Re: [HACKERS] Postgres Speed or lack thereof
| От | Bruce Momjian |
|---|---|
| Тема | Re: [HACKERS] Postgres Speed or lack thereof |
| Дата | |
| Msg-id | 199903152146.QAA20764@candle.pha.pa.us обсуждение |
| Ответ на | Re: [HACKERS] Postgres Speed or lack thereof (jwieck@debis.com (Jan Wieck)) |
| Список | pgsql-hackers |
> > > > Can someone remind me where we left this memory context stuff? > > > > I've changed AllocSetAlloc() and friends to manage small > allocations in bigger blocks together where the sizes are > round up to powers of two and free's chunks in the blocks are > reused in place. The entire blocks get only free'd when they > get completely free. > > Then I've changed palloc() etc. into macros (which started > the discussion on mcxt.h - sorry). > > Overall speedup from the changes (for regression) is > something about 10-15%. > Great. -- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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