timer counter chip access mystery]

[Steven Hartland]

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 at he.iki.fi>
To: "Jin Guojun [DSD]" <j_guojun at lbl.gov>; <freebsd-performance at 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