Re: IDCAMS REPRO very slow on z/OS 2.3

[Steve Smith]

Oh please... you have a Shopsmith , not a
hammer.  :-)

sas

On Tue, Jun 12, 2018 at 3:33 PM, Sri h Kolusu  wrote:

> >> It seems ironic that Sri didn't suggest using ICEGENER instead of
> IDCAMS. For 5M+ records, I sure think I'd give it a try.
>
> Steve,
>
> I could suggest using DFSORT/ICEGENER/ICETOOL to most of the data
> manipulating questions posted here but then it would be like having a
> hammer, that makes everything looks like a nail. : ) I believe in using the
> right tool for the right job.
>
> >>ICEGENER works for VSAM files?  Does IEBGENER?  I thought it did not.
>
> Frank,
>
> It can  with the exception of LDS
>
> >>>The fix for APAR OA54007 was just implemented on our system and has
> resolved the issue.  Great!!
>
> Good to hear
>
>
> Thanks,
> Kolusu
>

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Re: IDCAMS REPRO very slow on z/OS 2.3

[Sri h Kolusu]

>> It seems ironic that Sri didn't suggest using ICEGENER instead of
IDCAMS. For 5M+ records, I sure think I'd give it a try.

Steve,

I could suggest using DFSORT/ICEGENER/ICETOOL to most of the data
manipulating questions posted here but then it would be like having a
hammer, that makes everything looks like a nail. : ) I believe in using the
right tool for the right job.

>>ICEGENER works for VSAM files?  Does IEBGENER?  I thought it did not.

Frank,

It can  with the exception of LDS

>>>The fix for APAR OA54007 was just implemented on our system and has
resolved the issue.  Great!!

Good to hear


Thanks,
Kolusu


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Re: IDCAMS REPRO very slow on z/OS 2.3

[Frank Swarbrick]

The fix for APAR OA54007 was just implemented on our system and has resolved 
the issue.  Great!!

From: Frank Swarbrick 
Sent: Tuesday, June 12, 2018 9:51 AM
To: ibm-main@listserv.ua.edu
Subject: IDCAMS REPRO very slow on z/OS 2.3

We just upgraded from z/OS 2.2 to z/OS 2.3 on Sunday morning.  This appears to 
cause IDCAMS REPRO jobsteps to do a lot more I/O and take a lot longer:


PROCSTEP RC  EXCP   CONN   TCB   SRB  CLOCK  SERV RECORDS 
PROCESSED

CPCOPY3  00  255K   929K  2.658683  0.159647   15.5310351552662441

CPCOPY3  00  256K   967K  2.679822  0.186634   16.9315619752760628

CPCOPY3  00  256K  1014K  2.693045  0.191031   17.6317550052812944

CPCOPY3  00  257K  1071K  2.698492  0.190811   18.7318125752834640

CPCOPY3  00  257K  1014K  2.706506  0.195671   18.0319535952842738

CPCOPY3  00  258K   909K  2.687564  0.163270   16.3313931852852559

After z/OS v2.3 implementation:

CPCOPY3  00   18M  2363K  6.493965  1.100855  101.3   1008129752859452

CPCOPY3  00   18M  2406K  6.123753  1.018400  100.5958844552888383

So from 15-20 minutes for 5.2 million records to 100 minutes.  Anyone know of a 
system level "tuning" parameter we might need to tweek?

Thanks,
Frank

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Re: IDCAMS REPRO very slow on z/OS 2.3

[Steve Smith]

ICEGENER (& DFSORT in general) yes; IEBGENER, haven't tried it, but I'd be
fairly gobsmacked if it did.

sas

On Tue, Jun 12, 2018 at 2:29 PM, Frank Swarbrick <
frank.swarbr...@outlook.com> wrote:

> ICEGENER works for VSAM files?  Does IEBGENER?  I thought it did not.

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Re: IDCAMS REPRO very slow on z/OS 2.3

[Frank Swarbrick]

ICEGENER works for VSAM files?  Does IEBGENER?  I thought it did not.

From: IBM Mainframe Discussion List  on behalf of 
Steve Smith 
Sent: Tuesday, June 12, 2018 12:06 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: IDCAMS REPRO very slow on z/OS 2.3

It seems ironic that Sri didn't suggest using ICEGENER instead of IDCAMS.
For 5M+ records, I sure think I'd give it a try.

Not that pointing that APAR wasn't very helpful.

sas

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Re: IDCAMS REPRO very slow on z/OS 2.3

[Steve Smith]

It seems ironic that Sri didn't suggest using ICEGENER instead of IDCAMS.
For 5M+ records, I sure think I'd give it a try.

