[ejabberd] some ejabberd memory benchmarks
jack at chesspark.com
Tue Aug 19 03:37:10 MSD 2008
>>> We are noticing similar things, are these tls connections? I ask because
>>> searching for this I found the following ticket.
>> Yep, they are. I'll do another set of tests disabling it and see what happens.
> Not the same situation as in the ticket, but disabling tls dropped
> memory usage of almost 30%
So for us, memory usage is around 1GB with only 140 people connected.
We're using odbc backends for everythingi but mod_last. None of the
mnesia tables is very large (largest one is 7MB and is offline_msg).
Inspecting the running processes and memory shows just under 600
processes, the largest one is between 30 and 128MB in size usually.
That is often dets:open_file_loop2. So there seem to be many fairly
large processes which eventually add up to a lot of memory usage. At
peak load today this was regularly causing the server (2GB of ram) to
run out of memory, and crashed ejabberd.
Is this a known problem, or is there a leak somewhere? For now we
moved to a machine with 8GB of ram.
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