Portal | Manuals | References | Downloads | Info | Programs | JCLs | Master the Mainframes
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Usergroups Profile Log in to check your private messages Log in
 

 

"Extended Monitor Facility"

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> All Other Mainframe Topics
View previous topic :: :: View next topic  
Author Message
Ricardo Viegas

New User


Joined: 18 Oct 2012
Posts: 33
Location: Brasil

PostPosted: Fri Dec 19, 2014 10:22 pm    Post subject: "Extended Monitor Facility"
Reply with quote

Since its first appearance, at the SMF manual (SA22-7630-18, Oct/2008, for z/OS-1.10), until the last version of the manual for the z/OS-1.13 (SA22-7630-26, Sep/2012), the description of the SMF record type "113" (CPUMF) has the following opening phrase:
"The system writes record type 113 to record hardware capacity, reporting, and statistics for IBM System z10™ or later machines."

Afterwards, for all the z/OS-2.1 versions (SA38-0667-xx), the opening phrase is now:
"The system writes record type 113 to record hardware capacity, reporting, and statistics for IBM System z10™ or later machines. With the Extended Monitor Facility released with the IBM z196, the SMF record can be utilized to capture software events."

I ran through all the MVS manuals, the z196 and zEC12 technical guides (redbooks), the CPUMF manuals/documentation and the IBM Web site for the expression "Extended Monitor Facility" without any results.

Does anybody has any idea what is "Extended Monitor Facility"? (only available at z196, or available begining with the z196)

Thanks!
Regards, Ricardo
Back to top
View user's profile Send private message

nevilh

Active User


Joined: 01 Sep 2006
Posts: 258

PostPosted: Sun Dec 21, 2014 11:47 pm    Post subject: Reply to: "Extended Monitor Facility"
Reply with quote

Have you had a look at Redbook
Setting Up and Using the IBM System z CPU Measurement Facility with z/OS
Back to top
View user's profile Send private message
Ricardo Viegas

New User


Joined: 18 Oct 2012
Posts: 33
Location: Brasil

PostPosted: Mon Dec 22, 2014 12:49 am    Post subject:
Reply with quote

I forgot to mention (in my previous posting) that I checked too the redbook you mentioned. Sorry about that!
Back to top
View user's profile Send private message
Robert Sample

Global Moderator


Joined: 06 Jun 2008
Posts: 7913
Location: Bellevue, IA

PostPosted: Mon Dec 22, 2014 4:18 am    Post subject:
Reply with quote

There is a reference to the System Commands manual in the manual you cited in your post. In that reference, I find
Quote:
Setting up hardware event data collection

z/OS MVS System Commands
SA38-0666-00

Hardware instrumentation services (HIS) is a function that collects hardware event data for IBM® System z10™ or later machines.

Before you start the HIS data collection, you may first need to authorize to the sampling facilities and counter set types you want to use through the support element (SE) console. For information about how to set up the authorization of the sampling facilities and counter sets, see Support Element Operations Guide for System z10 machine on the Resource Link home page.

Start of change In addition, with the enhanced-monitor facility hardware released with z196 machines, the HIS function expands into a z/OS software event data collector that will be used by IBM for improved problem analysis. The z/OS event counters are viewed as an additional hardware counter set, and there is no authorization required to use the hardware. End of change
You might want to look at "enhanced-monitor" or "enhanced monitor" -- when I Googled "enhanced-monitor" z196 I found
Quote:
z/OS Software Counters from HIS

The Enhanced Monitor Facility (EMF) introduced on z196
turns a monitor class into a “software driven counting facility”

z/OS uses this to count specific software events. For example:
• Number of times a particular SVC is issued
• Number of times a task or SRB is dispatched
• Number of times a particular lock is obtained

Because of the use of Monitor Call to request counting, the overhead
is near zero when not activate.

Because of EMF, the overhead is very low even when counting is
software event active.
• HIS encapsulates these counts as the ZOS Counter Set

The HIS Profiler writes to the .CNT file and SMF Type 113 record,
when requested via CTRSET=(ZOS).

Currently, what each counter means is IBM internal only
Back to top
View user's profile Send private message
Ricardo Viegas

New User


Joined: 18 Oct 2012
Posts: 33
Location: Brasil

PostPosted: Mon Dec 22, 2014 10:05 pm    Post subject:
Reply with quote

Robert, thanks for your hint!
I was looking for "Extended Monitor Facility" (as mentioned in the SMF manual), but the correct name and/or the most used one (as mentioned in your posting) is "Enhanced Monitor Facility".
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> All Other Mainframe Topics All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts COOLGEN - TSO TEST FACILITY indianrajput CA Products 4 Wed Nov 02, 2016 9:28 pm
No new posts Amount field is getting corrupted whe... thesumitk SYNCSORT 5 Tue Oct 18, 2016 8:20 pm
No new posts hot to get details when "EXEC CI... Andi1982 CICS 11 Tue Sep 20, 2016 5:01 pm
No new posts Multi row fetch - "for read only... Nileshkul DB2 3 Sun Aug 14, 2016 12:52 am
No new posts "DFSRRC00 vs IKJEFT01" for ... arunsoods All Other Mainframe Topics 5 Fri Aug 12, 2016 9:54 pm


Facebook
Back to Top
 
Mainframe Wiki | Forum Rules | Bookmarks | Subscriptions | FAQ | Tutorials | Contact Us