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Comparing IO-AIO/Changes (file contents):
Revision 1.134 by root, Sun Dec 2 20:54:33 2007 UTC vs.
Revision 1.215 by root, Thu Jan 7 18:08:21 2010 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: fix setsig
7TODO: 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
8TODO: fallocate, if it wouldn't be so useless.
9TODO: IO::AIO::mmap? aio_mincore?
8 10
92.6 11 - (liebio) fix freebsd sendfile (Vanilla Hsu).
12 - (libeio) also fix darwin sendfile that suffered from a similar bug.
13 - add aio_statvfs as interface to statvfs/fstatvfs.
14
153.4 Sat Jan 2 15:13:04 CET 2010
16 - (libeio) max_poll_time was not properly converted to ticks.
17 - clarify cancel_subs description.
18 - IO::AIO::sendfile did not actually return the return value
19 from the sendfile call.
20 - implement aio_msync, aio_mtouch.
21 - (libeio) tentatively support darwin in sendfile.
22
233.31 Thu Nov 12 02:14:29 CET 2009
24 - fix result status documentation of aio_copy, aio_move.
25 - speed up object creation considerably by avoiding
26 hash lookups.
27
283.3 Wed Aug 5 13:52:58 CEST 2009
29 - use common::sense.
30 - use common schmorp.h header.
31 - allow integers (file descriptors) in addition to file handles.
32 - take advantage of linux' eventfd (but it seems slower on smp?).
33 - use poll not select on posix platforms.
34
353.261 Wed Jul 1 10:11:51 CEST 2009
36 - more 0S X workarounds (patch by Tokuhiro Matsuno).
37
383.26 Tue Jun 30 09:33:26 CEST 2009
39 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
40 try to work around this horribly broken OS in a somewhat hackish
41 way. might help other os's too.
42
433.25 Sat Jun 27 05:18:26 CEST 2009
44 - added IO::AIO::fadvise and IO::AIO::sendfile.
45 - (libeio) replaced quicksort+insertion sort by a tuned radix
46 sort + insertion sort, resulting in comparable runtime (usually
47 faster) to the old version, but without any ill side effects on
48 degenerated (for quicksort) data.
49 - (libeio) correctly sort dirs by inodes if we have perfect type
50 knowledge and DIRS_FIRST is used.
51 - (libeio) internally the wrong DT_* constants were used, but no
52 known system has differing EIO_DT_*/DT_* values, so not an issue.
53 - removed a (harmless) assert that was left over on the code
54 but should not have been.
55 - use more correct types (change IO length from IV to VAL64,
56 which makes a difference on systems without 64 bit perls).
57
583.23 Sat Jun 13 16:57:58 CEST 2009
59 - fix off-by-one bug in aio_readdir that was introduced in the
60 rushed 3.22 release.
61
623.22 Sat Jun 13 15:32:40 CEST 2009
63 - speed up readdirx sort algorithm slightly.
64 - bin/treescan was missing from distro tarball.
65
663.21 Fri Jun 12 18:45:53 CEST 2009
67 - new options --dirs and --files for treescan.
68 - install bin/treescan by default.
69 - (libeio) aio_readdir can now be cancelled while executing.
70 - fix a printf format string for 64 bit systems (could lead
71 to problems on big endian 64 bit systems).
72 - do not use qsort() but our own algorithm: glibc initialises
73 the whole locale and I/O subsystem inside qsort, causing
74 a stack overflow on 32 bit machines. The new sort uses much less
75 stack and is more than twice as fast in typical situations.
76
773.2 Sun Jun 7 20:30:05 CEST 2009
78 - (libeio) pwrite emulation was even more flawed than intended and did
79 not restore the file offset.
80 - add aio_readdirx, which can return inode and filetype and sort
81 the names in various ways.
82 - unfortunately, utime, chmod, chown on an open file that has just
83 been written can easily block, which caused aio_copy to block the
84 process. no more!
85 - no longer rely on dst path in aio_copy when futime is available.
86
873.19 Tue Apr 21 22:05:21 CEST 2009
88 - more perl 5.10 workarounds for aio_read and write.
89 - aio_write no longer modifies the sv (if possible).
90 - aio_read now works correctly with magic values.
91
923.18 Sun Apr 19 21:17:32 CEST 2009
93 - better diagnostics when some aio_* functions get passed an illegal fh.