Not that pointing that APAR wasn't very helpful.

sas

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Re: IDCAMS REPRO very slow on z/OS 2.3

[Frank Swarbrick]

Systems confirmed that the z/OS 2.3 system installed this weekend was built in 
January, and thus did not include this fix which wasn't released until March.  
I don't know the effort to apply this fix, but hopefully we'll get it soon.  
JCL change(s) for now.

From: IBM Mainframe Discussion List  on behalf of 
Frank Swarbrick 
Sent: Tuesday, June 12, 2018 11:41 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: IDCAMS REPRO very slow on z/OS 2.3

Thanks again, Sri.

I just ran a test, specifying AMP=('BUFND=200,BUFNI=20') on the JCL for both 
the INFILE and the OUTFILE.  The job ran much faster, with results similar to 
what we had been getting on z/OS 2.2.  Systems hasn't given me the answer as to 
whether the fix is on, but my guess is no.  :-)

Frank

From: IBM Mainframe Discussion List  on behalf of Sri 
h Kolusu 
Sent: Tuesday, June 12, 2018 11:02 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: IDCAMS REPRO very slow on z/OS 2.3

>> Do you know why the APAR says it applies to "Software Version 210"
instead of 230?

Frank,

Even though the issue is introduced in z/OS 2.3 , We built PTFs for the
other releases(2.1 and 2.2)  to forestall future problems that might have
been exposed by later PTFs

Thanks,
Kolusu


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Re: IDCAMS REPRO very slow on z/OS 2.3

[Frank Swarbrick]

Thanks again, Sri.

I just ran a test, specifying AMP=('BUFND=200,BUFNI=20') on the JCL for both 
the INFILE and the OUTFILE.  The job ran much faster, with results similar to 
what we had been getting on z/OS 2.2.  Systems hasn't given me the answer as to 
whether the fix is on, but my guess is no.  :-)

Frank

From: IBM Mainframe Discussion List  on behalf of Sri 
h Kolusu 
Sent: Tuesday, June 12, 2018 11:02 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: IDCAMS REPRO very slow on z/OS 2.3

>> Do you know why the APAR says it applies to "Software Version 210"
instead of 230?

Frank,

Even though the issue is introduced in z/OS 2.3 , We built PTFs for the
other releases(2.1 and 2.2)  to forestall future problems that might have
been exposed by later PTFs

Thanks,
Kolusu


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Re: IDCAMS REPRO very slow on z/OS 2.3

[Sri h Kolusu]

>> Do you know why the APAR says it applies to "Software Version 210"
instead of 230?

Frank,

Even though the issue is introduced in z/OS 2.3 , We built PTFs for the
other releases(2.1 and 2.2)  to forestall future problems that might have
been exposed by later PTFs

Thanks,
Kolusu


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Re: IDCAMS REPRO very slow on z/OS 2.3

[Allan Staller]

thx

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Sri h Kolusu
Sent: Tuesday, June 12, 2018 11:34 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: IDCAMS REPRO very slow on z/OS 2.3

> Sri,
> Can you provide any information as to what introduced this error?  The
APAR description seems to indicate this was "always there".

Alan,

It is NOT always there, the issue was introduced only in z/OS 2.3.  The error 
description and problem determination explains the problem.

Thanks,
Kolusu


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Re: IDCAMS REPRO very slow on z/OS 2.3

[Frank Swarbrick]

Thanks Sri.  I'm having the systems group check on this.  I'll try the JCL AMP 
buffers override to see if I can get around it for now.

Do you know why the APAR says it applies to "Software Version 210" instead of 
230?

From: IBM Mainframe Discussion List  on behalf of Sri 
h Kolusu 
Sent: Tuesday, June 12, 2018 10:34 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: IDCAMS REPRO very slow on z/OS 2.3

> Sri,
> Can you provide any information as to what introduced this error?  The
APAR description seems to indicate this was "always there".

Alan,

It is NOT always there, the issue was introduced only in z/OS 2.3.  The
error description and problem determination explains the problem.

Thanks,
Kolusu


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Re: IDCAMS REPRO very slow on z/OS 2.3

[Sri h Kolusu]

> Sri,
> Can you provide any information as to what introduced this error?  The
APAR description seems to indicate this was "always there".

Alan,

It is NOT always there, the issue was introduced only in z/OS 2.3.  The
error description and problem determination explains the problem.

Thanks,
Kolusu


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Re: IDCAMS REPRO very slow on z/OS 2.3

[Allan Staller]

Sri,

Can you provide any information as to what introduced this error?
The APAR description seems to indicate this was "always there".

