Date: Wed, 16 Jul 2003 22:57:07 +0100 From: "Steven Hartland" <killing@barrysworld.com> To: "Petri Helenius" <pete@he.iki.fi>, "Jin Guojun [DSD]" <j_guojun@lbl.gov>, <freebsd-performance@freebsd.org> Subject: Re: timer counter chip access mystery] Message-ID: <00b501c34be5$351a83f0$b3db87d4@vader> References: <3F15C584.38848DCE@lbl.gov> <071401c34be3$71a03510$812a40c1@PETEX31>
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If this could be changed / fixed it would have a marked performance increase
for all game server code which use this function heavily from what I've seen
and would explain the sometimes huge performance differential between
FreeBSD and Linux.
Steve / K
----- Original Message -----
From: "Petri Helenius" <pete@he.iki.fi>
To: "Jin Guojun [DSD]" <j_guojun@lbl.gov>; <freebsd-performance@freebsd.org>
Sent: Wednesday, July 16, 2003 10:44 PM
Subject: Re: timer counter chip access mystery]
>
> This access happens over ISA bus and thus happens at the speed the bus
> operates at. Use TSC or ACPI for faster gettimeofday.
>
> Pete
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