this isn't really a solution, because linux development will outpace you, but have you tried building a really tight kernel? for desktop machines, i've gotten noticable performance gains by building a moduleless kernel with only the minimum needed functionality. i built custom kernels for (unnamed registrar) and we got +10% packet throughput on linux 2.4 running an (unnamed nameserver) for (unnamed tlds).
i think there are some kernel threads that you may be able to eliminate with a different kernel. i don't know if you need 'em though. - erik On Fri Jun 9 14:58:10 CDT 2006, [EMAIL PROTECTED] wrote: On Wed, Jun 07, 2006 at 11:19:13PM -0600, Ronald G Minnich wrote: [...] > > 3 ? SN 0:00 [ksoftirqd/0] > > 4 ? S 0:00 [watchdog/0] > > 5 ? S 0:00 [migration/1] > > 6 ? SN 0:00 [ksoftirqd/1] > > 7 ? S 0:00 [watchdog/1] > > 8 ? S 0:00 [migration/2] > > 9 ? SN 0:00 [ksoftirqd/2] > > 10 ? S 0:00 [watchdog/2] > > 11 ? S 0:00 [migration/3] > > 12 ? SN 0:00 [ksoftirqd/3] > > 13 ? S 0:00 [watchdog/3] > > 14 ? S< 0:00 [events/0] > > 15 ? S< 0:00 [events/1] > > 16 ? S< 0:00 [events/2] > > 17 ? S< 0:00 [events/3] > > 18 ? S< 0:00 [khelper] > > 19 ? S< 0:00 [kthread] > > 26 ? S< 0:00 [kblockd/0] > > 27 ? S< 0:00 [kblockd/1] > > 28 ? S< 0:00 [kblockd/2] > > 29 ? S< 0:00 [kblockd/3] > > 105 ? S 0:00 [pdflush] > > 106 ? S 0:00 [pdflush] > > 107 ? S 0:00 [kswapd1] > > 109 ? S< 0:00 [aio/0] > > 108 ? S 0:00 [kswapd0] > > 110 ? S< 0:00 [aio/1] > > 111 ? S< 0:00 [aio/2] > > 112 ? S< 0:00 [aio/3] > > 697 ? S< 0:00 [kseriod] > > 855 ? S 0:00 xsrv -D 0 tcp!*!20001 > > 857 ? S 0:00 9pserve -u tcp!*!20001 > > 864 ? S 0:00 u9fs -a none -u root -m 65560 -p 564 > > 865 ? S 0:00 /bin/ash > > > > see how little we have running? Oh, but wait, what's all that stuff in > > []? It's the stuff we can't turn off. Note there is per-cpu stuff, and > > other junk. Note that this node has been up for five hours, and this > > stuff is pretty quiet(0 run time); our nodes are the quietest (in the OS > > interference sense) Linux nodes I have yet seen. But, that said, all > > this can hit you.
