IFAHONORPRIORITY (Was: Re: zAAP Eligible Work)
Below, Tom posted the book's description of the original implementation of IFAHONORPRIORITY. But customers told us that they would much prefer that we filled up the zAAPs before using CP resource for Java workload. So in z/OS R8, and also with APARs OA14131 and OA13953 for z/OS R6 and R7, we changed it to do that (more or less): *YES* Specifies that standard processors run both zAAP processor eligible and non-zAAP processor eligible work in priority order when the zAAP processors indicate the need for help from standard processors. The need for help is determined by the alternate wait management (AWM) function of SRM for both standard and zAAP processors. Standard processors help each other and standard processors can also help zAAP processors if YES is in effect. Specifying yes does not mean the priorities will always be honored because the system manages dispatching priorities based on the goals provided in the WLM service definition. AWM should not be disabled when IFAHONORPRIORITY=YES is in effect. See the description for parameter CCCAWMT for a description of AWM. If zAAP processors are defined to the LPAR but are not online, the zAAP processor eligible work units are processed by standard processors in priority order. The system ignores the IFAHONORPRIORITY parameter in this case and handles the work as if it had no eligibility to zAAP processors. The zAAP processor eligible processor times are reported in RMF and SMF for planning purposes. Standard processors can also run zAAP processor eligible work (even if IFAHONORPRIORITY is set to NO), if necessary to resolve contention for resources with non-zAAP processor eligible work. IBM suggests that you specify or default to IFAHONORPRIORITY=YES. *NO* Specifies that standard processors will not examine zAAP processor eligible work regardless of the demand for zAAP processors as long as there is standard processor eligible work available. Tom Moulder wrote: Something else to consider are two IEAOPTxx parameters for WLM control of zAAP eligible workloads. IFACROSSOVER controls whether standard CPs will be used for zAAP eligible work. If YES (the default), then standard CPs will be used along with zAAP CPs. zAAP CPs will be preferred, but standard CPs are not excluded from consideration based on workload. If NO, then standard CPs are not considered for zAAP eligible work unless there are no zAAP CPs present. IFAHONORPRIORITY controls the workload priority settings for zAAP eligible work that is executed on standard CPs. If YES (the default), then all work on a standard CP will execute based on WLM assigned priority. If NO, then all zAAP eligible work that is assigned for execution on a standard CP will be scheduled at a lower priority than non-zAAP eligible workloads. snip -- John Eells z/OS Technical Marketing IBM Poughkeepsie [EMAIL PROTECTED] -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: IFAHONORPRIORITY (Was: Re: zAAP Eligible Work)
Thank you John, I was not aware of those changes. Tom Moulder -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of John Eells Sent: Friday, April 13, 2007 7:59 AM To: [EMAIL PROTECTED] Subject: IFAHONORPRIORITY (Was: Re: zAAP Eligible Work) Below, Tom posted the book's description of the original implementation of IFAHONORPRIORITY. But customers told us that they would much prefer that we filled up the zAAPs before using CP resource for Java workload. So in z/OS R8, and also with APARs OA14131 and OA13953 for z/OS R6 and R7, we changed it to do that (more or less): -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.3.0/758 - Release Date: 4/12/2007 11:52 AM -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
-Original Message- From: IBM Mainframe Discussion List On Behalf Of Jim Marshall Went off to one of my ISV vendors and asked if the JAVA coding in their product would be run on the zAAP processor I am implementing on my two z9BC machines. The response was In order for XXX to use the ZAAP engines, it would have to be started in a special enclave eligible for ZAAP processing. We don't do that. Does this ring a bell with anyone as being a true statement. Sounds like it got confused with how work becomes eligible for running on a zIIP (SRB enclave). AFAIK (which ain't very far), the z/OS JVM decides what runs on the zAAP, and Java code runs in a JVM. -jc- -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Are you aware of what other work might be zAAP eligible? John, publicly, no. The only workload that I know of today is Java. Publicly or privately the answer is still no. zAAP processors run JAVA code in the IBM-supplied JVM. Period. IBM has disclosed statements of direction concerning certain functions that may become eligible to run on the offload engines in a future release but as far as I know zAAPs will still be JAVA only. As Ed mentioned somewhere earlier, the interface to the zAAP has not been disclosed - although a few people outside IBM have a pretty good idea how it works. For all practical purposes it is a private interface between the JVM and the dispatcher and even though we know how it works, it would be a direct violation of the TCs to even try to circumvent it. In contrast, the interface to the zIIP -is- disclosed to vendors under license. Meaning we know but we can't tell you. Both