And in the words of another great "premature optimization is the root of
all evil". But I suppose that is a moot point when writing an SMF exit :)
On 16/06/2015 9:51 PM, Charles Mills wrote:
Yes, it's a sample. In the words of the great computer scientist Graham Nash, "Teach
your children well ..."
Charles
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of David Crayford
Sent: Tuesday, June 16, 2015 6:39 AM
To: [email protected]
Subject: Re: Is there any tools or interface which could analyse or monitor
SYS1.MANX directly?
On 16/06/2015 9:23 PM, Charles Mills wrote:
Obviously a nit-pick and I knew that when I posted it. Hence the LOL. But a
shop might write 100 million SMF records a day. These instructions will get
exercised for most (IEFU83) of them. Even one cycle per tends to add up. I have
had to learn the new way of thinking: instructions don't count; storage
references count. An unneeded reference to storage is potentially very wasteful
of cycles.
True. But it's a sample so hack away. The trouble with assembler is it doesn't
have an optimizer. The programmer is the optimizer.
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