cvs commit: src/sys/conf options.i386 src/sys/i386/i386 tsc.c src/sys/i386/conf NOTES

[Poul-Henning Kamp]

In message <20030405171037.Y37234 at gamplex.bde.org>, Bruce Evans writes:
>On Fri, 4 Apr 2003, Tor Egge wrote:
>
>> tegge       2003/04/04 15:54:47 PST
>>
>>   FreeBSD src repository
>>
>>   Modified files:
>>     sys/conf             options.i386
>>     sys/i386/i386        tsc.c
>>     sys/i386/conf        NOTES
>>   Log:
>>   Add SMP_TSC option, which can be used on SMP systems where the TSCs
>>   are synchronized to reduce context switch cost.
>
>This should be implemented by making the TSC timecounter available on
>all systems that have a TSC, but not actually using it for the SMP case
>unless it is enabled using sysctl "machdep.timecounter.hardware=TSC".

That would make more sense, yes.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.