ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/Changes
(Generate patch)

Comparing IO-AIO/Changes (file contents):
Revision 1.124 by root, Fri Jun 1 13:25:51 2007 UTC vs.
Revision 1.197 by root, Wed Jun 17 06:33:07 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: 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.
8 9
92.4 103.25
10 - fix aio_busy w.r.t. fractional delays. 11 - added IO::AIO::fadvise and IO::AIO::sendfile.
11 - add aio_chmod, aio_chown, aio_utime (linux successfully demonstrated 12 - (libeio) replaced quicksort+insertion sort by a tuned radix
13 sort + insertion sort, resulting in comparable runtime (usually
14 faster) to the old version, but without any ill side effects on
15 degenerated (for quicksort) data.
16 - (libeio) correctly sort dirs by inodes if we have perfect type
17 knowledge and DIRS_FIRST is used.
18 - (libeio) internally the wrong DT_* constants were used, but no
19 known system has differing EIO_DT_*/DT_* values, so not an issue.
20 - removed a (harmless) assert that was left over on the code
21 but should not have been.
22 - use more correct types (change IO length from IV to VAL64,
23 which makes a difference on systems without 64 bit perls).
24
253.23 Sat Jun 13 16:57:58 CEST 2009
26 - fix off-by-one bug in aio_readdir that was introduced in the
27 rushed 3.22 release.
28
293.22 Sat Jun 13 15:32:40 CEST 2009
30 - speed up readdirx sort algorithm slightly.
31 - bin/treescan was missing from distro tarball.
32
333.21 Fri Jun 12 18:45:53 CEST 2009
34 - new options --dirs and --files for treescan.
35 - install bin/treescan by default.
36 - (libeio) aio_readdir can now be cancelled while executing.
37 - fix a printf format string for 64 bit systems (could lead
38 to problems on big endian 64 bit systems).
39 - do not use qsort() but our own algorithm: glibc initialises
40 the whole locale and I/O subsystem inside qsort, causing
41 a stack overflow on 32 bit machines. The new sort uses much less
42 stack and is more than twice as fast in typical situations.
43
443.2 Sun Jun 7 20:30:05 CEST 2009
45 - (libeio) pwrite emulation was even more flawed than intended and did
46 not restore the file offset.
47 - add aio_readdirx, which can return inode and filetype and sort
48 the names in various ways.
49 - unfortunately, utime, chmod, chown on an open file that has just
50 been written can easily block, which caused aio_copy to block the
51 process. no more!
52 - no longer rely on dst path in aio_copy when futime is available.
53
543.19 Tue Apr 21 22:05:21 CEST 2009
55 - more perl 5.10 workarounds for aio_read and write.
56 - aio_write no longer modifies the sv (if possible).
57 - aio_read now works correctly with magic values.
58
593.18 Sun Apr 19 21:17:32 CEST 2009
60 - better diagnostics when some aio_* functions get passed an illegal fh.
61 - try to avoid crashes due to incompatible 5.10 API changes. grmbl.
62
633.17 Thu Nov 20 08:45:36 CET 2008
64 - (libeio) added aio_sync_file_range (untested).
65 - add aio_busy to @IO::AIO::AIO_REQ.
66
673.16 Wed Oct 22 18:28:01 CEST 2008
68 - use SvREFCNT_inc instead of SvREFCNT_inc_NN in a non-speed critical
69 part to improve portability to perl 5.8 (reported by szymon).
70
713.15 Mon Oct 13 00:39:55 CEST 2008
72 - automatic removal of feeders was broken.
73 - (libeio) use a more robust method to detect whether a feeder
74 has added something to the group or not.
75
763.1 Thu Oct 2 13:34:40 CEST 2008
77 - pre-deref the passed callback object, for increased speed
78 and decreased memory usage.
79 - call on_next_submit callback even for aio_group - impact unknown,
80 but seems more correct.
81 - $req->cb now returns the original callback.
82 - (libeio) pass EIO_GROUP/aio_group requests through the queue without
83 requiring a thread switch.
84 - (libeio) status code of aio_futime and aio_utime was always passed 0.
85 - do some other ยต-optimisations.
86
873.07 Sat Aug 2 16:06:13 CEST 2008
88 - do not include LIBS in autoconf tests.
89
903.06 Tue Jul 15 12:41:32 CEST 2008
91 - move preadwritelock definition before it's first reference,
92 to make it compile again on broken platforms (they still exist)
93 or badly cofngiured perls (redhat...), reported by Rob Bloodgood.
94
953.05 Thu Jun 19 23:23:52 CEST 2008
96 - work around perl overriding readdir etc. with thread-unsafe
97 (sic!) versions.
98
993.04 Wed Jun 18 01:35:38 CEST 2008
100 - (libeio) fix eio_mknod, which confused it's arguments.
101 - (libeio) do not use readdir_r, as Ulrich Drepper pointed out that this
102 is stupid.
103 - (libeio) fix eio__readahead prototype, patch by Jost Krieger.
