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| author | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-08-24 06:31:15 +0000 |
|---|---|---|
| committer | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-08-24 06:31:15 +0000 |
| commit | 7049d9c80d1ba859beb5d68c7a9de37d5c11b8e8 (patch) | |
| tree | e64aa3d7290f296d3685aa27a3e0997fac84a76d /ChangeLog | |
| parent | 4f03f0cb67b0bf6497ffd4051e872905e3b49ead (diff) | |
| download | ruby-7049d9c80d1ba859beb5d68c7a9de37d5c11b8e8.tar.gz | |
* iseq.h, iseq.c, compile.c: Change the line number data structure
to solve an issue reported at [ruby-dev:44413] [Ruby 1.9 - Bug #5217].
Before this fix, each instruction has an information including
line number (iseq::iseq_insn_info_table). Instead of this data
structure, recording only line number changing places
(iseq::iseq_line_info_table).
The order of entries in iseq_line_info_table is ascending order of
iseq_line_info_table_entry::position. You can get a line number
by an iseq and a program counter with this data structure.
This fix reduces memory consumption of iseq (bytecode).
On my measurement, a rails application consumes 21.8MB for
iseq with this fix on the 32bit CPU. Without this fix, it
consumes 24.7MB for iseq [ruby-dev:44415].
* proc.c: ditto.
* vm_insnhelper.c: ditto.
* vm_method.c: ditto.
* vm.c (rb_vm_get_sourceline): change to use rb_iseq_line_no().
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33046 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -1,3 +1,27 @@ +Wed Aug 24 15:13:56 2011 Koichi Sasada <ko1@atdot.net> + + * iseq.h, iseq.c, compile.c: Change the line number data structure + to solve an issue reported at [ruby-dev:44413] [Ruby 1.9 - Bug #5217]. + Before this fix, each instruction has an information including + line number (iseq::iseq_insn_info_table). Instead of this data + structure, recording only line number changing places + (iseq::iseq_line_info_table). + The order of entries in iseq_line_info_table is ascending order of + iseq_line_info_table_entry::position. You can get a line number + by an iseq and a program counter with this data structure. + This fix reduces memory consumption of iseq (bytecode). + On my measurement, a rails application consumes 21.8MB for + iseq with this fix on the 32bit CPU. Without this fix, it + consumes 24.7MB for iseq [ruby-dev:44415]. + + * proc.c: ditto. + + * vm_insnhelper.c: ditto. + + * vm_method.c: ditto. + + * vm.c (rb_vm_get_sourceline): change to use rb_iseq_line_no(). + Wed Aug 24 09:49:10 2011 Koichi Sasada <ko1@atdot.net> * insns.def (defined): fix to checking class variable. |