94 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
95
963.17 Thu Nov 20 08:45:36 CET 2008
97 - (libeio) added aio_sync_file_range (untested).
98 - add aio_busy to @IO::AIO::AIO_REQ.
99
1003.16 Wed Oct 22 18:28:01 CEST 2008
101 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
102 part to improve portability to perl 5.8 (reported by szymon).
103
1043.15 Mon Oct 13 00:39:55 CEST 2008
105 - automatic removal of feeders was broken.
106 - (libeio) use a more robust method to detect whether a feeder
107 has added something to the group or not.
108
1093.1 Thu Oct 2 13:34:40 CEST 2008
110 - pre-deref the passed callback object, for increased speed
111 and decreased memory usage.
112 - call on_next_submit callback even for aio_group - impact unknown,
113 but seems more correct.
114 - $req->cb now returns the original callback.
115 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
116 requiring a thread switch.
117 - (libeio) status code of aio_futime and aio_utime was always passed 0.
118 - do some other ยต-optimisations.
119
1203.07 Sat Aug 2 16:06:13 CEST 2008
121 - do not include LIBS in autoconf tests.
122
1233.06 Tue Jul 15 12:41:32 CEST 2008
124 - move preadwritelock definition before it's first reference,
125 to make it compile again on broken platforms (they still exist)
126 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
127
1283.05 Thu Jun 19 23:23:52 CEST 2008
129 - work around perl overriding readdir etc. with thread-unsafe
130 (sic!) versions.
131
1323.04 Wed Jun 18 01:35:38 CEST 2008
133 - (libeio) fix eio_mknod, which confused it's arguments.
134 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
135 is stupid.
136 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
137 - (libeio) fix a bug that could potentially cause IO::AIO
138 not to get initialised properly.
139
1403.03 Thu May 29 05:33:30 CEST 2008
141 - (libeio) correctly call pthread_attr_destroy ().
142 - (libeio) work around broken bsd headers once more.
143 - reduce shared library size again by not including wrappers.
144 - max_outstanding could cause poll to enter a busy-waiting loop.
145 - document the new IO::AIO::poll_cb result value.
146
1473.02 Mon May 12 02:32:02 CEST 2008
148 - fix a memory leak on aio_readlink.
149 - bring back working fchmod.
150 - nop and busy now set result to 0.
151 - set errno to ENOMEM when allocation fails.
152
1533.01 Sun May 11 03:07:03 CEST 2008
154 - (libeio) make it compile on systems without readahead or readdir_r.
155 - (libeio) improve configure check for readahead availability.
156 - do not try to link against -lrt.
157 - use a separate configure script for IO::AIO (not the libeio one).
158
1593.0 Sun May 11 00:57:14 CEST 2008
160 - added bin/treescan to the distribution.
161 - switched to using libeio.
162 - LOTS OF INCOMPATIBLE CHANGES:
163 - remove signal functionality, it is not worth the effort.
164 - max_outstanding no longer returns the previous number of requests.
165 - poll_cb no longer returns number of requests.
166
1672.62 Sat Apr 26 13:59:33 CEST 2008
168 - port to solaris perls configured for old posix
169 (analysed by Jost Krieger).
170 - keep a reference to the perl filehandle object in aio_close,
171 so it doesn't get closed prematurely, leading to ugly races.
172
1732.61 Wed Apr 16 18:45:02 CEST 2008
174 - fix treescan output duplication and improve output ordering.
175 also display files given on the commandline.
176 - use a different algorithm for aio_close that is faster
177 and probably has even lower chances of blocking.
178 - do our own stack memory management for threads - linux
179 allocates outrageous amounts of VM (not so bad unless you
180 use mlockall...), which severely limits the number of threads
181 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
182 and 4096 * sizeof (long) (usually this is 16..64k).
183
1842.6 Sun Mar 30 08:28:11 CEST 2008
10 - added aio_sync. 185 - added aio_sync.
186 - added aio_pathsync.
187 - fix prototypes of (void) functions.
11 188
122.51 Sat Oct 6 16:04:54 CEST 2007 1892.51 Sat Oct 6 16:04:54 CEST 2007
13 - perlio isn't generally threadsafe, so aio_close could not work reliably. 190 - perlio isn't generally threadsafe, so aio_close could not work reliably.
14 aio_close now tries a safe hack that might not be that asynchronous 191 aio_close now tries a safe hack that might not be that asynchronous
15 (see the manpage for details). 192 (see the manpage for details).

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