Re: [PATCH] RSS limit enforcement for 2.6

From: Pavel Machek
Date: Thu Mar 25 2004 - 09:37:07 EST


> >Hugh Dickins found a bug in the 2.4-rmap RSS limit enforcing
> >code that may well explain why the previous port of the code
> >to 2.6 resulted in bad performance. The split active lists
> >in 2.4-rmap probably masked the largest damages, but in 2.6
> >it was very much visible.
> >
> >
> Hi Rik,
> What was the problem by the way?

When running lingvistics computation, machine got completely
unusable due to bad memory pressure. nice -n 19 was
useless. Memory limit should help.
64 bytes from icmp_seq=28 ttl=51 time=448769.1 ms

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