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List: varnish-misc
Subject: Re: malloc and caching misses
From: Lasse Karstensen <lkarsten () varnish-software ! com>
Date: 2015-07-29 11:48:58
Message-ID: 20150729114857.GE21270 () immer ! varnish-software ! com
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On Wed, Jul 29, 2015 at 10:37:11AM +0200, Tobias Honacker wrote:
> first of all we are using malloc 16G and varnish currently using > 25G of
> our memory so the vm begin to swap. n_lru_nuked value raise up quickly.
For reducing the resident memory size, try reducing fetch_chunksize to 8KB.
If that doesn't bring the memory consumption down, reduce the malloc
size.
Since you're doing a lot of return(pass), there will be a lot of
transient memory usage for buffering the objects as they are passed
through Varnish.
Note that there is a concurrency related panic in 4.0.2 when running
with a bit of load. You should upgrade to 4.0.3.
--
Lasse Karstensen
Varnish Software AS
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