4 - do not assume that $^P stays unchanged inside the profiled subroutine
12 - improved the mapping between subroutines and identifiers
13 - do not assume that $^P stays unchanged during the lifetime of the script
14 - panic when the profiled subroutine is leaved with goto/last/next
16 - document the problem with the subroutines exited with goto/last/next
24 - To avoid core dumps, increase stack size by 10 instead of 5.
25 - Assert that g_profstack is large enough when DEBUGGING is defined
32 Newer perls: Add PERL_POLLUTE and dTHR.
35 This version of DProf should work with older Perls too, but to get
36 full benefits some patches to 5.004_55 are needed. Patches take effect
37 after new version of Perl is installed, and DProf recompiled.
39 Without these patches the overhead of DProf is too big, thus the statistic
45 - correct defstash to PL_defstash
50 - documentation updated
55 Jason E. Holt and Ilya Zakharevich:
57 - will not wait until completion to write the output, size of buffer
58 regulated by PERL_DPROF_BUFFER, default 2**14 words;
62 - smarter in fixing garbled profiles;
63 - subtracts DProf output overhead, and suggested profiler overhead;
64 - new options -A, -R, -g subroutine, -S;
67 - 7x denser output (time separated from name, ids for subs);
68 - outputs report-write overhead;
69 - optional higher-resolution (currently OS/2 only, cannot grok VMS code);
70 - outputs suggested profiler overhead;
72 - handles PERL_DPROF_TICKS (on OS/2, VMS may be easily modified too)
74 Jun 14, 97 andreas koenig adds the compatibility notes to the README
75 and lets the Makefile.PL die on $] < 5.004.
77 Jun 06, 97 andreas koenig applies a patch by gurusamy sarathy because
78 Dean is not available for comments at that time. The patch is available
79 from CPAN in the authors/id/GSAR directory for inspection.
83 - added Ilya's patches to fix "&bar as &bar(@_)" bug. This also fixes
84 the coredumps people have seen when using this with 5.003+.
90 - remove special case for bug.t
94 - smarter r.e. to find VERSION in Makefile (for MM5.27).
98 - keep pid of profiled process, if process forks then only the
99 parent is profiled. Added test4 for this.
105 - updated manpage, point to DProf for raw profile description.
107 - update manpage, update raw profile description with XS_VERSION.
108 - update manpage for AUTOLOAD changes.
110 - smart handling of &AUTOLOAD--looks in $AUTOLOAD for the sub name.
111 this fixes one problem with corrupt profiles.
116 - added -E/-I for exclusive/inclusive times
117 - added DPROFPP_OPTS -- lazily
118 - added -p/-Q for profile-then-analyze
119 - added version check
121 - pull dprofpp's version id from the makefile
123 - added version to bootstrap
125 - updated doc, DProf and -w are now friendly to each other
128 - added Tim's patch to check for DBsub, avoids -MDevel::DProf coredump
129 - turn off warnings during newXS("DB::sub")
131 - added Tim's patch to ignore Loader::import in results
132 - added Tim's patch to aid readability of test?.v output
135 -- from those days when I kept a unique changelog for each module --
137 # Devel::DProf - a Perl code profiler
140 # changes/bugs fixed since 5apr95 version -dmr:
141 # -added VMS patches from CharlesB.
142 # -now open ./tmon.out in BOOT.
143 # changes/bugs fixed since 2apr95 version -dmr:
144 # -now mallocing an extra byte for the \0 :)
145 # changes/bugs fixed since 01mar95 version -dmr:
146 # -stringified code ref is used for name of anonymous sub.
147 # -include stash name with stringified code ref.
148 # -use perl.c's DBsingle and DBsub.
149 # -now using croak() and warn().
150 # -print "timer is on" before turning timer on.
151 # -use safefree() instead of free().
152 # -rely on PM to provide full path name to tmon.out.
153 # -print errno if unable to write tmon.out.
154 # changes/bugs fixed since 03feb95 version -dmr:
156 # changes/bugs fixed since 31dec94 version -dmr:
157 # -added patches from AndyD.
160 # Devel::DProf - a Perl code profiler
163 # changes/bugs fixed since 05apr95 version -dmr:
164 # - VMS-related prob; now let tmon.out name be handled in XS.
165 # changes/bugs fixed since 01mar95 version -dmr:
166 # - record $pwd and build pathname for tmon.out
167 # changes/bugs fixed since 03feb95 version -dmr:
168 # - fixed some doc bugs
169 # - added require 5.000
170 # - added -w note to bugs section of pod
171 # changes/bugs fixed since 31dec94 version -dmr:
176 # dprofpp - display perl profile data
179 # changes/bugs fixed since 7oct95 version -dmr:
181 # changes/bugs fixed since 5apr95 version -dmr:
182 # - touch up handling of exit timestamps.
183 # - suggests -F when exit timestamps are missing.
184 # - added compressed execution tree patches from AchimB, put under -t.
185 # now -z is the default action; user+system time.
187 # changes/bugs fixed since 10feb95 version -dmr:
188 # - summary info is printed by default, opt_c is gone.
189 # - fixed some doc bugs
190 # - changed name to dprofpp
191 # changes/bugs fixed since 03feb95 version -dmr:
192 # - fixed division by zero.
193 # - replace many local()s with my().
194 # - now prints user+system times by default
195 # now -u prints user time, -U prints unsorted.
196 # - fixed documentation
197 # - fixed output, to clarify that times are given in seconds.
198 # - can now fake exit timestamps if the profile is garbled.
199 # changes/bugs fixed since 17jun94 version -dmr:
201 # - correct old documentation flaws.
202 # - added AndyD's patches.