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

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On Tue, 27 Nov 2007 17:01:06 -0700
Scott Ribe <scott_ribe(at)killerbytes(dot)com> wrote:

> > In general, you can expect any Unix based OS, which includes MacOS
> > X, to perform noticeably better than Windows for PostgreSQL.
>
> Is that really true of BSD UNIXen??? I've certainly heard it's true of
> Linux. But with BSD you have the "kernel funnel" which can severely
> limit multitasking, regardless of whether threads or processes were
> used. Apple has been working toward finer-grained locking precisely
> because that was a serious bottleneck which limited OS X server
> performance.
>
> Or have I misunderstood and this was only the design of one particular
> flavor of BSD, not BSDen in general?

Not much of a kernel guy here but my understanding is that MacOSX is
basically NeXT version 10, which means... Mach... which is entirely
different than say FreeBSD at the kernel level.

Joshua D. Drake

>

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