From: Andi Kleen <ak@suse.de>
To: David Miller <davem@davemloft.net>
Cc: kuznet@ms2.inr.ac.ru, dev@sw.ru, netdev@vger.kernel.org
Subject: Re: [PATCH] limit rt cache size
Date: Tue, 8 Aug 2006 07:11:06 +0200 [thread overview]
Message-ID: <200608080711.06788.ak@suse.de> (raw)
In-Reply-To: <20060807.204214.68039839.davem@davemloft.net>
> So for now it is probably sufficient to just get rid of the
> HASH_HIGHMEM flag here. Later we can try changing this multiplier
> of "16" to something like "8" or even "4".
The hash sizing code needs far more tweaks. iirc it can still allocate several GB
hash tables on large memory systems (i've seen that once in the boot log
of a 2TB system). Even on smaller systems it is usually too much.
IMHO there needs to be a maximum size (maybe related to the sum of
caches of all CPUs in the system?)
Best would be to fix this for all large system hashes together.
-Andi
next prev parent reply other threads:[~2006-08-08 5:11 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <44D75EF8.1070901@sw.ru>
2006-08-07 16:48 ` [PATCH] limit rt cache size Alexey Kuznetsov
2006-08-08 3:42 ` David Miller
2006-08-08 5:11 ` Andi Kleen [this message]
2006-08-08 6:18 ` David Miller
2006-08-08 6:53 ` Andi Kleen
2006-08-08 7:01 ` David Miller
2006-08-08 12:54 ` Kirill Korotaev
2006-08-08 12:58 ` Andi Kleen
2006-08-08 20:37 ` akepner
2006-08-08 23:23 ` Andi Kleen
2006-08-09 0:06 ` akepner
2006-08-09 0:11 ` David Miller
2006-08-09 0:11 ` akepner
2006-08-09 0:22 ` David Miller
2006-08-09 1:02 ` Andi Kleen
2006-08-09 16:16 ` akepner
2006-08-09 16:32 ` Andi Kleen
2006-08-10 0:02 ` David Miller
2006-08-09 8:05 ` Kirill Korotaev
2006-08-09 0:24 ` Andi Kleen
2006-08-09 0:32 ` David Miller
2006-08-09 8:09 ` Kirill Korotaev
2006-08-09 8:53 ` Eric Dumazet
2006-08-09 9:22 ` David Miller
2006-08-08 8:17 ` Kirill Korotaev
2006-08-08 8:34 ` David Miller
2006-08-08 8:57 ` Eric Dumazet
2006-08-08 9:12 ` David Miller
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