm. This works very well when NFS
> behaves.
>
> The probems is that every now and then the network/nfs just hang up for
> a while and gets VERY slow. Some research has been done and it seems
> that the PCI latency is part of the problem, especially when IDE Raid
> hits the disks hard, this can overrun the buffers on the GigE card.
>
> I've got a test NFS server coming in and will look at upgrading the
> kernel to 2.4.19-pre11 as there were some bugs associated with E1000 and
> NFS I saw in pre-[7-9] area. I'm also considering trying to use
> Network Block Device instead of NFS. Has anyone tried this?
>
> Any suggestions that doesn't involve hitting up a non-existant budget?
>
>
> Robert
Have you increased the e1000 Rx and Tx descriptors?
Could try the e1000 NAPI patch as well...
Ben
-- Ben Greear <greearb@candelatech.com> <Ben_Greear AT excite.com> President of Candela Technologies Inc http://www.candelatech.com ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Oct 23 2002 - 22:00:55 EST