are intentionally limited in the work they can run. it's touted as a Java processor, 'cuz that's the only thing using it today. Read between the lines from this redbook: Don't bother reading between the lines. It's touted as a JAVA processor because it is a JAVA processor. It is just an ordinary z cpu engine, but the OS makes sure that only JVM work runs on it. Ergo it's a JAVA processor. If it were only destined to be a java processor, sans any copyright considerations or politically correct names, I would have expected a name like zJAP (LOL). Now, on the other hand, they hit the nail on the head when they named the IFL. It's an application assist processor, or formally, integrated facility for applications - read between the lines - reduce mainframe TCO - don't charge for software - more open source leverage... blah, blah, blah. The zAAP -name- came very late in the game. When it was first disclosed to us it was called an IFA, which probably stood for integrated facility for applications as you suggest. However, after the marketers had their way with it, the name became zAAP. That happens a lot. The lesson is not to read any intelligent meaning into the names. Often enough the names are just the product of a fevered marketing brain. CC -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Craddock, Chris wrote: snip The zAAP -name- came very late in the game. When it was first disclosed to us it was called an IFA, which probably stood for integrated facility for applications as you suggest. However, after the marketers had their way with it, the name became zAAP. That happens a lot. The lesson is not to read any intelligent meaning into the names. Often enough the names are just the product of a fevered marketing brain. snip ...then again, though I've no idea what happened in this case (despite my job title and my perhaps sometimes-fevered brain, I'm not actually in Marketing), sometimes the original name does not make it through the name search and it gets changed for that reason. And IIRC, IFA did indeed originally stand for what you suggested above. -- John Eells z/OS Technical Marketing IBM Poughkeepsie [EMAIL PROTECTED] -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Todd Burch wrote: If it were only destined to be a java processor, sans any copyright considerations or politically correct names, I would have expected a name like zJAP (LOL). Now, on the other hand, they hit the nail on the head when they named the IFL. The original name was 'JAF'. I made a joke during the disclosure that, when IBM would eventually decide to extend the technology with 'Functional Extensions' (JAFFE), I would not claim infringement of any sort. By the time the hardware and software was developed/tested, it had been renamed to 'IFA'. That name persists today. The official name was changed to 'zAAP' by marketing people at (practically) the last minute. Far too late to make any sort of change in already-developed hardware and software. -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Todd Burch wrote: If it were only destined to be a java processor, sans any copyright considerations Since Java is trademarked by Sun, that's probably all it takes to furrow the brows of IBM lawyers. Hence no zJAP (or JAFFE, or anything that contains a J). -- David Andrews A. Duda and Sons, Inc. [EMAIL PROTECTED] -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
In my opinion, zAAPs, and zIIPS and zFLS and all of the newfangled processor type were created solely by IBM hardware gurus who could not get IBM Marketing to reduce the prices of their CPs and the software running on their CPs, and these hardware types knew that if marketing wasn't going to reduce the price of z/SYSTEM hardware, that they'd have no jobs in the future, and they invented these new engines, and all of the software scheduling, monitoring, managing, etc. so they could keep their jobs creating z/SYSTEM hardware. And of course, now, we users have to learn how to introduce these new engines, how to set parameters (e.g., this thread), how to select what work can be used on them, how to recover and account their costs, i.e., we have to spend our time (our money) on our people costs, which means our companies have to pay a lot more people money to save any hardware money on these cheaper engines. I can see NO virtue in these processors as technical designs, as the added software decision logic to decide on what to run where is unquestionably an unnecessary overhead, and technically we'd be far better served, with less overhead and no new people training costs, had IBM marketing instead reduced the prices of their CPs and associated CP-driven software costs. That the hardware guys had to invent these devices so they could be priced cheaper - now those guys do deserve great credit for solving a problem they shouldn't have had to solve - and for making it possible for future zSYSTEMS to exist in the artificial pricing world of IBM. Barry Merrill Herbert W. Barry Merrill, PhD President-Programmer Merrill Consultants MXG Software 10717 Cromwell Drive Dallas, TX 75229 www.mxg.com P.S. My opinion has been affirmed by many leading IBM Technicians, privately. