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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. |