writing Java code to
read/write to it, so it wasn't a big deal. And it would be relatively trivial
to write a little Java batch program to accept an SQL and pass it off to Derby.
The benefit of it being all Java is that it's all
e's a number of tools to format the XML, including our
(Enterprise Performance Strategies') online tool:
https://www.epstrategies.com/wlm2html.html
Scott Chapman
On Wed, 23 Apr 2025 11:35:16 -0500, Steve Beaver wrote:
>XML is not an option
>
>
>
>
>-Original M
o 14:15, Scott Chapman pisze:
>[...]
>> I do agree in principle that most configurations should have at least 3 CPs.
>> Enforcing that would be good, but that's a more difficult lift in terms of
>> the software costs. Especially when it comes to old ISV contracts.
&g
I presume that's half as many FICON cards with a move from 2 port to 4 port
cards and those cards should be more power efficient as the DPU takes over some
processing that was previously in ASICs on the cards.
Scott Chapman
On Thu, 17 Apr 2025 14:48:16 -0700, Tom Brennan
wrote:
&g
rms of the
software costs. Especially when it comes to old ISV contracts.
Scott Chapman
On Thu, 17 Apr 2025 10:57:42 +1000, Andrew Rowley
wrote:
>On 16/04/2025 11:29 pm, Steve Beaver wrote:
>> I know the z17 is an evolution, but why have they not gotten faster?
>
>There's pra
ower
adjustments for the AMD processor. Making a slight increase in the power (PBO)
"curve" seems to help it avoid sudden unexpected shutdown, especially at low
utilization times. (My theory is that it's letting the power drift too low.) Of
course I expect IBM to have done a lot
Early in my sysprog career I decided to quiesce a job. And I wondered why
"QUIESCE myjob" was taking so long to complete. Eventually (as we were looking
up the system wait state I think) I realized that the correct command was
"RESET myjob,QUIESCE". Oops.
IIRC, the QUIESCE command was then add
f how to use zPCR to evaluate different upgrade
options.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
processing speed instead of
taking the card out entirely? IDK, but I suppose that might be possible. If so,
where you see that I have no idea.
Scott Chapman
On Sun, 20 Oct 2024 23:02:29 -0500, Paul Feller wrote:
>Yes, there is a PCHPID assigned to the crypto features. I've never
Further clarification from my memory banks:
That priced feature is required for the common use cases by the operating
system, such as HSM. Those use cases use a method of calling the compression
that works via the SAPs to manage calling the hardware instructions.
But the underlying hardware in
found the below bit. It
seems you might want to try running under BPXBATSL to see if that impacts
what's reported. If you have shell scripts calling other "unix" commands that
the combination of BPXBATSL and the _BPX* settings here might (possibly) get
you to the all in one a
n that might be counter-productive
because some customers change the LPAR name when they move between CECs either
for DR or site swap or even just because they upgraded to a new machine.
If it's possible to do something, somebody probably will.
Scott Chapman
On Wed, 5 Jun 2024 07:25:29 -0400,
In short, giant LPARs can definitely be problematic. Similarly, too small LPARs
can be problematic. Somewhere in the middle is ideal, but where that is will
depend.
First off, the most significant impact is you don't want LPARs whose processor
count is so high that it crosses drawers. (In most
compressed data.
IIRC, I was only looking at at CPU because I/O time can be significantly
variable depending on where we reading the data from. And doing less I/O is
obviously always better, and can significantly impact runtime in some cases. So
I/O time wasn't really a question in my mind.
ve a measurable increase in CPU would be
those that are completely idle and doing nothing but writing interval SMF
records to say they haven't processed any data.
Scott Chapman
On Wed, 17 Apr 2024 16:36:34 +1000, Andrew Rowley
wrote:
>On 17/04/2024 12:09 pm, Michael Oujesky wrote:
>> Y
LM section. The "Introdution to the WLM" presentation might be a good place to
start. "WLM’s Algorithms – How WLM Works" might be another good early one to
look at. It sounds like "Revisiting Goals over Time" might also be of interest.
