Re: Interchange best practice? (was: GIT ... length issue)

zsh has a minor advantage of being the new default MacOS shell. (I still use bash - in a basic way - and see no impetus to move.) Cheers, Martin Sent from my iPad > On 10 Dec 2019, at 04:33, David Crayford wrote: > > On 2019-12-10 3:18 AM, Seymour J Metz wrote: >> Does anybody outside of the

Re: URL for DCF manuals

At the risk of starting a flame war :-) ... "I like Markdown. But I _love_ LaTex." Most people don't want the writing complexity of the latter. And rather more tooling supports the former. (I, too, like the expressiveness of the latter.) Cheers, Martin Martin Packer zChampio

Re: z15 System Recover Boost

s at least one slide. :-) Outline of the above discussed at length on that call. And a parting thought: When my team sees a crop of z15 machines we'll note whether SRB is on for each LPAR and how well we think it's used round any IPLs we see. Cheers, Martin Martin Packer zChampion, Systems Invest

Re: WLM Guidance/Suggestions ! ! !

it). If you really want to dole out specific proportions of the CPU you're probably talking about Resource Groups, though I'd not be that keen on that approach. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin

Re: How many ways can one sentence be wrong dept

I’m wondering about channel program efficiency, though I have no evidence this is a major thing. Martin Packer > On 12 Jan 2020, at 18:59, Matt Hogstrom wrote: > > Out of curiosity, its been a while since I did storage admin but it occurred to me that for the most part a lot of

Re: RUCSA

That rather implies segment-level protection, rather than page. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://www.ibm.com/developerw

Re: Why rip out COBOL when you can modernize key applications? - Weirdware

I wonder if specifying this leads to compilers doing (optimised) tail-recursion - where appropriate. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker

Re: Print/copy one record of each type/subtype

1,1,0,0, 13, 12,1,0,0, 14, 15,1,0,0, 15,13588,0, 240,0, (Apologies if this unformats itself.) Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troub

Re: DFSORT? Rexx? Re: Print/copy one record of each type/subtype

Since z/OS 2.1. I've been using it since then. I have some code I intend to open source that relies on REXX against VBS (SMF). Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Face

Re: Print/copy one record of each type/subtype

t/position in the SMF record header. I'd consider it "quasi-architected" in that some record types play fast and loose with this. 30 and 7X DON'T. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm

Re: Free 3270 emulator for Mac OS

Note: xQuartz hasn’t been updated in FOREVER. While I use it, I’m nervous of this fact. (I use xQuartz and x3270 on Catalina, without problems, by the way.) Sent from my iPad > On 4 Apr 2020, at 17:38, Jack J. Woehr wrote: > > On 4/4/20 9:51 AM, Paul Gilmartin wrote: >> I tried building x3270

Re: Wanted Civil programmers in New Jersey urgently

the application scale was the urgent and safer thing. Yes, I realise application changes can be necessary to make something scale but then we're back to desperation. :-( Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin

Re: DFSMShsm high CPU consumption

type of task - obviously long before Parallel Sysplex. I wonder if such an approach could control WHERE the CPU is consumed, as much as how much. Probably doesn't help the OP, though. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802

Re: z/OS performance question

hey might cause you to look at overall CF Busy (from 74-4 rather than 70-1, though the latter would matter for SHARED CF images). Hoping this is useful. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pa

Re: S0F9 and SOFD ABENDs and SVC dumps - oh my!

This is the whole "bound to another address space" issue. Does it matter what sequence you take the address spaces down in? And I wonder if the same applies to Db2 and MQ. (I would guess not as the binding/attachment must be different.) Cheers, Martin Martin Packer zChampio

Re: S0F9 and SOFD ABENDs and SVC dumps - oh my!

As much to the point, why does this need to be 24-bit LSQA? Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://www.ibm.com/developerw

Re: S0F9 and SOFD ABENDs and SVC dumps - oh my!

t; - would prolong the outage. I have to ask, though, what is different about DB2 where DIST and DBM1 address spaces have many hundreds of balls in the air? (DIST through DBATs and DBM1 through prefetch, deferred write, castout engines.) Cheers, Martin Martin Packer zChampion, Systems In

Re: IBM Developerworks is gone!

