On 4 Sep, Manfred Spraul wrote:
> markw@osdl.org wrote:
>
>>http://developer.osdl.org/markw/44/
>>
>>I threw together (kind of sloppily) a web page of the data I was
>>starting to collect for our DBT-2 workload (TPC-C derivative) on
>>PostgreSQL 7.3.4. Keep in mind not much database tuning has been done
>>yet. Feel free to ask any questions.
>>
>>
>>
> The kernel readprofile output is very odd:
> sys_ipc receives lots of hits, but that function is a trivial multiplexer.
> sys_timedsemop, and try_atomic_semop got 0 hits - that's the main
> implementation of sysv semaphores. Could you double check your
> readprofile scripts?
Someone here was kind enough to run a little test comparing profiles
from 2.4.20-19 (a redhat kernel) and 2.6.0-test4-mm5. He found that the
2.6.0-test4-mm5 profile lacked sys_timedsemop and try_atomic_semop.
Mark
