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Comparing IO-AIO/Changes (file contents):
Revision 1.144 by root, Sat May 10 19:25:33 2008 UTC vs.
Revision 1.203 by root, Wed Jul 15 01:36:04 2009 UTC

1Revision history for IO::AIO 1Revision history for IO::AIO
2 2
3TODO: better autoconf.pm that can return LIBS etc. 3TODO: better autoconf.pm that can return LIBS etc.
4TODO: aio_cptree/mvtree 4TODO: aio_cptree/mvtree
5TODO: reduce condvar fairness: schedule hot-cache-threads first? 5TODO: reduce condvar fairness: schedule hot-cache-threads first?
6TODO: splice/tee/vmsplice/sync_file_range? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/) 6TODO: splice/tee/vmsplice? (http://kerneltrap.org/node/6505 http://lwn.net/Articles/178199/)
7TODO: aio_fcntl, at least for file-locking 7TODO: aio_fcntl, at least for file-locking
8TODO: fallocate, if it wouldn't be so useless.
8 9
93.0 10 - use common::sense.
10 - lots of incompatible changes: 11 - use common schmorp.h header.
12 - allow integers (file descriptors) in addition to file handles.
13 - take advantage of linux' eventfd (but it seems slower on smp?).
14 - use poll not seelct on posix platforms.
15
163.261 Wed Jul 1 10:11:51 CEST 2009
17 - more OS X workarounds (patch by Tokuhiro Matsuno).
18
193.26 Tue Jun 30 09:33:26 CEST 2009
20 - os x of course claims posix 2008 but lacks posix_fadvise. try to work
21 around this horribly broken OS in a somewhat hackish way. might help
22 other os's too.
23
243.25 Sat Jun 27 05:18:26 CEST 2009
25 - added IO::AIO::fadvise and IO::AIO::sendfile.
26 - (libeio) replaced quicksort+insertion sort by a tuned radix
27 sort + insertion sort, resulting in comparable runtime (usually
28 faster) to the old version, but without any ill side effects on
29 degenerated (for quicksort) data.
30 - (libeio) correctly sort dirs by inodes if we have perfect type
31 knowledge and DIRS_FIRST is used.
32 - (libeio) internally the wrong DT_* constants were used, but no
33 known system has differing EIO_DT_*/DT_* values, so not an issue.
34 - removed a (harmless) assert that was left over on the code
35 but should not have been.
36 - use more correct types (change IO length from IV to VAL64,
37 which makes a difference on systems without 64 bit perls).
38
393.23 Sat Jun 13 16:57:58 CEST 2009
40 - fix off-by-one bug in aio_readdir that was introduced in the
41 rushed 3.22 release.
42
433.22 Sat Jun 13 15:32:40 CEST 2009
44 - speed up readdirx sort algorithm slightly.
45 - bin/treescan was missing from distro tarball.
46
473.21 Fri Jun 12 18:45:53 CEST 2009
48 - new options --dirs and --files for treescan.
49 - install bin/treescan by default.
50 - (libeio) aio_readdir can now be cancelled while executing.
51 - fix a printf format string for 64 bit systems (could lead
52 to problems on big endian 64 bit systems).
53 - do not use qsort() but our own algorithm: glibc initialises
54 the whole locale and I/O subsystem inside qsort, causing
55 a stack overflow on 32 bit machines. The new sort uses much less
56 stack and is more than twice as fast in typical situations.
57
583.2 Sun Jun 7 20:30:05 CEST 2009
59 - (libeio) pwrite emulation was even more flawed than intended and did
60 not restore the file offset.
61 - add aio_readdirx, which can return inode and filetype and sort
62 the names in various ways.
63 - unfortunately, utime, chmod, chown on an open file that has just
64 been written can easily block, which caused aio_copy to block the
65 process. no more!
66 - no longer rely on dst path in aio_copy when futime is available.
