Someone from IBM sent me a couple of presentations, some of which I had
contributed to. It covers things like *instruction decode, address
generate, execute, put away*; parallelism.
How
L R4,VALUE
L R5,0(R4) this has to wait until the previous load has finished,
but other instructions
Colin,
you looking for a presentation on performance (to whatever level)
or
on hardware instrumentation service (the z/OS name - feature name:
measurement and counter)
There are a few I have seen/attended. So there are not IBM confidential
and should be locatable on the net.
About HI
ehalf of
Lennie Dymoke-Bradshaw <032fff1be9b4-dmarc-requ...@listserv.ua.edu>
Sent: Thursday, March 2, 2023 1:10:47 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Hardware instrumentation presentation
I recommend you speak to Martin Packer at IBM.
Lennie
-Original Message-
From: IB
I recommend you speak to Martin Packer at IBM.
Lennie
-Original Message-
From: IBM Mainframe Discussion List On Behalf Of
Colin Paice
Sent: 01 March 2023 18:00
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Hardware instrumentation presentation
I've been asked to give a talk on performance
I've been asked to give a talk on performance to a University Computing
department.
I know the z hardware has in builtin instrumentation which allows you to
see where the delays were for a particular instruction. For example this
load instruction got data from the L3 cache and it took x nano seco
