Another answer: you could create a process for each cpu and then pin each process to that cpu - here's an article on how to pin a process to a cpu - I think core's work the same as CPU's http://www.cyberciti.biz/tips/setting-processor-affinity-certain-task-or-process.html
On Wed, Apr 6, 2011 at 12:53 PM, Johann Vincent Paul Tagle < [email protected]> wrote: > Maybe you can have something like a wait/pause inside the loop and adjust > the wait time depending on the output of the load function described in the > link given. Or make your loop such that one instance only gives x% load > (again using waits or something), then your main script starts a loop as a > subprocess, checks the cpu load, then starts more if needed. I don't know > how you can do it such that all cores are at 70% though. > > > On Wed, Apr 6, 2011 at 12:44 PM, John Homer H Alvero > <[email protected]>wrote: > >> Thanks Johann, >> >> I can do while (1) {}; but that will only saturate one core. If I have >> 4 cores, thats only 25%. I can start another loop which will hog >> another core (setting core affinity) now on 50% but i need more >> granular control over cpu usage. >> Thanks again. >> >> >> >> On Wed, Apr 6, 2011 at 12:39 PM, Johann Vincent Paul Tagle >> <[email protected]> wrote: >> > Another reply: >> > you also may want to look at this >> > >> http://search.cpan.org/~pmorch/Parallel-Loops-0.07/lib/Parallel/Loops.pm >> > I will wait till late afternoon for more replies and compile them here >> later >> > =) >> > Johann >> > >> > On Wed, Apr 6, 2011 at 12:38 PM, Johann Vincent Paul Tagle >> > <[email protected]> wrote: >> >> >> >> I got curious and posted your question at experts-exchange.com. >> Here's >> >> one reply so far: >> >> this module may get you started >> >> >> >> >> http://search.cpan.org/~burak/Sys-Info-Base-0.73/lib/Sys/Info/Device/CPU.pm >> >> look at the load function >> >> >> >> On Wed, Apr 6, 2011 at 11:21 AM, John Homer H Alvero < >> [email protected]> >> >> wrote: >> >>> >> >>> Hello, >> >>> >> >>> How do I purposely hog CPU (in all cores) in a controlled manner? By >> >>> controlled manner I mean hogging CPU by 70% only or 80%. Thanks >> >>> _________________________________________________ >> >>> Philippine Linux Users' Group (PLUG) Mailing List >> >>> http://lists.linux.org.ph/mailman/listinfo/plug >> >>> Searchable Archives: http://archives.free.net.ph >> >> >> > >> > >> > _________________________________________________ >> > Philippine Linux Users' Group (PLUG) Mailing List >> > http://lists.linux.org.ph/mailman/listinfo/plug >> > Searchable Archives: http://archives.free.net.ph >> > >> _________________________________________________ >> Philippine Linux Users' Group (PLUG) Mailing List >> http://lists.linux.org.ph/mailman/listinfo/plug >> Searchable Archives: http://archives.free.net.ph >> > >
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