67
683.19 Tue Apr 21 22:05:21 CEST 2009
69 - more perl 5.10 workarounds for aio_read and write.
70 - aio_write no longer modifies the sv (if possible).
71 - aio_read now works correctly with magic values.
72
733.18 Sun Apr 19 21:17:32 CEST 2009
74 - better diagnostics when some aio_* functions get passed an illegal fh.
75 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
76
773.17 Thu Nov 20 08:45:36 CET 2008
78 - (libeio) added aio_sync_file_range (untested).
79 - add aio_busy to @IO::AIO::AIO_REQ.
80
813.16 Wed Oct 22 18:28:01 CEST 2008
82 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
83 part to improve portability to perl 5.8 (reported by szymon).
84
853.15 Mon Oct 13 00:39:55 CEST 2008
86 - automatic removal of feeders was broken.
87 - (libeio) use a more robust method to detect whether a feeder
88 has added something to the group or not.
89
903.1 Thu Oct 2 13:34:40 CEST 2008
91 - pre-deref the passed callback object, for increased speed
92 and decreased memory usage.
93 - call on_next_submit callback even for aio_group - impact unknown,
94 but seems more correct.
95 - $req->cb now returns the original callback.
96 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
97 requiring a thread switch.
98 - (libeio) status code of aio_futime and aio_utime was always passed 0.
99 - do some other ยต-optimisations.
100
1013.07 Sat Aug 2 16:06:13 CEST 2008
102 - do not include LIBS in autoconf tests.
103
1043.06 Tue Jul 15 12:41:32 CEST 2008
105 - move preadwritelock definition before it's first reference,
106 to make it compile again on broken platforms (they still exist)
107 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
108
1093.05 Thu Jun 19 23:23:52 CEST 2008
110 - work around perl overriding readdir etc. with thread-unsafe
111 (sic!) versions.
112
1133.04 Wed Jun 18 01:35:38 CEST 2008
114 - (libeio) fix eio_mknod, which confused it's arguments.
115 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
116 is stupid.
117 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
118 - (libeio) fix a bug that could potentially cause IO::AIO
119 not to get initialised properly.
120
1213.03 Thu May 29 05:33:30 CEST 2008
122 - (libeio) correctly call pthread_attr_destroy ().
123 - (libeio) work around broken bsd headers once more.
124 - reduce shared library size again by not including wrappers.
125 - max_outstanding could cause poll to enter a busy-waiting loop.
126 - document the new IO::AIO::poll_cb result value.
127
1283.02 Mon May 12 02:32:02 CEST 2008
129 - fix a memory leak on aio_readlink.
130 - bring back working fchmod.
131 - nop and busy now set result to 0.
132 - set errno to ENOMEM when allocation fails.
133
1343.01 Sun May 11 03:07:03 CEST 2008
135 - (libeio) make it compile on systems without readahead or readdir_r.
136 - (libeio) improve configure check for readahead availability.
137 - do not try to link against -lrt.
138 - use a separate configure script for IO::AIO (not the libeio one).
139
1403.0 Sun May 11 00:57:14 CEST 2008
141 - added bin/treescan to the distribution.
142 - switched to using libeio.
143 - LOTS OF INCOMPATIBLE CHANGES:
11 - remove signal functionality, it is not worth the effort. 144 - remove signal functionality, it is not worth the effort.
12 - max_outstanding no longer returns the previous number of requests. 145 - max_outstanding no longer returns the previous number of requests.
13 - poll_cb no longer returns number of requests. 146 - poll_cb no longer returns number of requests.
14 147
152.62 Sat Apr 26 13:59:33 CEST 2008 1482.62 Sat Apr 26 13:59:33 CEST 2008
16 - port to solaris perls configured for old posix 149 - port to solaris perls configured for old posix
17 (analysed by Jost Krieger). 150 (analysed by Jost Krieger).
18 - keep a reference to the perl filehandle object in aio_close, 151 - keep a reference to the perl filehandle object in aio_close,

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