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Re: [Xen-devel] Re: Accounting in Credit Scheduler
| To: | "rahul gundecha" <rahoolgundecha@xxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Re: Accounting in Credit Scheduler |
| From: | "Diwaker Gupta" <diwaker.lists@xxxxxxxxx> |
| Date: | Mon, 9 Apr 2007 14:04:21 -0700 |
| Cc: | ncmike@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Mon, 09 Apr 2007 14:03:09 -0700 |
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One more curiousity is how often a timer routine is called & how often scheduling code? It may be configurable interval as well, but then whats default value. I guess timer is called more frequently & call to scheduling routine is made less frquently and is called from timer itself. Can I get pointer to some reference where I will get to know how exactly this mechanism works. May be digging through code will be expensive option so I want to avoid it for a moment. Your best bet is to study the code. The scheduler code is fairly readable. IIRC, the accounting code happens in two parts -- every 10ms, measurements are made, but only every 30ms the measurements are used to update accounting information. Read xen/common/sched_credit.c Diwaker -- Web/Blog/Gallery: http://floatingsun.net/blog _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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