You can use /affinity <hexvalue> (at least on windows os)

example: only on CPU0 would be 0000 0001 = 1 (/affinity 1)
only on CPU3 would be 0000 0100 = 4 (/affinity 4)
0 and 3 would be 5 ... etc pp

I use those settings using batch files and they work just fine.

----- Original Message ----- From: "Shizzle Nizzle" <infl...@gmail.com> To: "Half-Life dedicated Win32 server mailing list" <hlds@list.valvesoftware.com>
Sent: Friday, July 23, 2010 4:55 PM
Subject: Re: [hlds] Massive TF2 server cpu hike caused by 2010-07-20 update


since i tried valve's method of adding thread 3 and 1 that didn't seem to
work, i think it actually made it worst lol.

mike, since i run 8 core servers as well, I figure I would try your method
out, since you said you had some success with it. how do you set permanent
CPU affinity by commandline.. do you just add something like /CPU1 or /CPU2
to the end of the commandline? thanks

On Thu, Jul 22, 2010 at 10:13 AM, Mike Stiehm <mikesti...@gmail.com> wrote:

You would be right but for me it did fix the high CPU spike I was seeing. I
have an 8 core system and did let windows assign the affinity. everything
was nice and level as for CPU usage prior the the update. After the update
just one single instance or srcds would spike to as much as 85% (of all 8
cores) after assigning srcds just 2 cores (with 2 servers per core) I never
noticed the cpu usage go above 10%, 15% or 18% with no more network time
out's. It possible the windows version of srcds has some type of issue with
multithreading maybe it's something that only shows up with you have 8 or
more cores idk....

-----Original Message-----
From: hlds-boun...@list.valvesoftware.com
[mailto:hlds-boun...@list.valvesoftware.com] On Behalf Of Steven Hartland
Sent: Thursday, July 22, 2010 3:12 AM
To: Half-Life dedicated Win32 server mailing list
Subject: Re: [hlds] Massive TF2 server cpu hike caused by 2010-07-20 update

Yes Windows here, assigning cores wont solve high cpu load it will just
limit it :(

----- Original Message -----
From: "Mike Stiehm" <mikesti...@gmail.com>
To: "'Half-Life dedicated Win32 server mailing list'"
<hlds@list.valvesoftware.com>
Sent: Thursday, July 22, 2010 1:11 AM
Subject: Re: [hlds] Massive TF2 server cpu hike caused by 2010-07-20 update


> any of you guys on windows? I seemed to have completely fixed this on > my
> system.
>
> I was letting windows assign the SRCDS treads to CPU cores (Generally > it
> windows does a great job at this) hover when I manually assigned the
SRCDS
> treads to cpu cores all lag/cpu spikes stopped completely.. I also
believe
> the overall CPU usage dropped in 1/2 for me... Maybe we have a bug with
the
> multi treading and didn't valve update that code a few updates ago > also?


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