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Comparing IO-AIO/Changes (file contents):
Revision 1.135 by root, Sun Dec 2 21:51:37 2007 UTC vs.
Revision 1.219 by root, Sat Jan 9 10:03:09 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 - (libeio) more fixes for the freebsd/apple sendfile - broken by
12 manpage standards, but apparently correct accoridng to actual
13 kernel sources.
14
153.5 Thu Jan 7 21:25:04 CET 2010
16 - (liebio) fix freebsd sendfile (Vanilla Hsu).
17 - (libeio) also fix darwin sendfile that suffered from a similar bug.
18 - add aio_statvfs as interface to statvfs/fstatvfs.
19 - work around buggy symlink() on cygwin in the testsuite.
20 - wtf. freebsd-8.0 actually passes the testsuite! I knew
21 they could implement fork and semaphores one day! cheers!
22
233.4 Sat Jan 2 15:13:04 CET 2010
24 - (libeio) max_poll_time was not properly converted to ticks.
25 - clarify cancel_subs description.
26 - IO::AIO::sendfile did not actually return the return value
27 from the sendfile call.
28 - implement aio_msync, aio_mtouch.
29 - (libeio) tentatively support darwin in sendfile.
30
313.31 Thu Nov 12 02:14:29 CET 2009
32 - fix result status documentation of aio_copy, aio_move.
33 - speed up object creation considerably by avoiding
34 hash lookups.
35
363.3 Wed Aug 5 13:52:58 CEST 2009
37 - use common::sense.
38 - use common schmorp.h header.
39 - allow integers (file descriptors) in addition to file handles.
40 - take advantage of linux' eventfd (but it seems slower on smp?).
41 - use poll not select on posix platforms.
42
433.261 Wed Jul 1 10:11:51 CEST 2009
44 - more 0S X workarounds (patch by Tokuhiro Matsuno).
45
463.26 Tue Jun 30 09:33:26 CEST 2009
47 - 0S X of course claims to be posix 2008 but lacks posix_fadvise.
48 try to work around this horribly broken OS in a somewhat hackish
49 way. might help other os's too.
50
513.25 Sat Jun 27 05:18:26 CEST 2009
52 - added IO::AIO::fadvise and IO::AIO::sendfile.
53 - (libeio) replaced quicksort+insertion sort by a tuned radix
54 sort + insertion sort, resulting in comparable runtime (usually
55 faster) to the old version, but without any ill side effects on
56 degenerated (for quicksort) data.
57 - (libeio) correctly sort dirs by inodes if we have perfect type
58 knowledge and DIRS_FIRST is used.
59 - (libeio) internally the wrong DT_* constants were used, but no
60 known system has differing EIO_DT_*/DT_* values, so not an issue.
61 - removed a (harmless) assert that was left over on the code
62 but should not have been.
63 - use more correct types (change IO length from IV to VAL64,
64 which makes a difference on systems without 64 bit perls).
65
663.23 Sat Jun 13 16:57:58 CEST 2009
67 - fix off-by-one bug in aio_readdir that was introduced in the
68 rushed 3.22 release.
69
703.22 Sat Jun 13 15:32:40 CEST 2009
71 - speed up readdirx sort algorithm slightly.
72 - bin/treescan was missing from distro tarball.
73
743.21 Fri Jun 12 18:45:53 CEST 2009
75 - new options --dirs and --files for treescan.
76 - install bin/treescan by default.
77 - (libeio) aio_readdir can now be cancelled while executing.
78 - fix a printf format string for 64 bit systems (could lead
79 to problems on big endian 64 bit systems).
80 - do not use qsort() but our own algorithm: glibc initialises
81 the whole locale and I/O subsystem inside qsort, causing
82 a stack overflow on 32 bit machines. The new sort uses much less
83 stack and is more than twice as fast in typical situations.
84
853.2 Sun Jun 7 20:30:05 CEST 2009
86 - (libeio) pwrite emulation was even more flawed than intended and did
87 not restore the file offset.
88 - add aio_readdirx, which can return inode and filetype and sort
89 the names in various ways.
90 - unfortunately, utime, chmod, chown on an open file that has just
91 been written can easily block, which caused aio_copy to block the
92 process. no more!
93 - no longer rely on dst path in aio_copy when futime is available.
94
953.19 Tue Apr 21 22:05:21 CEST 2009
96 - more perl 5.10 workarounds for aio_read and write.
97 - aio_write no longer modifies the sv (if possible).
98 - aio_read now works correctly with magic values.
99
1003.18 Sun Apr 19 21:17:32 CEST 2009
101 - better diagnostics when some aio_* functions get passed an illegal fh.
