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Re: Hunting for performance regressions in libstdc++
- From: Jonathan Wakely <cow at compsoc dot man dot ac dot uk>
- To: Dan Kegel <dank at kegel dot com>
- Cc: libstdc++ at gcc dot gnu dot org
- Date: Thu, 16 Jun 2005 12:24:42 +0100
- Subject: Re: Hunting for performance regressions in libstdc++
- References: <42B0FB92.7040506@kegel.com>
On Wed, Jun 15, 2005 at 09:09:54PM -0700, Dan Kegel wrote:
> I have a sneaking suspicion that some of my app's
> performance problems might be due to gcc-3.4.3's libstdc++
> being somehow slower than SGI's STL, so I'm planning
> on doing some performance testing of various implementations
> of STL.
As Paolo said, libstdc++-v3's STL _is_ SGI's STL, for the most part.
> Any more come to mind?
http://www.stepanovpapers.com/container_benchmark.cpp
(a modified version of which is included in libstdc++'s performance
testsuite, IIRC)
You might also try the Stepanov abstraction penalty tests.
jon
--
randsig.cc:23:In function `int pickNewSig(unsigned long rn, std::string& sigbuf, const std::string& oldsig, std::ifstream& sigf)':
randsig.cc:23: warning: ISO C++ forbids using compiler error msgs as signatures