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Barry wrote In my opinion, zAAPs, and zIIPS and zFLS and all of the newfangled processor type were created solely by IBM hardware gurus who could not get IBM Marketing to reduce the prices of their CPs and the software running on their CPs, and these hardware types knew that if marketing wasn't going to reduce the price of z/SYSTEM hardware, that they'd have no jobs in the future, and they invented these new engines, and all of the software scheduling, monitoring, managing, etc. so they could keep their jobs creating z/SYSTEM hardware. snip technically we'd be far better served, with less overhead and no new people training costs, had IBM marketing instead reduced the prices of their CPs and associated CP-driven software costs. That the hardware guys had to invent these devices so they could be priced cheaper - now those guys do deserve great credit for solving a problem they shouldn't have had to solve - and for making it possible for future zSYSTEMS to exist in the artificial pricing world of IBM. Weell... not quite. Your're dead right on all counts with respect to the costs and the overheads (naturally) but the idea didn't just spring fully formed from the hardware guys and it wasn't directly in response to Neanderthal marketing guys either. There was clearly a desperate need for a new pricing model and the simplest solution would just be to have different (SMF) accounting counters depending on what work was being done. However, that idea would not pass muster with the LAWYERS - who said, in effect, you can't charge two different prices for the same thing without getting us flayed by the DOJ. Leaving aside for a moment the question of whether that was really true in a legal sense (IBM doesn't seem to have any trouble at all in charging different prices for the same thing, to different customers all over the US and all over the world) there had to be a solution that involved a physically different configuration to attach prices to. Anyway, the hardware guys (and Bob Rogers, philosopher prince of the IBM brand organization) came up with this solution to a legal problem, not a technical problem. Bottom line on all of this is that software costs are the pink elephant in the middle of the room in every conversation with a customer these days. If they had not done something, whacky as it was, they would be in even deeper doo-doo than they (and we all) are now. CC -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Tom, You are correct that these IEAOPTxx parameters (added in z/OS V1R6) worked essentially as you described when zAAP was introduced. However, these descriptions are a bit dated. The meaning of the parameters was changed with z/OS V1R7, and the parameters were drastically changed with z/OS V1R8 (and with the ptfs that backfit z/OS V1R8 logic to V1R6 and V1R7). IFACROSSOVER now is ignored completely and is not in IEAOPTxx with V1R8. Regardless of IFAHONORPRIORITY, zAAP eligible work will execute only on zAAP unless Alternate Wait Management (as applied to the zAAP) decides that the zAAP needs help to get the work done. Only if the zAAP needs help will z/OS Dispatcher consider zAAP work for dispatching to CP. Even though there is not a ZIPHONORPRIORITY parameter, zIIP dispatching works as though YES had been specified. Additionally, see ZAAPAWMT and ZIIPAWMT in IEAOPTxx of z/OS V1R8 for additional possible specifications. Regards, Don ** Don Deese, Computer Management Sciences, Inc. Voice: (703) 922-7027 Fax: (703) 922-7305 http://www.cpexpert.org ** At 11:42 PM 4/12/2007, you wrote: Something else to consider are two IEAOPTxx parameters for WLM control of zAAP eligible workloads. IFACROSSOVER controls whether standard CPs will be used for zAAP eligible work. If YES (the default), then standard CPs will be used along with zAAP CPs. zAAP CPs will be preferred, but standard CPs are not excluded from consideration based on workload. If NO, then standard CPs are not considered for zAAP eligible work unless there are no zAAP CPs present. IFAHONORPRIORITY controls the workload priority settings for zAAP eligible work that is executed on standard CPs. If YES (the default), then all work on a standard CP will execute based on WLM assigned priority. If NO, then all zAAP eligible work that is assigned for execution on a standard CP will be scheduled at a lower priority than non-zAAP eligible workloads. I believe these parameters were added with z/OS 1.7. Tom Moulder -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
It will work on a z/990 for projecting how much work would be offloaded to either zAAPs or zIIPs. Shane Ginnane wrote: Sam, is this z9 only ??? What about projecting from z/990 ??? Shane ... Nope. Works fine on prior releases with the zIIP web deliverable and some APARs for z/OS and DB2 V8. We have been using this on z/OS 1.7.1 without any zIIP or zAAP installed to monitor eligible time. -Original Message- From: IBM Mainframe Discussio I beleive that PROJECTCPU is only for z/OS 1.8 and up. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Umm, I was sure that at the NCACMG meeting in March I heard that it was for 1.8. But I guess I mis-heard or got it confused with something else that was only available in 1.8. Knutson, Sam wrote: Nope. Works fine on prior releases with the zIIP web deliverable and some APARs for z/OS and DB2 V8. We have been using this on z/OS 1.7.1 without any zIIP or zAAP installed to monitor eligible time. Best Regards, Sam Knutson, GEICO Performance and Availability Management mailto:[EMAIL PROTECTED] (office) 301.986.3574 Think big, act bold, start simple, grow fast... -Original Message- From: IBM Mainframe Discussio I beleive that PROJECTCPU is only for z/OS 1.8 and up. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