Thanks in advance,

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Sri h Kolusu
Sent: Tuesday, June 12, 2018 11:10 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: IDCAMS REPRO very slow on z/OS 2.3

Frank,


Please make sure that you have  OA54007 installed.

https://apac01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww-01.ibm.com%2Fsupport%2Fdocview.wss%3Fuid%3Disg1OA54007&data=02%7C01%7Callan.staller%40HCL.COM%7C7ec74c2cb9d54fc6a0ff08d5d07f08eb%7C189de737c93a4f5a8b686f4ca9941912%7C0%7C1%7C636644166406372192&sdata=adLD86XpOoLDdwNiMLkEe%2FMRPnyeY6GVGVLUVtQLVq4%3D&reserved=0

Thanks,
Kolusu

IBM Mainframe Discussion List  wrote on
06/12/2018 08:51:03 AM:

> From: Frank Swarbrick 
> To: IBM-MAIN@LISTSERV.UA.EDU
> Date: 06/12/2018 08:51 AM
> Subject: IDCAMS REPRO very slow on z/OS 2.3 Sent by: IBM Mainframe
> Discussion List 
>
> We just upgraded from z/OS 2.2 to z/OS 2.3 on Sunday morning.  This
> appears to cause IDCAMS REPRO jobsteps to do a lot more I/O and take a
> lot longer:
>
>
> PROCSTEP RC  EXCP   CONN   TCB   SRB  CLOCK  SERV
> RECORDS PROCESSED
>
> CPCOPY3  00  255K   929K  2.658683  0.159647   15.53103515
52662441
>
> CPCOPY3  00  256K   967K  2.679822  0.186634   16.93156197
52760628
>
> CPCOPY3  00  256K  1014K  2.693045  0.191031   17.63175500
52812944
>
> CPCOPY3  00  257K  1071K  2.698492  0.190811   18.73181257
52834640
>
> CPCOPY3  00  257K  1014K  2.706506  0.195671   18.03195359
52842738
>
> CPCOPY3  00  258K   909K  2.687564  0.163270   16.33139318
52852559
>
> After z/OS v2.3 implementation:
>
> CPCOPY3  00   18M  2363K  6.493965  1.100855  101.3   10081297
52859452
>
> CPCOPY3  00   18M  2406K  6.123753  1.018400  100.59588445
52888383
>
> So from 15-20 minutes for 5.2 million records to 100 minutes.
> Anyone know of a system level "tuning" parameter we might need to tweek?
>
> Thanks,
> Frank
>
> --
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Re: IDCAMS REPRO very slow on z/OS 2.3

[Allan Staller]

Sri has a winner. 
When you read the apar description, it is a failed getmain (region) that causes 
the problem.


-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Allan Staller
Sent: Tuesday, June 12, 2018 11:11 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: IDCAMS REPRO very slow on z/OS 2.3

I would verify the CISIZE on the old/new files.
Buffering techniques?
Contention?
Region?


-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Frank Swarbrick
Sent: Tuesday, June 12, 2018 10:51 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: IDCAMS REPRO very slow on z/OS 2.3

We just upgraded from z/OS 2.2 to z/OS 2.3 on Sunday morning.  This appears to 
cause IDCAMS REPRO jobsteps to do a lot more I/O and take a lot longer:


PROCSTEP RC  EXCP   CONN   TCB   SRB  CLOCK  SERV RECORDS 
PROCESSED

CPCOPY3  00  255K   929K  2.658683  0.159647   15.5310351552662441

CPCOPY3  00  256K   967K  2.679822  0.186634   16.9315619752760628

CPCOPY3  00  256K  1014K  2.693045  0.191031   17.6317550052812944

CPCOPY3  00  257K  1071K  2.698492  0.190811   18.7318125752834640

CPCOPY3  00  257K  1014K  2.706506  0.195671   18.0319535952842738

CPCOPY3  00  258K   909K  2.687564  0.163270   16.3313931852852559

After z/OS v2.3 implementation:

CPCOPY3  00   18M  2363K  6.493965  1.100855  101.3   1008129752859452

CPCOPY3  00   18M  2406K  6.123753  1.018400  100.5958844552888383

So from 15-20 minutes for 5.2 million records to 100 minutes.  Anyone know of a 
system level "tuning" parameter we might need to tweek?

Thanks,
Frank

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Re: IDCAMS REPRO very slow on z/OS 2.3

[Allan Staller]

I would verify the CISIZE on the old/new files.
Buffering techniques?
Contention?
Region?


