Re: PROBLEM: high system usage / poor SMP network performance

Rik van Riel (riel@conectiva.com.br)
Mon, 28 Jan 2002 17:40:22 -0200 (BRST)


On Mon, 28 Jan 2002, Vincent Sweeney wrote:

> > > CPU0 states: 27.2% user, 62.4% system, 0.0% nice, 9.2% idle
> > > CPU1 states: 28.4% user, 62.3% system, 0.0% nice, 8.1% idle
> >
> > The important bit here is ^^^^^^^^ that one. Something is causing
> > horrendous lock contention it appears.
>
> I've switched a server over to the default eepro100 driver as supplied
> in 2.4.17 (compiled as a module). This is tonights snapshot with about
> 10% higher user count than above (2200 connections per ircd)

Hummm ... poll() / select() ? ;)

> I will try the profiling tomorrow

readprofile | sort -n | tail -20

kind regards,

Rik

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