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Re: Slow handling of C++ symbol names
- From: mec dot gnu at mindspring dot com (Michael Elizabeth Chastain)
- To: cagney at gnu dot org
- Cc: drow at mvista dot com, gdb at sources dot redhat dot com, ian at wasabisystems dot com
- Date: Wed, 3 Dec 2003 15:13:52 -0500 (EST)
- Subject: Re: Slow handling of C++ symbol names
mec> Here are some memory usage and time numbers.
mec>
mec> gdb memory utime stime elapsed
mec> 5.3 263M 84.79 26.52 185.92
mec> 6.0 263M 83.17 26.45 181.04
mec> HEAD 43M 2.78 0.27 3.23
mec>
mec> gdb HEAD is from '2003-11-30 06:08:24 UTC'.
ac> Michael, not to overload you but would it also be possible to do the
ac> numbers on a just-before-new-mangler-mainline?
Yeah, that's pretty straightforward.
Here's a timeline on cp-demangle.c (times are from the src/ archive).
2003-05-03 Fix typo in "std::basic_istream ... char_traints ..." [sic]
2003-08-12 Fix license (no code change)
2003-08-19 Some bug fixes to old demangler by ILT
2003-08-20 Another ILT bug fix to old demangler
2003-08-21 New demangler
So I'll do:
gdb HEAD 2003-11-19 16:00:00 UTC
which is just before the bug fixes of the old demangler,
gdb HEAD 2003-11-21 17:00:00 UTC
which is just before the new demangler appeared in src
Michael C