:)
Scott Chapman
On Wed,
ta
>that might be in the SMF type 7x records.
While I agree that the 7x records generally have nothing that should be
considered "sensitive", some organizations consider system names sensitive.
Seems overkill to
years ago and just
left it set to that" makes much less sense to me.
Scott Chapman
On Fri, 29 Dec 2023 17:35:56 -0800, Ed Jaffe
wrote:
>On 12/29/2023 3:20 PM, Mark Zelden wrote:
>> This paper from Scott Chapman of EPS talks about the subject and he agrees
>> with
>>
x27;t know how interested people
are in general in EzNoSQL.
Scott Chapman
On Mon, 20 Nov 2023 17:28:17 -0600, Peter Bishop wrote:
>Also, given it's just SMF data being used here, surely there's a way for z/OS
>to process that without VSAM RLS and EzNoSQL (?). Perhaps they
all CF LPAR running on a GP. But it requires some effort to configure and
manage.
Scott Chapman
On Mon, 20 Nov 2023 06:32:08 +, Timothy Sipples wrote:
>The z/OS AI Framework requires EzNoSQL, EzNoSQL requires VSAM Record-Level
>Sharing (RLS), and VSAM RLS requires a Coupling Facility (
and 6xx. Their situation
was particularly problematic, but they're not the only ones that could benefit
from more than 6 CPs that could be finely adjusted in terms of capacity.
Scott Chapman
On Wed, 6 Sep 2023 09:52:47 +, Martin Packer
wrote:
>I really hope you�re not advising custo
It's more complicated than that. Although I would agree that if an LPAR has
only a single zIIP, likely SMT would be a good idea. But B is not true for
intervals that people usually consider when looking at utilization levels
because at the level of dispatch intervals, it's much more likely there
disable it. So it may be that the other platforms also
sometimes have valid reasons to disable it.
Scott Chapman
On Thu, 31 Aug 2023 13:35:11 +, kekronbekron
wrote:
>Hi Scott,
>
>Could you expand on this please.
>
>> But z/OS "densely packs" the cores, mean
is "we'll buy more when we start to see problems...
or when we do the next upgrade". Which, to be fair, most customers are in that
situation: they don't do any real detailed planning for zIIP capacity.
Scott Chapman
-
Note you also must IPL PROCVIEW CORE (optionally append ,CPU_OK) in LOADxx
before you can switch back and forth by the setting in IEAOPTxx.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send
vely idle production LPAR) meaning that the net savings will be
also relatively minor in the overall scheme of things.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.e
Having looked at data from a whole lot of customer systems, I can say that
SMFID and SYSNAME are often (but not always) the same. LPARNAME is very often
different, although I appreciate it when there's at least some sort of visual
link between it and SMFID/SYSNAME. E.G. SYSA and C1SYSA vs SYSA a
Ah, I missed that or forgot by the time I got to posting. I haven't tried it
myself, but have heard it is problematic to get the data back into a z/OS
dataset in a usable fashion.
On Sat, 17 Dec 2022 09:47:39 +1100, Andrew Rowley
wrote:
>The OP specified being able to reverse the process, so
ns forever. LOCSITE EPSV4 can be important for getting
through some firewalls properly.)
Scott Chapman
On Thu, 15 Dec 2022 12:27:56 -0600, Paul Gilmartin wrote:
>>From Barry Merrill :
>>...
>>But if the destination is for ASCII and SAS, you can use IEBGENER to create a
>
Which may be part of the reason for releasing the smaller version* of a
particular generation some months after the larger version.
* - The models formerly known as "Business Class" that are now seeking a handy
name.
On Thu, 20 Oct 2022 17:07:14 -0500, Mike Schwab wrote:
>The big problem w
fecting things that were off-peak. For customers trying to
move workload off from the mainframe, it can sometimes be hard to reduce
mainframe costs until they've moved off really significant amounts of workload.
