J.A. Magallon wrote:
> Seriously, if you have that kind of problems, take the -aa kernel and use it.
> I use it regularly and it behaves as one would expect, and fast.
> And please, report your results...
I run a 2 cpu server with 16 disks and around 5 megabytes of writes a
second. With plain 2.4.18 (using the feral.com qlogic driver) and 2GB
ram, this seemed okay. Upgrading to 4GB ram slowed the system down, and
normal shell commands became quite unresponsive with 4GB.
So we built a second server, with 2.4.19-pre9-aa2 using the qlogic
driver in the kernel. That driver needs patching, as it will otherwise
get stuck in a 'no handle slots' condition. Used a patch that I posted
to linux-scsi a while ago.
This combination works great so far. In the meantime, the 2.4.18 box has
been left running, but the load shoots up to 75 sometimes with no
apparent reason (the -aa2 box stays below a load of 3).
Once the 2.4.18 box was really wedged: load at 70, server process stuck.
I logged in and the system was very responsive, but in reponse to a
reboot the system just sat there.
So we're going with 2.4.19-pre9-aa2 for now. I don't yet understand the
-aa series, for example how 2.4.19-rc1-aa1 would relate to
2.4.19-pre9-aa2, so I'm a bit wary of just upgrading in the -aa series
right now.
Thomas
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This archive was generated by hypermail 2b29 : Mon Jul 15 2002 - 22:00:17 EST