: Re: How do I compare CPU times on two machines?
Yeah, that's where I am heading. At the moment I don't have the same data on
both machines.
I thought this question was going to be easy.
Charles
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.
essage-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of Scott Chapman
Sent: Sunday, December 15, 2019 6:02 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: How do I compare CPU times on two machines?
>> The numbers below (from IBM.com) do not seem to support what you
, December 15, 2019 1:02 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: How do I compare CPU times on two machines?
To a first approximation, run the same job on both and compare. IBM has a
synthetic benchmark, and you can use those numbers as long as you understand
that your workload may not giv
metz3
From: IBM Mainframe Discussion List on behalf of
Charles Mills
Sent: Friday, December 13, 2019 3:26 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: How do I compare CPU times on two machines?
I know this is a pretty basic question. I can research it but I am afraid
that if I mis
>> The numbers below (from IBM.com) do not seem to support what you are saying
>> however: "if you're trying to convert CPU time between machines, the ratio
>> of any of SUs, MSUs, or PCI will be pretty much equally "fine"." The ratio
>> of the PCI's of the two machines is about eight-to-one but
question: how
> do I compare CPU times on two different machines?
>
> Charles
>
>
> -Original Message-
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
> Behalf Of Scott Chapman
> Sent: Saturday, December 14, 2019 4:48 AM
> To: IBM
Brennan
Sent: Saturday, December 14, 2019 10:18 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: How do I compare CPU times on two machines?
What about IBM's zPCR Windows program? That uses a base performance
number from an old z9EC as a reference, coming up with numbers which
look like s
mpare CPU times on two different machines?
Charles
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of Scott Chapman
Sent: Saturday, December 14, 2019 4:48 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: How do I compare CPU times on two machi
CPU times on two different machines?
Charles
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of Scott Chapman
Sent: Saturday, December 14, 2019 4:48 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: How do I compare CPU times on two machines?
SUs, MSU, PCI (IBM MIPS) ratings are all just different magnitudes of the same
number. What I mean is that they all are calculated from the same LSPR tests
and exist in relatively fixed ratios to each other. There may be some slight
variations because (for example) MSUs and PCIs are quoted in wh
I don't think service units necessarily work, since there's the "technology
dividend", where IBM admits (heck, touts) that 1 MSU on
generation n is capable of more work than 1 MSU on generation n-1. They don't
always do this, but have more than once.
.phsiii
List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
> Behalf Of ITschak Mugzach
> Sent: Friday, December 13, 2019 12:57 PM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: Re: How do I compare CPU times on two machines?
>
> I would convert CPU to service units, which can be compared between
> different
> Charles
>
>
> -Original Message-
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
> Behalf Of Charles Mills
> Sent: Friday, December 13, 2019 12:27 PM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: How do I compare CPU times on two machines?
>
I doing that correctly?
Charles
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of ITschak Mugzach
Sent: Friday, December 13, 2019 12:57 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: How do I compare CPU times on two machines?
I would
UA.EDU] On
Behalf Of Charles Mills
Sent: Friday, December 13, 2019 12:27 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: How do I compare CPU times on two machines?
I know this is a pretty basic question. I can research it but I am afraid
that if I miss one detail I could be off by an order of magnitude.
I would convert CPU to service units, which can be compared between
different machines. Service units are cpu depended. You need to multiply
CPU by machine service unit factor. you can find this value in the
processor tables.
ITschak
On Fri, Dec 13, 2019 at 10:27 PM Charles Mills wrote:
> I kno
I know this is a pretty basic question. I can research it but I am afraid
that if I miss one detail I could be off by an order of magnitude.
How do I compare CPU seconds on two different machines -- in this case a
z196 model M49 and a z114 model M10?
This is not like a huge purchase decision benc
17 matches
Mail list logo
