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Old News
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Tue, 21 Jun 2005: Release 0.5
- Added a benchmark page using Sysbench comparing librt and libposix-aio
implementations.
- Added patches against MySQL 4.1.12 for using POSIX AIO.
- Old resources (library, kernel patches, ...) moved here.
- Fixed CFLAGS in configure.ac for detecting kernel AIO support.
- Added gcc optimization flag (-O3) in src/Makefile.am so that the library
is compiled with optimizations by default.
- Optimized completion events fetching:
In __aio_get_res, update_events is called to retrieve completion
events from the kernel via the io_getevents syscall. As io_getevents
may return more than one event from the completion queue, it makes sense to check
whether the event we're interested in has not already been retrieved and thus avoid
systematically doing a syscall.
- The POSIX Testsuite patch has been merged into posixtestsuite-1.5.1.
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Mon, 20 Jun 2005:
- Kernel patches bugfix. Use
linux-2.6.10-PAIO-0.4.1.tar.gz
In __aio_send_signal, group_send_sig_info was used which checks
kill permissions, but as we may be called from interrupt context we need to use
__group_send_sig instead.
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Thu, 12 May 2005: Release 0.4
- The aiocb data structure changed in order to match more closely
the kernel iocb. The first 64 bytes of the aiocb correspond to the iocb.
- New kernel patches are released to match those changes
(previous kernel patches won't work with this release).
- Patches for kernel 2.6.8 are no longer maintained.
- Licence changed to LGPL.
- Copyright changed to BULL.
- POSIX Testsuite patch updated.
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Wed, 16 Mar 2005: Release 0.3
- libposix-aio does not rely on libaio anymore as we were
only using the syscall wrappers it provides for kernel AIO.
Syscalls are now directly implemented in libposix-aio.
- kernel patches updated against 2.6.10 are now distributed
as a quilt patchset.
- some bug fixes.
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Wed, 22 Dec 2004:
- Release 0.2, change file descriptor properties to O_DIRECT on-the-fly and use
temporary buffer when provided buffer is not 512 byte aligned.
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Fri, 17 Dec 2004:
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