Some of us took our own backups and re-hosted them... Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Pod

Re: 3270 terminals: CUT vs. DFT

I think customers really liked InfoWindow because they were the first terminals to offer a 3-year guarantee. IIRC that was a big selling point. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm

Re: 3270 terminals: CUT vs. DFT

a server x3270 could talk to. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Podcast Series (With Marna W

Re: IGGCSI00 and REXX

To reveal a little more, what I might open source is a particular RMF SMF record - with its own quirks. :-) But only a few per interval. Which narrows it right down. :-) Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 e

Re: IGGCSI00 and REXX

I might be about to open that can of worms permanently (SMF and REXX) ... :-) Seriously, I have a few tips and tricks on processing SMF with REXX. And I’m aiming to open source something. It’s not quite ready and it will be the START of something, not a finished journey. (The idea being others

Re: OT: Mandatory Work From Home at my company

attached to them. (Third computer will be my ancient 12.9" iPad Pro - just as soon as I can get iPad OS 13.4 installed.) This might help you - as a future consideration. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: m

Re: BatchPipes and TSO Pipes

You're best of searching with the string "batchpipeworks" as that's what it was called when SmartBatch was created. I believe the term survived into BatchPipes/MVS V2. Not all CMS Pipelines functions are supported. Cheers, Martin Martin Packer zChampion, Systems Investigator &am

Re: z/OS performance question

And how about LPAR effects for the coupled z/OS images? If starved for CPU presumably all this can go South very fast. (This is certainly true when we’re talking about CF so is probably true - whether CTCs or CF structures - with XCF. Cheers, Martin Sent from my iPad > On 2 May 2020, at 22:28,

Re: IEALIMIT Linkedit Example?

I wonder why it was recompiled THEN. :-) Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://www.ibm.com/developerworks/mydeveloperworks/b

Re: Can you set a FIXED dispatching priority using WLM?

No. Why would you want to? Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, Topics Podcast Se

Re: EXTERNAL EMAIL: Max possible velocity?

Hello Shivang! Either LPAR busy or - my preferred metric and embedded in my regular graphing - how much CPU the service class is taking. Certainly the general point of considering what you’re achieving in velocity terms, why, and how it varies under increasing load is a good one. I would also

Re: Max possible velocity?

I’ve seen plenty of things running above 50 - in lots of customers worldwide. Typically Db2 Engine service class, particularly where I/O Priority Queuing is enabled. In that latter case to would be VERY disappointing to see attainment as low as 50% - as it would probably be caused by Delay for

Re: SORT question: How to both remove records from a file AND write removed records to a 2nd output?

Right. That example used BatchPipes/MVS pipes - but it's not essential to the use of OUTFIL SPLIT. The reason it used pipes was to enable cloning to balance a pipe. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin

Re: SORT question: How to both remove records from a file AND write removed records to a 2nd output?

ut, using OUTFIL INCLUDE=/OMIT= and SAVE. Just some thoughts from someone who's loved playing with what DFSORT can do but has never actually been a DFSORT developer. * Augustus De Morgan founded the Maths Department at UCL, where I learnt a trick or two. :-) Cheers, Martin Martin Packer Systems I

Re: SORT question: How to both remove records from a file AND write removed records to a 2nd output?

No, that would have to be another job, also specifying eg SUBSYS=PIPE. And scheduled to run alongside the sort. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker

Re: Batchpipes (was: SORT question: ...)

created or create data that is just about to be read sequentially. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainf

Re: DFSort to pull the latest record date

Excel is awful to use. I would recommend doing as much as possible elsewhere before loading into Excel. (Including what some of my code does: Creating the CSV files in DFSORT.) Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 e

Re: SORT question: How to both remove records from a file AND write removed records to a 2nd output?

Sometimes "in a parallel universe" can mean "in this universe"... :-) It would be poacher turned, ahem, poacher... :-) Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Fa

Re: SORT question: How to both remove records from a file AND write removed records to a 2nd output?

, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, Topics Podcast Series (With Marna Walle): https://ancho

Re: REXX Interpret Question - weekend 'fun'

I've found returning from a procedure a string with a set of assignments separated by semicolons quite useful. I guess you're doing something similar. (My canonical example is a sorted array returned as a sequence of assignments to the new array. Cheers, Martin Martin Packer zChampion

Re: Sept 2020 ZOWE performance PTFs

Hence “In like Flynn” in Uncharted 2. :-) Well, it IS Friday... :-) Cheers, Martin > On 22 Oct 2020, at 21:07, Ken Smith wrote: > > Are you referring to > > Z.O.W.I.E. (Zonal Organization World Intelligence Espionage)? They’re the > good guys and employ Superagent Derek Flint. Dipicted in

Re: DFSORT Question

Then I'm worried for you. :-) Actually, this thread has been useful to me: The idea of the "portability" of BUILD and OVERLAY versus the older forms came to me because of it. We'll see how useful that actually it... :-) Cheers, Martin Martin Packer Systems Investigator &am

Re: DFSORT Question

Quick synopsis: * BUILD creates the record from scratch. Also the same as INREC, OUTREC, OUTFIL OUTREC - but nice in that you could move it from one to another. * OVERLAY overwrites specified fields. Similarly movable. Hoping this helps. Cheers, Martin Martin Packer Systems Investigator

Re: Syncsort to DFSORT - my time has come.

FWIW I would go with SMF=FULL - unless you have an exceptionally large number of sorts - or tight SMF space restrictions. There’s gold in them there records. :-) Cheers, Martin Sent from my iPad > On 27 Oct 2020, at 21:13, Frank Swarbrick wrote: > > Here is our ICEPRM00, if you are

Re: Remember the 9370?

It had the PS/2 design language as well. A retail customer of mine - in London Central Branch - had one. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker

Re: Remember the 9370?

Configurator needed HONEing? :-) (IGMC) Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Podcast Se

Re: Remember the 9370?

In that sense it was rather like the AS/400 - and from the same era. Before the - nicer to my eyes - black machine aesthetic kicked in. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twi

Re: OT: OOBOL and English was Re: Still COBOL After All These Years?

Except speed limits only became a thing long after y'all got together. I wonder how deciding what is a state, county, township prerogative and what is a federal one works. Probably on a (legal) case by (legal) case basis. Cheers, Martin Martin Packer zChampion, Systems Investigator

Re: OT: OOBOL and English was Re: Still COBOL After All These Years?

-productive. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Podcast Series (With Marna Walle): h

Re: WP vs MS [was:: Quote style (was: ... Passive FTP ... )]

in Python 3. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Podcast Series (With Marna Walle): h

Re: SDSF CPU L/Z

Source RMF fields in the help text would be, ahem, helpful. :-) And if they derive from MVS control blocks those field names would be useful, too. And if MVS gets them from indeed Diagnose 204... :-) Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troublesho

Re: SMF 71 long floating point fields

What does the first byte look like, typically? I'm guessing 4X hex. Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: h

Re: SMF 71 long floating point fields

So, from the “RBCHAR” this is hex floating point. So with ‘45’ the First 5 nibbles of the rest are before the point. I’m wondering what this field is that it should have a fractional part. (I guess I should look it up.) Sent from my iPad > On 11 Jun 2020, at 20:59, Barry Merrill wrote: > >

Re: SMF 71 long floating point fields

Aargh! "Nybbles" me dummy. :-) (And I know how this is going to go: The word "nybbles" will be debated to death on IBM-MAIN now. TGIF. :-) ) Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email:

Re: Messages & Codes (was Re: "Everyone wants to retire mainframes")

I wonder, though, whether newbies can easily tell the difference between eg "DFS" and "DFH". Particularly poignant, that pair. :-) So we all know "ICH" and, latterly "IRR", (FSVO "latterly" :-) ) are RACF. But do newbies pick this up quickly?

Re: OOBOL and English was Re: Still COBOL After All These Years?

So you don't rate decimal arithmetic? :-) So how do you explain dollars and cents? :-) Cheers, Martin (GDAR) Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: h

Re: OOBOL and English was Re: Still COBOL After All These Years?

Then the 440 yard and 880 yard races would've meant nothing to you at school. :-) Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: h

Re: OOBOL and English was Re: Still COBOL After All These Years?

far the non-decimal usefulness goes. :-) Probably they don't talk about "hundredweight" or "groats" or "florins" either. :-) Cheers, Martin Martin Packer zChampion, Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.

