Re: 7.2 is slow? - Mailing list pgsql-hackers

From Tom Lane
Subject Re: 7.2 is slow?
Date
Msg-id 29755.1008776681@sss.pgh.pa.us
Whole thread Raw
In response to Re: 7.2 is slow?  (Luis Amigo <lamigo@atc.unican.es>)
List pgsql-hackers
Luis Amigo <lamigo@atc.unican.es> writes:
> We're getting similar problem.
> We're currently working on TPC-H benchmarking using postgresql 7.2b3.
> From one up to 8 paralell conexions (we've got 8 MIPS processors),

MIPS?  Which spinlock implementation is getting used?  (Look in
src/include/storage/s_lock.h and src/backend/storage/lmgr/s_lock.c)

If you're falling back to the default SysV-semaphore based spinlock
implementation, I wouldn't be surprised to see a performance problem...
        regards, tom lane


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