Re: strict aliasing (was: const correctness)
| От | Tom Lane |
|---|---|
| Тема | Re: strict aliasing (was: const correctness) |
| Дата | |
| Msg-id | 24666.1321301941@sss.pgh.pa.us обсуждение |
| Ответ на | Re: strict aliasing (was: const correctness) ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>) |
| Ответы |
Re: strict aliasing (was: const correctness)
Re: strict aliasing (was: const correctness) |
| Список | pgsql-hackers |
"Kevin Grittner" <Kevin.Grittner@wicourts.gov> writes:
> The results were interesting. While the small overlap between
> samples from the two builds at most levels means that this was
> somewhat unlikely to be just sampling noise, there could have been
> alignment issues that account for some of the differences. In
> short, the strict aliasing build always beat the other with 4
> clients or fewer (on this 4 core machine), but always lost with more
> than 4 clients.
That is *weird*.
> Also, is there something I should do to deal with the warnings
> before this would be considered a meaningful test?
Dunno ... where were the warnings exactly? Also, did you run the
regression tests (particularly the parallel version) against the
build?
regards, tom lane
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