zAAP Eligible Work
Went off to one of my ISV vendors and asked if the JAVA coding in their product would be run on the zAAP processor I am implementing on my two z9BC machines. The response was In order for XXX to use the ZAAP engines, it would have to be started in a special enclave eligible for ZAAP processing. We don't do that. Does this ring a bell with anyone as being a true statement. thanks Jim -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Went off to one of my ISV vendors and asked if the JAVA coding in their product would be run on the zAAP processor I am implementing on my two z9BC machines. The response was In order for XXX to use the ZAAP engines, it would have to be started in a special enclave eligible for ZAAP processing. We don't do that. Does this ring a bell with anyone as being a true statement. No its completely bogus. That -would- be true for zIIP work, but not for zAAP. JAVA work runs on a zAAP if there's one present unless you tweak the JVM to say you don't want it to. CC -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Amen to what Chris said. Java is the first implementer of the zAAP engine, and its use is auto-magic. zAAP is not just for Java apps, it's just that Java was the first app to get their foot in the door, just as DB2 V8 was first for zIIP exploitation for certain joins, stored procedures, user defined functions, index related processing for DB2 utilities, and (phew...) DRDA processing. Todd -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Craddock, Chris Sent: Thursday, April 12, 2007 3:18 PM To: [EMAIL PROTECTED] Subject: Re: zAAP Eligible Work Went off to one of my ISV vendors and asked if the JAVA coding in their product would be run on the zAAP processor I am implementing on my two z9BC machines. The response was In order for XXX to use the ZAAP engines, it would have to be started in a special enclave eligible for ZAAP processing. We don't do that. Does this ring a bell with anyone as being a true statement. No its completely bogus. That -would- be true for zIIP work, but not for zAAP. JAVA work runs on a zAAP if there's one present unless you tweak the JVM to say you don't want it to. CC -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.3.0/758 - Release Date: 4/12/2007 11:52 AM -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.3.0/758 - Release Date: 4/12/2007 11:52 AM -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Todd Burch wrote: Java is the first implementer of the zAAP engine, and its use is auto-magic. zAAP is not just for Java apps, it's just that Java was the first app to get their foot in the door, just as DB2 V8 was first for zIIP exploitation for certain joins, stored procedures, user defined functions, index related processing for DB2 utilities, and (phew...) DRDA processing. zAAP runs Java only. And, the interface has not been disclosed. -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
-Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Todd Burch Sent: Thursday, April 12, 2007 4:39 PM To: [EMAIL PROTECTED] Subject: Re: zAAP Eligible Work Amen to what Chris said. Java is the first implementer of the zAAP engine, and its use is auto-magic. zAAP is not just for Java apps, it's just that Java was the first app to get their foot in the door, just as DB2 V8 was first for zIIP exploitation for certain joins, stored procedures, user defined functions, index related processing for DB2 utilities, and (phew...) DRDA processing. Todd Todd, Are you aware of what other work might be zAAP eligible? -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
I believe it is JAVA applications that are using the IBM JVM (Java Virtual Machine). If your ISV uses a different JVM then I believe it will not use the zAAP engine. To accumulate data at the address space and service class period level on how much zAAP and zIIP resources might be consumed if they were configured, you use a new control specifiable in the SYS1.PARMLIB IEAOPTxx: PROJECTCPU=YES. This will let you monitor if any applications will use the specialty engines. Al Sherkow, I/S Management Strategies, Ltd. Consulting Expertise on Capacity Planning, Performance Tuning, WLC, LPARs, IRD and LCS Software Seminars on IBM SW Pricing, LPARs, and IRD Voice: +1 414 332-3062 Web: www.sherkow.com -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