(Notice I didn't use the word "s
d as it is on other
platforms, it might underperform.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
va 8 being supported until "at least May 2026" and Java 11 until "at least
October 2024". So given that 17 is potentially coming available in September,
and given that I think the migration from 11 to 17 will likely be easier than 8
"I want to play with z/OS for a few hours, stand up a z/OS image with x CPU
and y GB of disk and put it on my credit card".
*-Remember: in the cloud, you pay for what you forgot to turn off. And those
pennies can add up shockingly fast in some ca
Absolute CP capping caps the LPAR at the specified number of CP's worth of
capacity. It avoids the issues with initial capping (by weight) in which LPAR
A's available capacity can change when LPAR B or C is activated or deactivated
if LPAR A's weight isn't readjusted too.
-
make sure that SC has a resource group
that limits how much CPU the work can consume.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Alas no, but there's a number of products out there that will read said
records, including our own. ;) Pivotor does have a free tier, but it's not open
source.
Scott Chapman
--
For IBM-MAIN subscribe / signoff
how the work
overall is performing and monitor for the work degrading over time.
Monitoring the delay samples over time is one of the things I highly recommend,
especially in the situations where you're always running at 100% busy or always
running at cap or something like that.
Scott Ch
real zIIP capacity is the best answer. In cases
where that's impractical, MT=2 might be useful.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
free
webinars as well.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
version of
Edge is based on the open source version of Chrome under the covers. Some have
suggested it would be better to have more diversity in the underlying browser
technology, but Chromium generally is pretty good.
Scott Chapman
On Mon, 15 Jun 2020 10:46:13 -0400, Gord Tomlin
wrote:
>
ay's world. Especially if they're
performance advice.
Scott Chapman
On Wed, 3 Jun 2020 07:00:19 -0700, Charles Mills wrote:
>I must have time on my hands. I just dragged out the OS/390 V2R8 CDs from
>1999, and the sentence is there verbatim.
>
>It's the onl
e environments.
But I would be surprised to find a case where COBOL isn't the most memory
efficient.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
to the processor core. That's also why you'll see potentially significant
variations between runs of the same exact job. That's why I always want to see
multiple re-runs so I can understand the "normal" variation. (But one still
needs to take into account the curr
Reality may differ more
significantly from expectation if you're just using one of the single-number
metrics without regard to the RNI of the work and the LPAR configuration
(factors that zPCR takes into account).
Scott Chapman
On Fri, 13 Dec 2019 20:55:54 -0500, Phil Smith III wr
ar
metric changed gets more interesting.
If your performance reporting tool makes that onerous, remember that we
(Enterprise Performance Strategies) do offer free cursory performance reviews
and our performance reporting service does have a free tier as well. Contact me
off-list if you'
Class Memory were more likely to have paging space >=
real storage. But even there, we've seen >1TB LPARs with with only a few
hundred GB of paging space, including SCM.
Of course it is also fairly common for those large memory systems to be running
with large amounts of that memory
that. Seems like it should be a
fine enough idea. But I'd check things closely the first few times at least.
And I'd trust it more if it seemed to be valid XML. But at least from what I've
seen by the time it gets downloaded, it's not quite so.
Scott Chapman
ttle utility that will read/write from
DDs instead of file system files. I did so at my past job, but alas the source
for that was left with the previous employer.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
On Wed, 19 Jun 2019 13:34:09 -0500, Horst Sinram wrote:
>The OP's question was about DB2 workloads. Resource group capping for DB2
>workloads would be pretty risky unless you could really guarantee that you do
>not share resources with your production work.