Re: Possible new function for DFSORT?

If it were me I’d probably extract the IP addresses, use another program to look them up, then do a DFSORT / ICETOOL JOIN on the original report and the looked up IP addresses / domains. (And take any ambiguity as inevitable dirtiness in the data.) Cheers, Martin (NOT a DFSORT developer) Sent

Re: Group Capacity setting dropped

Corroborating SMF 70 is a good source for this - as we use it in our code, too. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: h

Re: does anyone recall any details about MVS/XA?

The folklore was 1 bit per year - in demand terms. It probably still is. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics

Re: System Boost Question

. At any rate, that's not what SRB supports. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, To

Re: Offsets SMF17

cords found": 1) The INCLUDE / OMIT is wrong. 2) There genuinely are no matching records. And, because this is SMF, are you sure the INCLUDE fields are genuinely in fixed positions? Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 ema

Re: Using accounting information in WLM classification rules

would help in this case.) Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, Topics Podcast Seri

Re: Using accounting information in WLM classification rules

In that case SMF 30 will have the Accounting Information in - so you can assess its usefulness. I'll leave it to someone else - with practical experience - to discuss how to encode it. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 e

Re: DFSORT and SAS

I'd ask over on MXG-L if there are methods for SAS to pass the record count and average record length estimate to DFSORT. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPa

Re: Format SMF record 99

The OP didn't specify which subtype(s). For example, 99-14 is very different from 99-6. And, having worked with 99-14 a fair amount, it has quite a complicated layout. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email

Re: DFSORT and SMF date selection

Also DFSORT gives you more record selection flexibility than IFASMFDP / IFASMFDL. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https

Re: SMF 30 record

Right. Go with IIP and IFA. SUP will do fine for IIP. Ignore ZCBP. The fields haven't changed. (I haven't seen a zAAP in a long time, though.) Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com

Re: SMF 30 record

This is why my presentation today is called "zIIP Capacity & Performance", of course. :-) Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacke

Has NIP / IPL changed in "recent" years? Was: Dr. Robert Rannie's diagram of NIP was Re: Diagram of MVS Control Blocks

Would this even remain accurate? It's a question I genuinely don't know the answer to: I suspect NIP has changed little. IPL has, I think, changed in detail (but I don't recall how). Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802

Re: SMF fields of RMF Subchannel Activity Report

Subchannel busy (as opposed to busy CONDITIONS) is estimated from request rate and service time multiplied together. I think we'd all like to know the purpose of this, though. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 e

Re: Upgrade from z/os 2.3 to 2.4 decrease PVT storage

Also SMF 78-2 is pretty useful here. You could see the trend and what drove it. Both above and below the line. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs

Re: Debugging "A high error rate was detected on the Optical Link network." HMC alert

. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, Topics Podcast Series (With Marna

Re: WAS v9 EAR Auto Deployment

Who is Kumar? :-) Seriously, you sent this to the IBM-MAIN newsgroup; I don't know if you intended to. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker

Re: Colours on screen (mainframe history question)

Perhaps if you grease lightning it turns green. :-) TGIM. :-) Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe

Re: Colours on screen (mainframe history question)

ren't used. But for what? Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, Topics Podc

Re: Colours on screen (mainframe history question)

Green snow storms. :-) Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, Topics Podcast

Re: IBM snew DOC Web SIte

I'm not really affiliated with the docs people but I have to ask: Are you sure this is client-side that's slow? Could well be server side or network. WASM, while fine, might not be relevant. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44

Re: More documentation problems

different treatment for these pages than any others. But "breaking the back button" is indeed a web UI no-no. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Fa

Re: IBM snew DOC Web SIte

I'm not happy with the performance, either, judging by my experience this morning. But 7 seconds doesn't sound like a client side issue. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter

Re: WLM Service Classes

We normally put it this way: Too many ACTIVE service class periods with too little work in each of them makes it difficult for WLM to be helpful. Cheers, Martin Martin Packer Systems Investigator & Performance Troubleshooter, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twi

Re: 3277 graphics

, in Central London. Now we'd consider that "obtuse" routing humdrum.) :-) Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker B

