Dathan Vance Pattishall wrote:
Has anyone does any benchmarks with mysql, AMD and gcc 3.4? Gcc 3.4 is
suppose to support AMD specific instructions giving a boost in performance.
I haven't done any benchmarking, no.
I have compiled MySQL with gcc-3.4.2 and gcc-3.4.3 on some desktop
machines here ( purely to get the client libraries installed ) and I can
say that it at least compiles. I also played around with MySQL-4.1.7 on
one of these systems to see how MyODBC-3.51.10 works connecting to it -
I loaded up a server database backup into it and did about an hour of
testing. Everything seemed to work OK.
I would avoid gcc-3.4.x for now on server systems though. I'm pretty
sure many people here would consider me a fool for using Gentoo on a
production server, but I at least use the 'stable' branch, and the
compiler that the stable profile uses is gcc-3.3.4. I agree with this
choice. If you use gcc-3.4.x on a server system you are asking for
trouble. Any performance gain you will gain will be quite small. I would
be surprised if you got more than a 5% increase in performance, but I'm
just guessing. If you're after performance, you're better off checking
out the performance tuning guides available on the MySQL website. The
query cache is particularly effective for us.
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