Re: [HACKERS] inlining
От | Bruce Momjian |
---|---|
Тема | Re: [HACKERS] inlining |
Дата | |
Msg-id | 199806121221.IAA10695@candle.pha.pa.us обсуждение исходный текст |
Ответ на | RE: [HACKERS] inlining ("Stupor Genius" <stuporg@erols.com>) |
Список | pgsql-hackers |
> > > Btw, I sure wish someone would comment on the S_LOCK analysis even if only > > to tell me not to make such long posts as it wastes bandwidth. Or > > was it just too long to read? > > I read it all! Great analysis of the situation and not a waste, IMHO. > > One comment...when you ran the tests in succession, could the cache be > responsible for the timing groupings in the same test? Should a > little program be run in between to "flush" the cache full of garbage > so each real run will miss? Seem to recall a little program, in CUJ, > I think, that set up a big array and then iterated over it to trash > the cache. Yes, that is a good point. When testing in a loop, the function is in the cache, while in normal use, the function may not be in the cache because of intervening instructions. -- Bruce Momjian | 830 Blythe Avenue maillist@candle.pha.pa.us | Drexel Hill, Pennsylvania 19026 + If your life is a hard drive, | (610) 353-9879(w) + Christ can be your backup. | (610) 853-3000(h)
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