Patrick McHardy wrote:
Ben Greear wrote:
Patrick McHardy wrote:
I took on Ben's challenge to increase the number of possible routing
tables, these are the resulting patches.
I am seeing problems..though they could be with the way I'm using the tool
or pehaps I patched the kernel incorrectly.
I applied the 3 patches to 2.6.17..all patches applied without problem,
but with a few lines of fuzz. I get the same behaviour with and
without the new 'ip' patches applied.
If I do an 'ip ru show', then I see lots of tables, though not all it
seems. (I have not tried beyond 205 yet). But, if I do an
'ip route show table XX', then I see nothing or incorrect values.
My patches introduced a bug when dumping tables which could lead to
incorrect routes beeing dumped. A second bug (that already existed)
makes the kernel fail when dumping more rules than fit in a skb.
I think I've already seen the patch to address the second problem
a short time ago sent by someone else. Anyway, this patch should
fix both.
With this patch applied everything is looking much better. I currently
have 400+ interfaces and one routing table per interface, and traffic
is passing as expected.
This is probably due to my own application polling interfaces for
stat updates...but I am seeing over 50% usage (with more system than user-space)
in this setup on an otherwise lightly loaded system. top shows no process
averaging
more than about 2% CPU (and only 2-3 are above 0.0 typically), which I find
a little strange. load is around 3.0.
I'll dig into my code and see if I can tune the stat-gathering logic a bit...
Thanks,
Ben
--
Ben Greear <[EMAIL PROTECTED]>
Candela Technologies Inc http://www.candelatech.com
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