Horton

Re: Linux v.s. Mac OS-X Performance

Scott Ribe <scott_ribe@killerbytes.com>

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From: Scott Ribe <scott_ribe@killerbytes.com>
To: Craig White <craigwhite@azapple.com>, <pgsql-general@postgresql.org>
Date: 2007-11-13T16:02:59Z
Lists: pgsql-general 
> my understanding was that the lack of threading on OSX made it
> especially poor for a DB server

What you're referring to must be that the kernel was essentially
single-threaded, with a single "kernel-funnel" lock. (Because the OS
certainly supported threads, and it was certainly possible to write
highly-threaded applications, and I don't know of any performance problems
with threaded applications.)

This has been getting progressively better, with each release adding more
in-kernel concurrency. Which means that 10.5 probably obsoletes all prior
postgres benchmarks on OS X.

-- 
Scott Ribe
scott_ribe@killerbytes.com
http://www.killerbytes.com/
(303) 722-0567 voice