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AW: Re: AW: Re: What does "Time at PDP..." in SMF99 mean?
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Peter Hunkeler
2017-12-06 14:04:15 UTC
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I'm not 100% sure but that could be "promoted dispatching priority" where
SRM temporarily promotes an address space to a DP of X'FF' while it holds a
local lock.



Only promotion due to holding a lock, or any promotion as part of blocked workload support?


--
Peter Hunkeler



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David Betten
2017-12-06 14:27:35 UTC
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Again I'm somewhat guessing but I'd assume any promotion (BLK, ENQ, CRM,
LCK, SUP). I only mentioned local lock because I saw the additional field
of SMF99_HdLockPromotion_Time_at_PDP and SMF99_HdLock_Time_at_PDP_Using.
Hopefully someone with more expertise than me can confirm. Or if you're
seeing higher values in these fields you can check the PROMOTED fields in
the RMF workload activity report to see if they correlate.


Have a nice day,
Dave Betten
z/OS Performance Specialist
Cloud and Systems Performance
IBM Corporation
Date: 12/06/2017 09:07 AM
Subject: AW: Re: AW: Re: What does "Time at PDP..." in SMF99 mean?
I'm not 100% sure but that could be "promoted dispatching priority"
where
SRM temporarily promotes an address space to a DP of X'FF' while it holds
a
local lock.
Only promotion due to holding a lock, or any promotion as part of
blocked workload support?
--
Peter Hunkeler
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