Ewan Todd wrote:
5.3 ships with SMP turned on, which makes lock operations rather
expensive on single-processor machines. 4.x does not have SMP
turned on by default. Would you be able to re-run your test with
SMP turned off?
I'm pretty sure there's no SMP in this kernel.
#cd /usr/src/sys/i386/conf
#fgrep SMP MYKERNEL
#
GENERIC has no SMP in it, but there's a second "GENERIC" kernel conf
called "SMP", which simply says:
include GENERIC
options SMP
However, sysctl seems to show smp not active, but not disabled. Is
that anything to worry about?
#sysctl -a | grep smp
kern.smp.maxcpus: 1
kern.smp.active: 0
kern.smp.disabled: 0
kern.smp.cpus: 1
debug.psmpkterrthresh: 2
-e
Bah, you're right, sorry for the confusion. Too many releases in my
mind, they all seem like a blur.
Scott
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