« Return to Thread: zIIP processor (ENGINE type IP)
Re: zIIP processor (ENGINE type IP)
by Mike Schwab
::
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http://publib.boulder.ibm.com/infocenter/zos/v1r9/index.jsp?topic=/com.ibm.zos.r9.e0zh300/smfrmf.htm
Type 70–79; z/OS V1R8; Bit 5 of byte 49 of the RMF product section
topic is added to indicate whether zIIP processors are available on
the system.; Support of zIIP processors
Type 70 (RMF™ Processor Activity); z/OS V1R8; New fields: In subtype
1, the following sections are extended to support new information for
group capacity limit:
CPU Control Section
PR/SM Partition Data Section
Also in subtype 1, the following sections are extended to support new
information for zIIP processors:
CPU Control Section
CPU Data Section
CPU Identification Section;
Release update and support of zIIP processors ;
http://publib.boulder.ibm.com/infocenter/zos/v1r10/index.jsp?topic=/com.ibm.zos.r10.e0za100/chnewfu.htm
Description: By exploiting the CF architected level 15 (CFLEVEL15),
RMF provides additional data in the Monitor III Coupling Facility
reports and the Postprocessor Coupling Facility Activity report. For
example, the reports display coupling facility utilization per
structure and whether dynamic coupling facility dispatching is turned
on. In addition, RMF provides new overview conditions for the
Postprocessor based on SMF record 74-4.
When change was introduced: Integrated in z/OS V1R9 and available in
z/OS V1R8 with APAR OA17070.
http://www-01.ibm.com/support/docview.wss?uid=isg1OA17070
Repeats the info in the first post.
---
Also, my question, zXXX hardware would use Assist processors before CP
to drive the cost down. Is this prioritization implemented in
Hercules, or does it JUST RUN without considering the workload?
On Tue, Jun 23, 2009 at 11:01 AM, Fish <fish@...> wrote:
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> David Kreiss wrote:
>
> > A DM=CPU should tell the story.
> [...]
> > If the D M=CPU under Hercules doesn't show these as the
> > correct processor types the results would be as seen.
>
> And therein is the problem: the D M=CPU display does show the "+I"
> for processor 7, but yet their total chargeable time isn't any less.
> Their total time is the same whether a zIIP is defined in Hercules or
> not.
>
> On a real machine they're different. On a real machine with a zIIP
> the chargeable time ("SRB time" I think they called it?) is very
> small, leading them to confidently conclude their program/workload is
> indeed running on the zIIP, but on Hercules, whether a zIIP is define
> or not makes no difference: the chargeable time is always the full
> amount! (even though as I explained it appears as if the o/s does
> know the zIIP exists since it's appearing properly in the D M=CPU
> display).
>
> The big question is WHY this behavior occurs? What is Hercules doing
> wrong?
>
> Or are they doing something wrong? Do they need to configure
> something in the o/s that they possibly forgot to do?
>
> Where should I start looking?
>
> TIA
>
> - --
> "Fish" (David B. Trout) - fish@...--
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?
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Type 70–79; z/OS V1R8; Bit 5 of byte 49 of the RMF product section
topic is added to indicate whether zIIP processors are available on
the system.; Support of zIIP processors
Type 70 (RMF™ Processor Activity); z/OS V1R8; New fields: In subtype
1, the following sections are extended to support new information for
group capacity limit:
CPU Control Section
PR/SM Partition Data Section
Also in subtype 1, the following sections are extended to support new
information for zIIP processors:
CPU Control Section
CPU Data Section
CPU Identification Section;
Release update and support of zIIP processors ;
http://publib.boulder.ibm.com/infocenter/zos/v1r10/index.jsp?topic=/com.ibm.zos.r10.e0za100/chnewfu.htm
Description: By exploiting the CF architected level 15 (CFLEVEL15),
RMF provides additional data in the Monitor III Coupling Facility
reports and the Postprocessor Coupling Facility Activity report. For
example, the reports display coupling facility utilization per
structure and whether dynamic coupling facility dispatching is turned
on. In addition, RMF provides new overview conditions for the
Postprocessor based on SMF record 74-4.
When change was introduced: Integrated in z/OS V1R9 and available in
z/OS V1R8 with APAR OA17070.
http://www-01.ibm.com/support/docview.wss?uid=isg1OA17070
Repeats the info in the first post.
---
Also, my question, zXXX hardware would use Assist processors before CP
to drive the cost down. Is this prioritization implemented in
Hercules, or does it JUST RUN without considering the workload?
On Tue, Jun 23, 2009 at 11:01 AM, Fish <fish@...> wrote:
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> David Kreiss wrote:
>
> > A DM=CPU should tell the story.
> [...]
> > If the D M=CPU under Hercules doesn't show these as the
> > correct processor types the results would be as seen.
>
> And therein is the problem: the D M=CPU display does show the "+I"
> for processor 7, but yet their total chargeable time isn't any less.
> Their total time is the same whether a zIIP is defined in Hercules or
> not.
>
> On a real machine they're different. On a real machine with a zIIP
> the chargeable time ("SRB time" I think they called it?) is very
> small, leading them to confidently conclude their program/workload is
> indeed running on the zIIP, but on Hercules, whether a zIIP is define
> or not makes no difference: the chargeable time is always the full
> amount! (even though as I explained it appears as if the o/s does
> know the zIIP exists since it's appearing properly in the D M=CPU
> display).
>
> The big question is WHY this behavior occurs? What is Hercules doing
> wrong?
>
> Or are they doing something wrong? Do they need to configure
> something in the o/s that they possibly forgot to do?
>
> Where should I start looking?
>
> TIA
>
> - --
> "Fish" (David B. Trout) - fish@...
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?
------------------------------------
Community email addresses:
Post message: hercules-390@...
Subscribe: hercules-390-subscribe@...
Unsubscribe: hercules-390-unsubscribe@...
List owner: hercules-390-owner@...
Files and archives at:
http://groups.yahoo.com/group/hercules-390
Get the latest version of Hercules from:
http://www.hercules-390.org
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/hercules-390/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/hercules-390/join
(Yahoo! ID required)
<*> To change settings via email:
mailto:hercules-390-digest@...
mailto:hercules-390-fullfeatured@...
<*> To unsubscribe from this group, send an email to:
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<*> Your use of Yahoo! Groups is subject to:
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