I have called the zAAP a JPM (JAVA Physical Machine). How accurate would that be? I say that because the processor is no longer a general purpose processor, so it can not run normal work. Tom Moulder -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Edward Jaffe Sent: Thursday, April 12, 2007 4:59 PM To: [EMAIL PROTECTED] Subject: Re: zAAP Eligible Work Todd Burch wrote: Java is the first implementer of the zAAP engine, and its use is auto-magic. zAAP is not just for Java apps, it's just that Java was the first app to get their foot in the door, just as DB2 V8 was first for zIIP exploitation for certain joins, stored procedures, user defined functions, index related processing for DB2 utilities, and (phew...) DRDA processing. zAAP runs Java only. And, the interface has not been disclosed. -- Edward E Jaffe Phoenix Software International, Inc 5200 W Century Blvd, Suite 800 Los Angeles, CA 90045 310-338-0400 x318 [EMAIL PROTECTED] http://www.phoenixsoftware.com/ -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.3.0/758 - Release Date: 4/12/2007 11:52 AM -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.3.0/758 - Release Date: 4/12/2007 11:52 AM -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.3.0/758 - Release Date: 4/12/2007 11:52 AM -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Al Sherkow wrote: I believe it is JAVA applications that are using the IBM JVM (Java Virtual Machine). If your ISV uses a different JVM then I believe it will not use the zAAP engine. To accumulate data at the address space and service class period level on how much zAAP and zIIP resources might be consumed if they were configured, you use a new control specifiable in the SYS1.PARMLIB IEAOPTxx: PROJECTCPU=YES. This will let you monitor if any applications will use the specialty engines. Al Sherkow, I/S Management Strategies, Ltd. Consulting Expertise on Capacity Planning, Performance Tuning, WLC, LPARs, IRD and LCS Software Seminars on IBM SW Pricing, LPARs, and IRD Voice: +1 414 332-3062 Web: www.sherkow.com I beleive that PROJECTCPU is only for z/OS 1.8 and up. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Nope. Works fine on prior releases with the zIIP web deliverable and some APARs for z/OS and DB2 V8. We have been using this on z/OS 1.7.1 without any zIIP or zAAP installed to monitor eligible time. Best Regards, Sam Knutson, GEICO Performance and Availability Management mailto:[EMAIL PROTECTED] (office) 301.986.3574 Think big, act bold, start simple, grow fast... -Original Message- From: IBM Mainframe Discussio I beleive that PROJECTCPU is only for z/OS 1.8 and up. This email/fax message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of this email/fax is prohibited. If you are not the intended recipient, please destroy all paper and electronic copies of the original message. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Sam, is this z9 only ??? What about projecting from z/990 ??? Shane ... Nope. Works fine on prior releases with the zIIP web deliverable and some APARs for z/OS and DB2 V8. We have been using this on z/OS 1.7.1 without any zIIP or zAAP installed to monitor eligible time. -Original Message- From: IBM Mainframe Discussio I beleive that PROJECTCPU is only for z/OS 1.8 and up. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
Something else to consider are two IEAOPTxx parameters for WLM control of zAAP eligible workloads. IFACROSSOVER controls whether standard CPs will be used for zAAP eligible work. If YES (the default), then standard CPs will be used along with zAAP CPs. zAAP CPs will be preferred, but standard CPs are not excluded from consideration based on workload. If NO, then standard CPs are not considered for zAAP eligible work unless there are no zAAP CPs present. IFAHONORPRIORITY controls the workload priority settings for zAAP eligible work that is executed on standard CPs. If YES (the default), then all work on a standard CP will execute based on WLM assigned priority. If NO, then all zAAP eligible work that is assigned for execution on a standard CP will be scheduled at a lower priority than non-zAAP eligible workloads. I believe these parameters were added with z/OS 1.7. Tom Moulder -Original Message- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Knutson, Sam Sent: Thursday, April 12, 2007 10:09 PM To: [EMAIL PROTECTED] Subject: Re: zAAP Eligible Work Nope. Works fine on prior releases with the zIIP web deliverable and some APARs for z/OS and DB2 V8. We have been using this on z/OS 1.7.1 without any zIIP or zAAP installed to monitor eligible time. Best Regards, Sam Knutson, GEICO Performance and Availability Management mailto:[EMAIL PROTECTED] (office) 301.986.3574 Think big, act bold, start simple, grow fast... -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: zAAP Eligible Work
John, publicly, no. The only workload that I know of today is Java. Yes, it's touted as a Java processor, 'cuz that's the only thing using it today. Read between the lines from this redbook: http://www.redbooks.ibm.com/redbooks/SG246386/wwhelp/wwhimpl/java/html/wwhel p.htm Quoting: When a z/OS logical partition is configured, both CPs and zAAPs are defined as necessary to support the planned Java and non-Java workloads. zAAPs may be configured as initially online or reserved for subsequent use by z/OS as necessary... If it were only destined to be a java processor, sans any copyright considerations or politically correct names, I would have expected a name like zJAP (LOL). Now, on the other hand, they hit the nail on the head when they named the IFL. It's an application assist processor, or formally, integrated facility for applications - read between the lines - reduce mainframe TCO - don't charge for software - more open source leverage... blah, blah, blah. Todd Todd, Are you aware of what other work might be zAAP eligible? -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.3.0/758 - Release Date: 4/12/2007 11:52 AM -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
