| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | Manfred Spraul <manfred(at)colorfullife(dot)com>, Jan Wieck <JanWieck(at)Yahoo(dot)com>, pgsql-hackers(at)postgreSQL(dot)org, markw(at)osdl(dot)org |
| Subject: | Re: [PATCHES] update i386 spinlock for hyperthreading |
| Date: | 2003-12-30 04:14:48 |
| Message-ID: | 20304.1072757688@sss.pgh.pa.us |
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| Lists: | pgsql-general pgsql-hackers pgsql-patches |
Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Manfred Spraul wrote:
>> I remember there were patches that tried other algorithms instead of the
>> simple LRU for the buffer manager. Has anyone tried to change the
>> locking of the buffer manager?
> CVS HEAD already has an Adaptive Replacement Cache (ARC) for buffer
> replacement.
That's irrelevant to the problem, though. Unless the ARC code uses data
structures that are more amenable to localized locking than the old
global buffer freelist. (Jan?)
regards, tom lane
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