Are the commands that are overloading the first core multithreaded?
You may want to plugin a threaded I/O, as some of the lines of code are quite
old, and would not have any idea that multithreaded CPU's would ever exist.
A good drop in library would be http://code.google.com/p/google-perftools/ - it
also support OS-X for those Mac modders.
Owner Nigredo Studios http://www.nigredostudios.com
--- On Mon, 13/9/10, Marek Sieradzki marek.sierad...@gmail.com wrote:
From: Marek Sieradzki marek.sierad...@gmail.com
Subject: Re: [hlcoders] Fwd: Source 2007 engine and inconsistent dual/quad core
usage
To: Discussion of Half-Life Programming hlcoders@list.valvesoftware.com
Received: Monday, 13 September, 2010, 8:59 PM
On Mon, Sep 13, 2010 at 12:02 PM, c277...@bofthew.com wrote:
Does anyone know why Source 2007 mods usually don't use both (or all) cpu
cores as default?
Every time I start a Source 2007 mod, it uses 10% of core1 and 99-100% of
core2. For quads it goes so that core1 is 100% and rest are around 10%.
Manually setting the affinity of cores in task manager, after alt-tabbing
from the mod, first to 1 core and then back to 2 cores will even out the
usage percentages so that both cores use about 30-80% depending on mod. Same
works for quad cores as well.
I've seen and heard from my friends that this is quite common but I could not
find anymore info on this matter and I was wondering why this happens and is
there a way to fix this for good? Some have suggested using host_thread_mode
2 but that only works for some and to others it just brings more trouble.
Source 2006 mods seem distribute the usage to both cores evenly without any
hassle.
Do you mean 100%, 100% or 50%, 50%? Because every OS can juggle your
process from 1 core to another all the time. Also, do you mean client
or the server? Even though there's sv_parallel_sendpackets and similar
commands in my mod networking dominates CPU time and isn't really
parallellized (when it fills 1 core fully server starts be too slow to
reply at 33 Hz). I don't know if that's expected behavior.
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