102 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
103
1043.17 Thu Nov 20 08:45:36 CET 2008
105 - (libeio) added aio_sync_file_range (untested).
106 - add aio_busy to @IO::AIO::AIO_REQ.
107
1083.16 Wed Oct 22 18:28:01 CEST 2008
109 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
110 part to improve portability to perl 5.8 (reported by szymon).
111
1123.15 Mon Oct 13 00:39:55 CEST 2008
113 - automatic removal of feeders was broken.
114 - (libeio) use a more robust method to detect whether a feeder
115 has added something to the group or not.
116
1173.1 Thu Oct 2 13:34:40 CEST 2008
118 - pre-deref the passed callback object, for increased speed
119 and decreased memory usage.
120 - call on_next_submit callback even for aio_group - impact unknown,
121 but seems more correct.
122 - $req->cb now returns the original callback.
123 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
124 requiring a thread switch.
125 - (libeio) status code of aio_futime and aio_utime was always passed 0.
126 - do some other ยต-optimisations.
127
1283.07 Sat Aug 2 16:06:13 CEST 2008
129 - do not include LIBS in autoconf tests.
130
1313.06 Tue Jul 15 12:41:32 CEST 2008
132 - move preadwritelock definition before it's first reference,
133 to make it compile again on broken platforms (they still exist)
134 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
135
1363.05 Thu Jun 19 23:23:52 CEST 2008
137 - work around perl overriding readdir etc. with thread-unsafe
138 (sic!) versions.
139
1403.04 Wed Jun 18 01:35:38 CEST 2008
141 - (libeio) fix eio_mknod, which confused it's arguments.
142 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
143 is stupid.
144 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
145 - (libeio) fix a bug that could potentially cause IO::AIO
146 not to get initialised properly.
147
1483.03 Thu May 29 05:33:30 CEST 2008
149 - (libeio) correctly call pthread_attr_destroy ().
150 - (libeio) work around broken bsd headers once more.
151 - reduce shared library size again by not including wrappers.
152 - max_outstanding could cause poll to enter a busy-waiting loop.
153 - document the new IO::AIO::poll_cb result value.
154
1553.02 Mon May 12 02:32:02 CEST 2008
156 - fix a memory leak on aio_readlink.
157 - bring back working fchmod.
158 - nop and busy now set result to 0.
159 - set errno to ENOMEM when allocation fails.
160
1613.01 Sun May 11 03:07:03 CEST 2008
162 - (libeio) make it compile on systems without readahead or readdir_r.
163 - (libeio) improve configure check for readahead availability.
164 - do not try to link against -lrt.
165 - use a separate configure script for IO::AIO (not the libeio one).
166
1673.0 Sun May 11 00:57:14 CEST 2008
168 - added bin/treescan to the distribution.
169 - switched to using libeio.
170 - LOTS OF INCOMPATIBLE CHANGES:
171 - remove signal functionality, it is not worth the effort.
172 - max_outstanding no longer returns the previous number of requests.
173 - poll_cb no longer returns number of requests.
174
1752.62 Sat Apr 26 13:59:33 CEST 2008
176 - port to solaris perls configured for old posix
177 (analysed by Jost Krieger).
178 - keep a reference to the perl filehandle object in aio_close,
179 so it doesn't get closed prematurely, leading to ugly races.
180
1812.61 Wed Apr 16 18:45:02 CEST 2008
182 - fix treescan output duplication and improve output ordering.
183 also display files given on the commandline.
184 - use a different algorithm for aio_close that is faster
185 and probably has even lower chances of blocking.
186 - do our own stack memory management for threads - linux
187 allocates outrageous amounts of VM (not so bad unless you
188 use mlockall...), which severely limits the number of threads
189 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
190 and 4096 * sizeof (long) (usually this is 16..64k).
191
1922.6 Sun Mar 30 08:28:11 CEST 2008
10 - added aio_sync. 193 - added aio_sync.
11 - added aio_pathsync. 194 - added aio_pathsync.
195 - fix prototypes of (void) functions.
12 196
132.51 Sat Oct 6 16:04:54 CEST 2007 1972.51 Sat Oct 6 16:04:54 CEST 2007
14 - perlio isn't generally threadsafe, so aio_close could not work reliably. 198 - perlio isn't generally threadsafe, so aio_close could not work reliably.
15 aio_close now tries a safe hack that might not be that asynchronous 199 aio_close now tries a safe hack that might not be that asynchronous
16 (see the manpage for details). 200 (see the manpage for details).

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