Re: SMF field data

I think it's perfectly valid to have a blank QWHCEUWN - End User Workstation Name. What Db2 connection type (QWHCATYP) and reason for invoking accounting (QWACRINV) values do you have? Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802

Re: SMF field data

Having been that novice several times over :-) I agree with you. Hopefully I got it right in https://github.com/MartinPacker/Db2-DDF-Analysis-Tool. If not it's open source so someone can correct it... :-) Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM

Re: SMF field data

makes sense. For example, what would the End User Workstation ID be for a batch job? Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https

Re: SMF field data

. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, Topics Podcast Series (With Marna Walle

Re: OMVS Sort Question

Pipe it through two sort commands? And does sort helpfully avoid rearranging records with the same key value? Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs

Re: REXX - Interpret or Value - Which is better?

My main use case for interpret is passing back a string with stem variable assignments from a procedure. Then the caller of the procedure interprets the string - which has semicolons to separate the assignment statements. I don't much like it but it seems the best I can do. Martin Packer WW z

Re: RMF SMF "broken" records

Yes. That's what the re-assembly area is for in RMF SMF records. And yes 30 and 42-6 split the data that won't fit into a VBS record up. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter

Re: IPL's POR's frequency

why all the LPARs on a machine I have SMF for get re-IPLed at roughly the same time. :-) Socially, I'd say fortnightly or monthly are very common. Weekly is rare now, quarterly is a significant proportion. As is "as and when". Cheers, Martin Martin Packer WW z/OS Performance

Re: RMF SMF "broken" records

If it's RMF you have the re-assembly area. If it's SMF 30 you have a similar mechanism. But this isn't architected by SMF. And you're right the granularity is 1/100th of a second. Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email

Re: RMF SMF "broken" records

Welcome to the murky world... :-) Off topic but are there usable start and stop timestamps for things running in BPXAS address spaces? I've wondered about z/OS Unix substeps and thingies but not had cause to dig too deep. (I know where I am with conventional batch jobs and steps when it comes

Re: RMF SMF "broken" records

Thanks! That's a much crisper version of what I had roughly surmised. That's an interesting case in the blog post. I wonder if bash has been / could be fixed. (Not that I run it on z/OS or write loops in it on Pi.) Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture

Re: RMF SMF "broken" records

. And the fields in that area will tell you all you want to know. If it's not RMF then I don't quite know if there even are broken records nor what support there is for re-assembly. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584

Re: IPL's POR's frequency

I believe that happened to a customer in San Francisco during the World Series Quake. I never found out who the customer was. It wasn't you, was it? Cheers, Martin Sent from my iPad > On 14 Sep 2021, at 21:23, Tony Thigpen wrote: > > Fun item. Worked at a school board where we had a

Re: IPL's POR's frequency

It's amazing to think a machine could effectively be powered up continuously for quite a few years - even if it's not neglected. Amazing and good. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac

Re: SMF field data

I'm not aware of anything., I'd talk to BMC about this but I suspect it's how the clients are set up. You also didn't say what client connection types. Also it could be a Db2 bug. Again, not being a Db2 specialist, I wouldn't know about a Db2 bug. Cheers, Martin Martin Packer WW z/OS

Re: The Business Case for Pipes in the z/OS Base (was: Re: REXX - Interpret or Value - Which is better?)

I'm not familiar with FANOUT but if it writes a record to, say, two destinations, it's got to copy one of them. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs

Re: [IBM External] Re: IPL's POR's frequency

Doesn't Dynamic LPA cover this? Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance

Re: zPDT Learner's Edition

also contemplate. Cheers, Martin Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, Topics Podcast

Re: [IBM External] The Business Case for Pipes in the z/OS Base (was: Re: REXX - Interpret or Value - Which is better?)

Martin Packer WW z/OS Performance, Capacity and Architecture, IBM Technology Sales +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://mainframeperformancetopics.com Mainframe, Performance, Topics Podcast Series (With Marna Walle): https

Re: [IBM External] Re: SIGP Orders

As a matter of interest, what typically happens on the SIGP'ed to processor when a SIGP is issued? I assume some kind of routine runs. Cheers, Martin Sent from my iPad > On 14 Oct 2021, at 03:24, Jim Mulder wrote: > > It is assigned. > It is used by z/OS. > It is intentionally not described

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