Make sure you have mysql query cachining disabled for the test. Was it?
Xing
Mikhail Ramendik wrote:
Hello,
I have retested the performance impact of my icfetch_speedup and
db_header_speedup patches. (My previous tests were irrelevant because
logging caused the main overhead).
The dbmysql patch was applied; it's simple and obvious so who needs to
test it anyway...
Here are the results, on the same machine and the same settings, with no
other tasks running and no swapping, average between 10 secs somewhere
in the beginning of the operation and 10 secs somewhere at the end, in
messages per second:
dbmail 2.0+dbmysql: 128
2.0+dbmysql+icfetch_speedup: 184
2.0+dbmysql+icfetch_speedup+db_header_speedup: 193
So, both speedups work but the real big impact is in icfetch_speedup.
Unfortunately it's the more complicated as well, and so requires some
testing and/or independent review before getting included into the 2.0.x
branch. But it's still small enough to be included, I think.
Yours, Mikhail Ramendik
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