>
Although I haven't counted them a
>How about submitting a requirement to IBM that would add a control to WLM
>This control would re-classify a ZIIP eligible workload to a different
>service class if it spills over to a GCP because you are running your ZIIPS
>hot (or hit the "generosity factor" for DB2 work). This service class co
True, relative to the zIIP workload. But if that zIIP workload is relatively
low importance and crossing over to the GCPs and raising your R4HA, it may make
sense to restrict the low importance work instead of increasing the R4HA,
depending on what your business requirements are. And keeping the
10% busy in the
customers I sampled though, which matches my historical understanding that most
customers don't have an issue with SAP capacity.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
ts and
gives my recommendation for when you might want to try it. Go to
https://www.pivotor.com and click on the "Free!" button then find and click
through to our presentations. You probably can find it on a number of the
conference web sites as I've presented it at the major confe
CICS will be most performant.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
results if
you do try it.
Note that my reluctance applies specifically to single-CP machines. If I had
even two CPs, then I'd be much more willing to give it a shot, depending on
current utilization levels and so forth. With dyndisp=thin of course.
Scott Chapman
On Wed, 30 Jan 2019 0
Yup.. should be SMF30PF1 that "1" and "I" look pretty close at the font size I
had up.
Scott
On Fri, 9 Nov 2018 07:16:03 -0600, Elardus Engelbrecht
wrote:
>Sorry, but is it not SMF30PF1 (number one instead of letter i)?
--
SMF30PFI includes flags indicating that the service class was changed either
during or before execution.
Scott Chapman
Enterprise Performance Strategies
On Thu, 8 Nov 2018 17:59:19 +, Sankaranarayanan, Vignesh
wrote:
>Hello list,
>
>Apart from 99.2, can I find info on serv
I/O priority management enabled
may be leading to WLM not being able to effectively manage certain service
classes.
Note again: this is something I'm still researching and I hope/expect to
present on the topic at the next SHARE.
Scott Chapman
Enterprise Performance Strategies
On Fri
l for reporting on those.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
cost to that, but in the grand scheme of things, the costs are not nearly as
significant as GCP capacity, so err on the side of having too much zIIP
capacity. That would be an interesting study: what's common ratio of zIIP
capacity to GCP capacity? I suspect that that ratio has been creeping
ss, we're always happy to do a free cursory performance review. We
often find "interesting" things during those reviews. See:
https://www.pivotor.com/cursoryReview.html
Scott Chapman
--
For IBM-MAIN subscribe / sig
Windows machine, primarily (I believe) due to I/O being slower.
Scott Chapman
On Thu, 19 Apr 2018 12:13:38 +0800, David Crayford wrote:
>
>I've yet to see a Java workload run faster on z/OS then on x86. And our
>x86 servers are heavily virtualized using Hyper-V. Our zIIP runs at
>
The default encoding on z/OS occasionally causes problems. Particularly when
doing network I/O. Adding option "-Dfile.encoding=ISO8859-1" in my experience
takes care of those issues. Of course you have to deal with ASCII files then,
but that's a minor issue.
Scott Chapman
On T
You could also use the external Rhino Jars
if you needed a version later than the embedded Rhino version.
I remember being surprised several years ago at how well JavaScript (using
Rhino) ran on z/OS.
Scott Chapman
On Fri, 23 Feb 2018 14:16:18 +0800, David Crayford wrote:
>Java 9 comes
2s. It looks like possibly useful information if you're
tuning zFS performance, but I personally haven't spent any time yet
investigating them.
Scott Chapman
On Thu, 8 Feb 2018 16:17:47 +, Allan Staller wrote:
>Not sure about SMF92, but SMF99 are "WLM decision records"
and start back up and ran into more "interesting" AWS issues/limitations. It's
been an "interesting" week.
Hopefully this all will be less painful on z/OS.
Scott Chapman
On Wed, 10 Jan 2018 15:26:04 -0600, Tom Marchant
wrote:
>On Wed, 10 Jan 2018 21:44:29 +0100,
basis and I'm not
sure what that implications of that might be.
Obviously I might be slightly (although I hope not much) biased at this point,
but I think the points are worth consideration.
Scott Chapman
www.pivotor.com
On Wed, 29 Nov 2017 21:16:00 +1100, Andrew Rowley
wrote:
>
eplacement option.