104 - (libeio) fix a bug that could potentially cause IO::AIO
105 not to get initialised properly.
106
1073.03 Thu May 29 05:33:30 CEST 2008
108 - (libeio) correctly call pthread_attr_destroy ().
109 - (libeio) work around broken bsd headers once more.
110 - reduce shared library size again by not including wrappers.
111 - max_outstanding could cause poll to enter a busy-waiting loop.
112 - document the new IO::AIO::poll_cb result value.
113
1143.02 Mon May 12 02:32:02 CEST 2008
115 - fix a memory leak on aio_readlink.
116 - bring back working fchmod.
117 - nop and busy now set result to 0.
118 - set errno to ENOMEM when allocation fails.
119
1203.01 Sun May 11 03:07:03 CEST 2008
121 - (libeio) make it compile on systems without readahead or readdir_r.
122 - (libeio) improve configure check for readahead availability.
123 - do not try to link against -lrt.
124 - use a separate configure script for IO::AIO (not the libeio one).
125
1263.0 Sun May 11 00:57:14 CEST 2008
127 - added bin/treescan to the distribution.
128 - switched to using libeio.
129 - LOTS OF INCOMPATIBLE CHANGES:
130 - remove signal functionality, it is not worth the effort.
131 - max_outstanding no longer returns the previous number of requests.
132 - poll_cb no longer returns number of requests.
133
1342.62 Sat Apr 26 13:59:33 CEST 2008
135 - port to solaris perls configured for old posix
136 (analysed by Jost Krieger).
137 - keep a reference to the perl filehandle object in aio_close,
138 so it doesn't get closed prematurely, leading to ugly races.
139
1402.61 Wed Apr 16 18:45:02 CEST 2008
141 - fix treescan output duplication and improve output ordering.
142 also display files given on the commandline.
143 - use a different algorithm for aio_close that is faster
144 and probably has even lower chances of blocking.
145 - do our own stack memory management for threads - linux
146 allocates outrageous amounts of VM (not so bad unless you
147 use mlockall...), which severely limits the number of threads
148 on 32-bit arches: stack size is the larger of PTHREAD_STACK_MIN
149 and 4096 * sizeof (long) (usually this is 16..64k).
150
1512.6 Sun Mar 30 08:28:11 CEST 2008
152 - added aio_sync.
153 - added aio_pathsync.
154 - fix prototypes of (void) functions.
155
1562.51 Sat Oct 6 16:04:54 CEST 2007
157 - perlio isn't generally threadsafe, so aio_close could not work reliably.
158 aio_close now tries a safe hack that might not be that asynchronous
159 (see the manpage for details).
160 - discard callback return values as to not grow the stack endlessly
161 when poll_cb handles many requests without returning.
162 - minor code cleanups.
163
1642.5 Thu Oct 4 14:49:08 CEST 2007
165 - replaced _fd2fh with faster xs code.
166 - aio_close will now try to do "the right thing" and thus might
167 work sensibly for the very first time.
168
1692.41 Mon Sep 24 21:28:21 CEST 2007
170 - after fork, invest some work to make sure that the poll_fileno
171 stays stable (by dup2'ing the new fd over the old one), to make
172 it easier for programs/libs that don't control their forking
173 behaviour and cannot recreate their watchers.
174
1752.4 Sun Aug 5 18:44:22 CEST 2007
176 - add aio_truncate, aio_chmod, aio_chown, aio_utime (linux
12 that you can block on futimes...). 177 successfully demonstrated that you can block on futimes...).
13 - allow undef as fileoffset for aio_read/write and use read/write(2) 178 - allow undef as fileoffset for aio_read/write and use read/write(2)
14 internally (useful for sockets or O_APPEND handles). 179 internally (useful for sockets or O_APPEND handles).
180 - allow undef for length in aio_write.
181 - negative dataoffsets work as expected now in aio_read/aio_write.
15 - use NV instead of UV for 32 bit perls and file offsets, as NVs 182 - use NV instead of UV for 32 bit perls and file offsets, as NVs
16 have a large range then. 183 have a larger range then.
17 - shared code between BDB and IO::AIO. 184 - shared code between BDB and IO::AIO.
185 - aio_busy was completely broken. now fixed.
186 - readahead emulation now returns something.
18 - correctly set errno to ENOSYS on unimplemented functions 187 - correctly set errno to ENOSYS on unimplemented functions
19 (should never happen, though). 188 (should never happen, though).
189 - large changes to make it partially compile and run on win32,
190 but win32 lacks too much functionality, and perl overrides way
191 too many functions with crashing versions.
20 192
212.33 Tue Jan 23 23:55:41 CET 2007 1932.33 Tue Jan 23 23:55:41 CET 2007
22 - fix install path (Andreas J. Koenig). 194 - fix install path (Andreas J. Koenig).
23 195
242.32 Mon Jan 22 16:56:23 CET 2007 1962.32 Mon Jan 22 16:56:23 CET 2007

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines