On Fri, Feb 19, 2021 at 7:01 AM Сучасні Системи Безпеки <grino....@gmail.com> wrote:
> i continue digging in this > > i turned on C states in bios (the was OFF) > > now the pmcstat shows: > > %SAMP IMAGE FUNCTION CALLERS > 41.9 kernel acpi_cpu_idle_mwait acpi_cpu_idle > 38.6 kernel lock_delay _mtx_lock_spin_cookie > > the acpi_cpu_idle wen from 70 to 40% but ther is a new process - > lock_delay %( > > i trying to run lockstat -x aggsize=4m sleep 10 > lock-type.txt > but it's not starting > > lockstat: failed to compile program: "/usr/lib/dtrace/ip.d", line 125: > failed to copy type of 'ipv6_hdr': Conflicting type is already defined > > what's wrong with by HP gen8 ? > > A high Lock_delay should indicate some lock contention. Could you read the last chapter here "Lock contention source", about lockstat usage: https://bsdrp.net/documentation/technical_docs/performance#where_is_the_bottleneck Regards, Olivier
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