Scott Chapman
https://www.pivotor.com
On Thu, 23 Nov 2017 09:04:40 +, Martin Packer
wrote:
>When you say "planning to" I hope you really mean "beginning to consider".
>There are just so many ways this could turn out to be a bad idea.
>
>But th
1 garbage collector (which I believe will be the new default) will also
get string deduplication:
http://openjdk.java.net/jeps/192
Since those are internal JVM things, if those make will it into the IBM JVM I
of course don't know.
On Wed, 30 Aug 2017 22:27:52 +0100, David W Noon
wrote:
>> the keys. Yes, I know, if this sort of thing is a requirement, we need Db2
>> (or is it DB2), but that is _never_ going to happen around here.
>
>It is DB2. But that isn't really necessary.
Except they really did change the branding to
Which also have way more mind share among the smaller/startup
organizations.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
location method 20+ years ago I probably
knew the answer to your questions at one time, but the only one I remember for
sure is that it works fine with SMS.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
storage groups are added to the eligible list and evaluated the same
regardless of which SG they're in. But I could be wrong about that.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
t as cheap
as DASD, but in the grand scheme of things it's not *that* expensive. And it
also can make dumps much more tolerable. I might go so far as to say that any
machine over some threshold of real should really (!) have SCM.
Scott Chapman
--
he change is made. "
See PDF page 93, indicated page 75 in:
http://www.redbooks.ibm.com/redbooks/pdfs/sg247281.pdf
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@li
> I would point out that the cost to provide z/OS services, or any computing
> services for that matter, is greater than zero, especially but not only for
> "real production business work." If you'd like to suggest that any company
> price its set of products and associated services below cost,
I don't see anything there that says one can do real production business work
using z/OS, starting at $0. Or $500. Or really any amount.
Would be happy to be shown otherwise.
On Thu, 8 Dec 2016 13:37:37 +0800, Timothy Sipples wrote:
>Charles Mills asks:
>>Is there any good reason IBM could no
On Tue, 6 Dec 2016 13:54:27 -0500, Steve wrote:
>If you look at the sheer cost if setting up a zOS ecosystem, its not cheap.
Yeah, that's the key point not mentioned in the article: building your system
on AWS starts at $0. However... AWS costs can add up too. Most of their rates
are in penn
Since Alexa is mentioned...
http://www.theverge.com/2016/11/4/13525172/amazon-alexa-big-mouth-billy-bass-hack-api
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu with the
These sound promising...
SMF71C1A "Average total number of high virtual common memory pages (in units of
4 KB)."
SMF71CPA "Average number of high virtual common pages in-use"
The latter is apparently new in z/OS 2.2.
Min and max fields available too.
Scott
On Wed, 28 Sep 2016 11:31:03 +00
Their purchase of EMC just closed, so I guess Dell now also makes mainframe
disk subsystems. Will be interesting to see what they do with that.
Scott
On Tue, 13 Sep 2016 21:57:22 +0100, Vince Coen wrote:
>Quest.
>
>Seem to recall some other m/f products as well. Toad ?
>
>Vince
>
>
>On 13/09
You can't really bypass the system exits, but that doesn't mean that the exits
might not include certain "secret" triggers that might allow you to specify a
higher time value on the job card. E.G. if the job is in this class and it's
this time of day and this job name, then allow/set something
Nice. I had thought there was a physical dongle involved. The lack of such
certainly makes things much easier.
On Sun, 11 Sep 2016 10:55:28 -0400, Scott Ford wrote:
>zPDT versions
>
>On Sunday, September 11, 2016, Scott Chapman
>wrote:
>
>> On Sat, 10 Sep 2016 13:12
On Sat, 10 Sep 2016 13:12:37 -0400, Scott Ford wrote:
>We have multiple z/OS images running in AWS ( Amazon ) and I have a
Sorrry, I just have to ask: how do you have z/OS running in AWS??
