Recent Features
| |||||||||||||
InterestingInterestingPosted Dec 20, 2010 14:39 UTC (Mon) by quotemstr (subscriber, #45331)In reply to: Interesting by rilder Parent article: Unmapped page cache control
It's not only possible, but trivial: IO from guests goes through the hypervisor, which can use simple uncached file IO (e.g., O_DIRECT) to service these requests. Host IO goes through the normal path and uses normal buffering.
(Log in to post comments)
Interesting Posted Jan 3, 2011 5:17 UTC (Mon) by balbir_singh (subscriber, #34142) [Link]
Yes, it is possible, but there have been reports of large overheads in doing so. Please see the email from Chris at http://www.mail-archive.com/kvm@vger.kernel.org/msg30821.... for throughput issues.
|
|||||||||||||