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Similaire à Advanced DBA – Performance Tuning for MUF Part II (20)
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Advanced DBA – Performance Tuning for MUF Part II
- 11. 11 © 2016 CA. ALL RIGHTS RESERVED.@CAWORLD #CAWORLD
CA Datacom utilizing the IBM zIIP
§ Customer on V15.0
– Our license is based on a 55 MSU highest rolling average
– Before r14, we exceeded the 55 MSU 6 out of 12 months incurring
significant upcharges on software
– Most recent contract 55 MSUs per month
§ With a special rate to buy “extra 55 MSUs” for the year
– After r14.01 and now 15.0,
§ We have only exceeded 50 MSUs once during a very heavy startup month
– We will not use many of the “extra MSUs” this year
– Reduces our costs on the mainframe
Available specialty processer on most z boxes
- 33. 33 © 2016 CA. ALL RIGHTS RESERVED.@CAWORLD #CAWORLD
New functionality available in V15 (cont’d)
§ Are you seeing lots of “other SRB” with zIIP
– Example MUF with medium buffers and lots of IO activity (V14)
Improved zIIP utilization with reduced GP CPU
Cmd Jobname Jobnr Clocktime CPU-Time SRB-Time IOCount CPTime IIPtime IIPonCP IIPencl
___ SHUKE01 59656 00:10:33 2.473518 0.020703 1062 2.432321 0.041197 0.000037 0.041197
___ @2DBRUP2 59696 00:00:53 0.134624 0.023081 109 0.134624
___ QA14MUF4 59663 00:08:14 5.667642 1.258595 70677 3.145144 2.522497 0.000524 2.522497
___ @3PWRUP2 59700 00:00:46 0.099999 0.017140 109 0.099999
___ @1UNRED1 59686 00:01:06 0.387458 0.079477 109 0.387458
___ @3PWRUP3 59701 00:00:51 0.130862 0.023287 109 0.130862
___ @2DBRUP1 59695 00:00:53 0.372552 0.063932 109 0.372552
___ @2DBRUP3 59697 00:00:53 0.138674 0.024207 109 0.138674
___ @1UNRED2 59687 00:00:56 0.103296 0.019699 109 0.103296
Total CPU 5.667642
zIIP CPU 2.522497 45%
Billable CPU 3.145145 55% GP CPU 1.886550 33%
Other SRB 1.258595 22%
- 35. 35 © 2016 CA. ALL RIGHTS RESERVED.@CAWORLD #CAWORLD
New functionality available in V15 (cont’d)
§ V15 reduces “other SRB” with zIIP
– Example MUF with medium buffers and lots of IO activity (V15)
Improved zIIP utilization with reduced GP CPU
Total CPU 5.581476
zIIP CPU 4.248196 76%
Billable CPU 1.333280 24% GP CPU 0.967602 17%
Other SRB 0.365678 07%
Cmd Jobname Jobnr Clocktime CPU-Time SRB-Time IOCount CPTime IIPtime IIPonCP IIPencl
___ SHUKE01 59656 00:54:02 5.729934 0.053566 2102 5.240694 0.489240 0.000089 0.489240
___ @2DBRUP2 60326 00:00:52 0.307367 0.051069 109 0.307367
___ QA14MUF4 60316 00:01:10 5.581476 0.365678 152683 1.333339 4.248196 0.000026 4.248196
___ @3PWRUP2 60323 00:01:05 0.264024 0.044803 109 0.264024
___ @1UNRED1 60325 00:00:52 0.432173 0.066993 109 0.432173
___ @3PWRUP3 60331 00:00:45 0.181963 0.028822 109 0.181963
___ @2DBRUP1 60318 00:01:05 0.426242 0.072268 110 0.426242
___ @2DBRUP3 60330 00:00:51 0.300624 0.045925 109 0.300624
___ @1UNRED2 60317 00:01:10 0.532060 0.088708 109 0.532060
- 43. 43 © 2016 CA. ALL RIGHTS RESERVED.@CAWORLD #CAWORLD
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