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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Root cause of the issue that HVM guest boots slowly with pvops dom0
On 21/01/2010 09:27, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote: >> A pre-mlock()ed memory page for small (sub-page) hypercalls? Protected with >> a semaphore: failure to acquire semaphore means take slow path. Have all >> hypercallers in libxc launder their data buffers through a new interface >> that tries to grab and copy into the pre-allocated buffer. > > I'll sort out a trial patch for this myself. How does the attached patch work for you? It ought to get you the same speedup as your hack. -- Keir Attachment:
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