Hi,
Am 21.11.2005 um 16:17 schrieb <[EMAIL PROTECTED]> <[EMAIL PROTECTED]>:
i got a Problem on my dual XEON 3.06 GhZ machine, 2GB of >RAM,
FreeBSD
5.4-STABLE.
I got "option SMP" in the kernel config and
>"machdep.hlt_logical_cpus=1" in
/boot/loader.conf.
There are just 20 processes running (typical ones like >getty and
stuff) and
the load of this machine is at 1.xx. There is no bgfsck and >other
stuff.
So, i built a new kernel without "option SMP", rebooted, >and the
load was
at 0.0x. But only one CPU was used (detected).
So, what could bei the Problem?
Well, the machine shows me 4 CPUs, HTT is not enabled via >/boot/
loader.conf
and "machdep.hyperthreading_allowed". So, how to disable >HTT?
Maybe this is
the problem of the high load?
Why are you setting machdep.hlt_logical_cpus=1? My understanding,
this would turn off one of the cpus. It should be set to 0 to have
both cpus going. Also it is set in sysctl.conf not loader.conf, at
least, that is how I have it.
Both CPUs are working. Also, works with machdep in loader.conf.
Thats not the problem.
I am also curious how machdep.hyperthreading_allowed works. I run 6
so I believe it is turned on by default. Is this correct? Also if
it is a solo cpu with HTT, do you need option SMP and
machdep.hlt_logical_cpus=0 set or not with
machdep.hyperthreading_allowed on?
I do not know. I just want turn off HTT, but stay with SMP. So i want
my two phyiscal CPUs working, but not the logical (HTT) one.
This is because is think maybe the load of 1.0x comes from turning on
HTT. Well, if i do not use SMP in the kernel, the load is fine, but
there is just one of the physical CPUs working.
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