Wei Kong
2009-Aug-18 02:42 UTC
[Xen-devel] [PATCH] tapdisk:check O_DIRECT on hole file for performance
Although tapdisk has been instead of tapdisk-ioemu, but it still used on some old xen-3.2. So fix a performance problem here. -- Kernel aio will retry when encounter a block doesn''t allocated, then do async io, but O_DIRECT flag was there, so io_wait on sync data. And clean a little code style. Signed-off-by: Wei Kong <weikong.cn@gmail.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Reasonably Related Threads
- A little confusion between "tapdisk" and "tapdisk-ioemu"
- [PATCH] stubdom: do not build tapdisk as it is not supposed to build and we don''t need it
- [PATCH] blktap: Automatically start tapdisk-ioemu on demand
- ioemu in config file and O_DIRECT option
- Tapdisk processes being left behind when hvm domu's migrate/shutdown
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