3 messages in org.freebsd.freebsd-smpRe: Compaq Proliant 6500| From | Sent On | Attachments |
|---|---|---|
| John...@Gunter.AF.mil | Feb 22, 2000 7:00 am | |
| Doug Barton | Feb 22, 2000 9:10 pm | |
| John...@Gunter.AF.mil | Feb 23, 2000 6:22 am |
| Subject: | Re: Compaq Proliant 6500 | |
|---|---|---|
| From: | Doug Barton (Do...@gorean.org) | |
| Date: | Feb 22, 2000 9:10:48 pm | |
| List: | org.freebsd.freebsd-smp | |
John...@Gunter.AF.mil wrote:
I've posted to 'questions' a couple of times and they directed me over here. I'm trying to get SMP properly running on my Proliant 6500. I started with SmartStart, chose 'Other' and didn't install a system partition. Then I install 3.4-RELEASE. Running mptable gives me the following:
NCPU=2 NAPIC=1 NBUS=3 NINTR=49
HRrrmmmm... that brings up an interesting question. I have an SMP box on which I ran mptable, and got the following at the end:
------------------------------------------------------------------------------- # SMP kernel config file options:
# Required: options SMP # Symmetric MultiProcessor Kernel options APIC_IO # Symmetric (APIC) I/O
# Optional (built-in defaults will work in most cases): #options NCPU=2 # number of CPUs #options NBUS=2 # number of busses #options NAPIC=1 # number of IO APICs #options NINTR=24 # number of INTs ===============================================================================
The only thing different in that list from the commented out defaults in GENERIC is NBUS. Do I gain anything by explicitly setting NBUS=2 in my kernel config, as opposed to just allowing it to use the default 4? I would think that if I had more busses than 4 that this would be significant, but I'm always interested in learning new things. :)
BTW, took a look at the -dmesg option and it seems to me that it would be better to use /var/run/dmesg.boot since just using 'system( "dmesg" );' can include lots of non-boot related info, and might not actually include the boot info if there have been a lot of kernel messages. I can do a patch if anyone is interested....
Thanks,
Doug
-- "Welcome to the desert of the real."
- Laurence Fishburne as Morpheus, "The Matrix"
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