--
For IBM-MAIN subscribe / signoff /
On Wed, 31 Aug 2016 15:51:07 +0800, David Crayford wrote:
>Is anybody outside of IBMs customers still using Eclipse? I was under
>the impression that IntelliJ was the dominant force
>in the fat IDE space now. And you get the same editor and user
>experience no matter what language you're editing
I can't find it documented.
It may be also possible to automate driving the ISPF application.
Note that I haven't personally tried any of these.
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access in
Yes, resource groups might be able to help if you don't want to lower the DC
itself. But it's very dependent on the situation. My impression from your
discussion is that addressing the scheduling issues may be the best first step
though.
Remember that it's an average over 4 hours. So if you're
In addition to the other reasons cited, one of my arguments was that I wasn't
100.00% sure that the app team hasn't squirreled something away in a
non-production storage group that really was needed for either running or
fixing or recovering production. And the chance for human error sneaking in
On Sat, 7 May 2016 11:25:40 -0400, Phil Smith III wrote:
>P.S. Scott, the same command still failed after -help was working. Do you
>know what's wrong with it? Would love to grok this in fullness (well, "more
>completely" -- I know I'll never grok in fullness!)
>>/u/Java6_64/J6.0_64/bin/javac -J
If my google-fu is good, max heap size default on z/OS for IBM Java 5 was 64M
and on Java 6 it was increased to "half of real storage with a maximum of
512M". Min size also increased from 1M to 4M.
Just to make sure that it's the heap size change between 5 and 6, did you try
"javac -J-Xmx64M he
The Technical Guide Redbooks for the relevant processor typically has this.
Might be in the planning guide too. Looks like minimum granularity for the z13
is 512MB.
Scott
On Thu, 5 May 2016 22:52:19 -0400, phil yogendran wrote:
>Thanks but where is that documented? How can I tell beforehand t
>If your batch jobs are running Dicretionary at a DP lower than CICS, it is
>very
>unlikely that they are causing significant CICS delays.
True from a CPU perspective. But the batch jobs could be locking resources in
DB2 that are delaying the CICS transactions. And if the batch jobs holding
th
current slice is a
cap slice, the work unit is moved to the back of the queue (subject to priority
order).
Scott Chapman
--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to lists...@listserv.ua.edu
>Scott Chapman wrote:
>>Software billing is based on available/consumed capacity.
>
>IBM's is/are not. It's based on *peak* four hour rolling average
>utilization per month -- or, effectively, per subscription year for
>products that are not Monthly License Charge pr
I believe that while chargeback is an important issue that SMT messes up,
that's already somewhat messed up today because there's more variance from
execution to execution. I.E. run the same exact job twice and even absent SMT
you'll get different CPU measurements. That's always been the case, b
On Fri, 19 Feb 2016 18:16:53 +1100, Andrew Rowley
wrote:
>Memory leaks are not a usual case, but I would suggest you will still
>want to garbage collect.
>
>I'm not arguing against large memory - I am all in favour of as much as
>you can afford. It's just the suggestion that avoiding Java GC is
On Fri, 19 Feb 2016 08:56:17 +, Martin Packer
wrote:
>And if you think that's bad try making your favourite slide or email
>editor keep the "z" lower case. Permanent nightmare. :-)
Amen. But the Ctrl-z every time after you type it reinforces what platform
you're writing about. :)
Scott
-
On Sat, 6 Feb 2016 16:02:52 -0600, Kirk Wolf wrote:
>I doubt that there is a significant difference in CPU resources between
>running the JVM in JZOS vs BPXBATC**.
I was surprised too.
>Perhaps the differences that you are seeing have to do with not measuring
>all of the address spaces?
That's
ch was unexpected. It was in the single
digit percentage range, but it was consistent across multiple different
workloads. I never did get that difference understood to my satisfaction.
Scott Chapman
--
For IBM-MAIN subs
1 - 100 of 178 matches
Mail list logo
