Re: Spinlocks, yet again: analysis and proposed patches

From: "Alexander Kirpa" <postgres(at)bilteks(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Spinlocks, yet again: analysis and proposed patches
Date: 2005-09-20 02:11:31
Message-ID: 432F9A03.12064.6EEF80B4@localhost
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

The fact that cmpb isn't helping proves that getting the cache line
in a
read-only fashion does *not* do enough to protect the xchgb in this
way.
But maybe another locking instruction would. Comments?

regards, tom lane

Hi, Tom!

Possible you help next link
'Replay: Unknown Features of the NetBurst Core'
http://www.xbitlabs.com/articles/cpu/display/replay.html

Best regards,
Alexander Kirpa

Browse pgsql-hackers by date

  From Date Subject
Next Message Bruce Momjian 2005-09-20 02:16:36 Re: DISTINCT vs. GROUP BY
Previous Message Bruce Momjian 2005-09-20 01:17:26 Re: [pgsql-hackers-win32] Time to close hackers-win32?