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Re: Re: Strangeness in xid allocation / snapshot setup - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Re: Strangeness in xid allocation / snapshot setup
Date
Msg-id 11673.994964642@sss.pgh.pa.us
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In response to Strangeness in xid allocation / snapshot setup  (Tom Lane <tgl@sss.pgh.pa.us>)
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"Mikheev, Vadim" <vmikheev@SECTORBASE.COM> writes:
> Isn't spinlock just a few ASM instructions?... on most platforms...

If we change over to something that supports read vs write locking,
it's probably going to be rather more than that ... right now, I'm
pretty dissatisfied with the performance of our spinlocks under load.
        regards, tom lane

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