Mutex documentaion
Neil Truby reported high CPU and a long ready queue at a customer, with slcommon_ct mutexes visible in onstat -g lmx, and asked for documentation. Madison Pruet said it coordinates threads using a multiplexed connection and suggested more mux terminators might be needed. Whether it caused the problem was not established.
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I've a "slow performance" issue at a customer site. PMR 55561,001,866
refers.
When we have the problem - symptom being high server cpu, persistently long
ready queue etc - we notice slcommon_ct mutexes listed when we type in
onstat -g lmx.
Does anyone have any info on these? Google doesn't!
thx
Neil
Neil Truby wrote:
> I've a "slow performance" issue at a customer site. PMR 55561,001,866
> refers.
>
> When we have the problem - symptom being high server cpu, persistently
> long ready queue etc - we notice slcommon_ct mutexes listed when we type
> in onstat -g lmx.
>
> Does anyone have any info on these? Google doesn't!
This is the mutex which coordinates the threads using a multiplexor
connection.
>
> thx
> Neil
>
> This is the mutex which coordinates the threads using a multiplexor > connection. Does that mean its presence is not something that requires further analysis as the cause of our problems?
Neil Truby wrote: >> This is the mutex which coordinates the threads using a multiplexor >> connection. > > Does that mean its presence is not something that requires further > analysis as the cause of our problems? I haven't worked with using a mux interface, but it might be that additional mux terminators are needed.
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