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Re: [Xen-devel] [PATCH 00/12] cpumask handling scalability improvements
| To: | Jan Beulich <JBeulich@xxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH 00/12] cpumask handling scalability improvements |
| From: | Keir Fraser <keir@xxxxxxx> |
| Date: | Thu, 20 Oct 2011 17:04:20 +0100 |
| Cc: | Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Thu, 20 Oct 2011 09:08:59 -0700 |
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| Thread-topic: | [Xen-devel] [PATCH 00/12] cpumask handling scalability improvements |
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On 20/10/2011 16:19, "Jan Beulich" <JBeulich@xxxxxxxx> wrote: >>> 06: allow efficient allocation of multiple CPU masks at once >> >> That is utterly hideous and for insignificant saving. > > I was afraid you would say that, and I'm not fully convinced > either. But I wanted to give it a try to see how bad it is. The > more significant saving here really comes from not allocating > the CPU masks at all for unused irq_desc-s. Aren't we planning to dynamically allocate irq_desc-s? That would seem the nicer solution here. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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