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From: | Paul Brook |
Subject: | Re: [Qemu-devel] Re: [RFC][PATCH] performance improvement for windows guests, running on top of virtio block device |
Date: | Wed, 24 Feb 2010 02:58:18 +0000 |
User-agent: | KMail/1.12.4 (Linux/2.6.32-trunk-amd64; KDE/4.3.4; x86_64; ; ) |
> Bottom halves are run at the very end of the event loop which means that > they're guaranteed to be the last thing run. idle bottom halves can be > rescheduled without causing an infinite loop and do not affect the > select timeout (which normal bottom halves do). Idle bottom halves (i.e. qemu_bh_schedule_idle) are just bugs waiting to happen, and should never be used for anything. Paul
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