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List:       apache-httpd-dev
Subject:    Re: mod_http2 memory footprint
From:       Stefan Eissing <stefan.eissing () greenbytes ! de>
Date:       2015-12-11 9:23:07
Message-ID: 228A6BF2-9D64-47CC-816F-97310EE97C8F () greenbytes ! de
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The "slowly growing" part is certainly not good. For 2.4.18, my main concern was \
stability and some important new features. I had a look at memory consumption but \
could not find anything that explained the growth well. Definitely needs more \
attention in the future...

> Am 10.12.2015 um 10:25 schrieb Steffen <info@apachelounge.com>:
> 
> 
> Running mod_ssl-only Apache  (no external party modules), which is in front \
> (reverse proxy) of a non-ssl Apache. 
> With mod-http2 the memory footprint varies greatly:
> 
> Without mod_http2 a steady ~40 MB.
> 
> With mod_http2 it starts with ~50MB and peaks to over ~300 MB with a average of \
> ~130 MB and slowly growing. 
> 
> Measured with 2 minutes interval, so the peak could be much higher.
> 
> Attached the graph from today.
> The dark line is the non-ssl Apache.
> The dip is the switch from 2.4.18-dev-http2-Alpha to 2.4.18-vote.
> 
> Happens with 2.4.17 as well as 2.4.18.
> 
> 
> Steffen
> 
> <watch_cfg-httpd-ram-d-n.png>


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