On 08/24/2010 10:52 AM, Gleb Natapov wrote:
This nice cache needs to be outside apf to reduce complexity for
reviewers and since it is useful for others.
Would be good to have memslot-cached kvm_put_guest() and kvm_get_guest().
Will look into it.
In the meantime, you can just drop the caching.
+ struct kvm_arch_async_pf *arch)
+{
+ struct kvm_async_pf *work;
+
+ if (vcpu->async_pf_queued>= ASYNC_PF_PER_VCPU)
+ return 0;
100 == too high. At 16 vcpus, this allows 1600 kernel threads to
wait for I/O.
Number of kernel threads are limited by other means. Slow work subsystem
has its own knobs to tune that. Here we limit how much slow work items
can be queued per vcpu.
OK.
Would have been best if we could ask for a page to be paged in
asynchronously.
You mean to have core kernel facility for that? I agree it would be
nice, but much harder.
Yes, that's what I meant.
--
error compiling committee.c: too many arguments to function
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