-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Frank Swarbrick
Sent: Tuesday, June 12, 2018 10:51 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: IDCAMS REPRO very slow on z/OS 2.3

We just upgraded from z/OS 2.2 to z/OS 2.3 on Sunday morning.  This appears to 
cause IDCAMS REPRO jobsteps to do a lot more I/O and take a lot longer:


PROCSTEP RC  EXCP   CONN   TCB   SRB  CLOCK  SERV RECORDS 
PROCESSED

CPCOPY3  00  255K   929K  2.658683  0.159647   15.5310351552662441

CPCOPY3  00  256K   967K  2.679822  0.186634   16.9315619752760628

CPCOPY3  00  256K  1014K  2.693045  0.191031   17.6317550052812944

CPCOPY3  00  257K  1071K  2.698492  0.190811   18.7318125752834640

CPCOPY3  00  257K  1014K  2.706506  0.195671   18.0319535952842738

CPCOPY3  00  258K   909K  2.687564  0.163270   16.3313931852852559

After z/OS v2.3 implementation:

CPCOPY3  00   18M  2363K  6.493965  1.100855  101.3   1008129752859452

CPCOPY3  00   18M  2406K  6.123753  1.018400  100.5958844552888383

So from 15-20 minutes for 5.2 million records to 100 minutes.  Anyone know of a 
system level "tuning" parameter we might need to tweek?

Thanks,
Frank

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Re: IDCAMS REPRO very slow on z/OS 2.3

[Sri h Kolusu]

Frank,


Please make sure that you have  OA54007 installed.

http://www-01.ibm.com/support/docview.wss?uid=isg1OA54007

Thanks,
Kolusu

IBM Mainframe Discussion List  wrote on
06/12/2018 08:51:03 AM:

> From: Frank Swarbrick 
> To: IBM-MAIN@LISTSERV.UA.EDU
> Date: 06/12/2018 08:51 AM
> Subject: IDCAMS REPRO very slow on z/OS 2.3
> Sent by: IBM Mainframe Discussion List 
>
> We just upgraded from z/OS 2.2 to z/OS 2.3 on Sunday morning.  This
> appears to cause IDCAMS REPRO jobsteps to do a lot more I/O and take
> a lot longer:
>
>
> PROCSTEP RC  EXCP   CONN   TCB   SRB  CLOCK  SERV
> RECORDS PROCESSED
>
> CPCOPY3  00  255K   929K  2.658683  0.159647   15.53103515
52662441
>
> CPCOPY3  00  256K   967K  2.679822  0.186634   16.93156197
52760628
>
> CPCOPY3  00  256K  1014K  2.693045  0.191031   17.63175500
52812944
>
> CPCOPY3  00  257K  1071K  2.698492  0.190811   18.73181257
52834640
>
> CPCOPY3  00  257K  1014K  2.706506  0.195671   18.03195359
52842738
>
> CPCOPY3  00  258K   909K  2.687564  0.163270   16.33139318
52852559
>
> After z/OS v2.3 implementation:
>
> CPCOPY3  00   18M  2363K  6.493965  1.100855  101.3   10081297
52859452
>
> CPCOPY3  00   18M  2406K  6.123753  1.018400  100.59588445
52888383
>
> So from 15-20 minutes for 5.2 million records to 100 minutes.
> Anyone know of a system level "tuning" parameter we might need to tweek?
>
> Thanks,
> Frank
>
> --
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
>

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Re: IDCAMS REPRO very slow on z/OS 2.3

[Lizette Koehler]

I would open an SR - you may have found a "new" behavior

Lizette


> -Original Message-
> From: IBM Mainframe Discussion List  On Behalf Of
> Frank Swarbrick
> Sent: Tuesday, June 12, 2018 8:51 AM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: IDCAMS REPRO very slow on z/OS 2.3
> 
> We just upgraded from z/OS 2.2 to z/OS 2.3 on Sunday morning.  This appears
> to cause IDCAMS REPRO jobsteps to do a lot more I/O and take a lot longer:
> 
> 
> PROCSTEP RC  EXCP   CONN   TCB   SRB  CLOCK  SERV RECORDS
> PROCESSED
> 
> CPCOPY3  00  255K   929K  2.658683  0.159647   15.5310351552662441
> 
> CPCOPY3  00  256K   967K  2.679822  0.186634   16.9315619752760628
> 
> CPCOPY3  00  256K  1014K  2.693045  0.191031   17.6317550052812944
> 
> CPCOPY3  00  257K  1071K  2.698492  0.190811   18.7318125752834640
> 
> CPCOPY3  00  257K  1014K  2.706506  0.195671   18.0319535952842738
> 
> CPCOPY3  00  258K   909K  2.687564  0.163270   16.3313931852852559
> 
> After z/OS v2.3 implementation:
> 
> CPCOPY3  00   18M  2363K  6.493965  1.100855  101.3   1008129752859452
> 
> CPCOPY3  00   18M  2406K  6.123753  1.018400  100.5958844552888383
> 
> So from 15-20 minutes for 5.2 million records to 100 minutes.  Anyone know of
> a system level "tuning" parameter we might need to tweek?
> 
> Thanks,
> Frank
> 
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