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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-04-16 10:07:49 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-04-16 10:07:49 +0100 |
| commit | 426747a871e69c0f789bbb03de7156170c120686 (patch) | |
| tree | 24f8e79aa2e8aa8b514016d7cb549e34c0aa3915 /extras/mini-os/fbfront.c | |
| parent | 724e4fd51ef8e9ca6b1f33c8fcf030c247389693 (diff) | |
| download | xen-426747a871e69c0f789bbb03de7156170c120686.tar.gz xen-426747a871e69c0f789bbb03de7156170c120686.tar.bz2 xen-426747a871e69c0f789bbb03de7156170c120686.zip | |
ioemu: drop reschedule of handle_buffered_io on I/O reqs
Rescheduling the call to handle_buffered_io costs the system call to
qemu_get_clock(), which is very expensive considering the the latency
we would like to achieve for I/O reqs, so we should avoid it.
That means that handle_buffered_io may be called as often as every
0.1s, but that's not so costly.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Diffstat (limited to 'extras/mini-os/fbfront.c')
0 files changed, 0 insertions, 0 deletions