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2064 2-Way LPAR, 1G/2G

(Ref #1.)

Workload: CMS1 with External TPNS:  

Hardware Configuration:   

Processor model:   2064-109 LPAR
Processors used:   2 dedicated
Storage:
    Real:          1GB (default MDC)
    Expanded:      2GB (MDC BIAS 0.1)
DASD:


Type of
DASD


Control
Unit


Number
of Paths



PAGE



SPOOL


- Number of Volumes -
TDSK



User



Server



System

3390-3
RAMAC 1
4






16




3390-3
RAMAC 1
4






16




3390-3
RAMAC 2
4
18
6
2






3390-2
3990-3
4
4


2




2

Note: Each set of RAMAC 1 volumes is behind a 3990-6 control unit with 1024M cache. RAMAC 2 refers to the RAMAC 2 Array Subsystem with 256M cache and drawers in 3390-3 format.

Software Configuration:   

Driver:                   TPNS
Think time distribution:  Bactrian
CMS block size:           4KB
 
Virtual Machines:


Virtual
Machine



Number



Type


Machine
Size



SHARE



RESERVED



Other Options

SMART
1
RTM
32M
3%
400
QUICKDSP ON
TCPIP
1
TCPIP
256M
3000
14000
QUICKDSP ON
WRITER
1
CP monitor
2M
100


QUICKDSP ON
Unnnn
3420
Users
3M
100




Measurement Discussion:  

This environment is sufficiently storage constrained that there is heavy paging to expanded storage and moderate paging to DASD.

The measurement results are summarized in the following two tables. The first table contains the absolute results, while the second table show the results as ratios relative to the VM/ESA 2.4.0 base case. Performance terms in the tables are defined in the glossary.

The results show that the total processing requirements (PBT/CMD (H)) of z/VM 3.1.0 with 31-bit CP are equivalent to VM/ESA 2.4.0. The total processing requirements of z/VM 3.1.0 with 64-bit CP are about 0.8% higher as the result of a 5.2% increase in CP CPU time (CP/CMD (H)).

A number of CP control blocks had to be extended for the 64-bit support, resulting in an increase in CP free storage requirements (FREEPGS). Many of these control blocks are used in common by both the 31-bit and 64-bit versions. That is why CP free storage requirements also show increases for z/VM 3.1.0 31-bit CP case.

The z/VM 3.1.0 results reflect the presence of the Rexx runtime improvement (see Miscellaneous CMS Improvements), which reduces total CPU time per command by about 0.2% for this workload. Most of this reduction is in CP.


Table 1. CMS-Intensive Migration from VM/ESA 2.4.0: 2064 2-way LPAR, 1G/2G


Release
CP
Run ID


2.4.0
31 bit
72BC3422


3.1.0
31 bit
72CC3420


3.1.0
64 bit
72CC3421


Response Time
TRIV INT
NONTRIV INT
TOT INT
TOT INT ADJ
AVG FIRST (T)
AVG LAST (T)



0.06
0.64
0.17
0.13
0.10
0.17



0.06
0.64
0.16
0.13
0.09
0.16



0.06
0.64
0.17
0.13
0.10
0.17


Throughput
AVG THINK (T)
ETR
ETR (T)
ETR RATIO
ITR (H)
ITR
EMUL ITR
ITRR (H)
ITRR



9.12
266.29
341.54
0.78
386.67
150.95
186.52
1.000
1.000



9.15
265.21
341.91
0.78
387.43
150.49
186.25
1.002
0.997



9.11
268.30
341.55
0.79
383.73
150.87
188.31
0.992
0.999


Proc. Usage
PBT/CMD (H)
PBT/CMD
CP/CMD (H)
CP/CMD
EMUL/CMD (H)
EMUL/CMD



5.172
5.153
1.108
0.966
4.064
4.187



5.162
5.148
1.116
0.994
4.046
4.153



5.212
5.212
1.166
1.025
4.046
4.187


Processor Util.
TOTAL (H)
TOTAL
UTIL/PROC (H)
UTIL/PROC
TOTAL EMUL (H)
TOTAL EMUL
MASTER TOTAL
MASTER EMUL
TVR(H)
TVR



176.66
176.00
88.33
88.00
138.80
143.00
90.00
66.00
1.27
1.23



176.50
176.00
88.25
88.00
138.33
142.00
90.00
66.00
1.28
1.24



178.02
178.00
89.01
89.00
138.21
143.00
90.00
66.00
1.29
1.24


Storage
NUCLEUS SIZE (V)
TRACE TABLE (V)
WKSET (V)
PGBLPGS
PGBLPGS/USER
TOT PAGES/USER (V)
FREEPGS
FREE UTIL
SHRPGS



2472KB
350KB
67
244K
71.3
164
10319
0.97
1184



2576KB
350KB
67
243K
71.1
171
10808
0.97
1137



2644KB
350KB
67
236K
69.0
171
11156
0.96
1148


Paging
READS/SEC
WRITES/SEC
PAGE/CMD
PAGE IO RATE (V)
PAGE IO/CMD (V)
XSTOR IN/SEC
XSTOR OUT/SEC
XSTOR/CMD
FAST CLR/CMD



384
24
1.19
0.00
0.00
1871
1980
11.28
20.56



394
24
1.22
0.00
0.00
1907
2020
11.49
20.61



383
24
1.19
0.00
0.00
1902
2016
11.47
20.67


Queues
DISPATCH LIST
ELIGIBLE LIST



96.0
0.0



96.5
0.0



96.9
0.0


I/O
VIO RATE
VIO/CMD
RIO RATE (V)
RIO/CMD (V)
NONPAGE RIO/CMD (V)
DASD RESP TIME (V)
MDC REAL SIZE (MB)
MDC XSTOR SIZE (MB)
MDC READS (I/Os)
MDC WRITES (I/Os)
MDC AVOID
MDC HIT RATIO



6486
18.99
1935
5.67
5.67
9.8
266
204
2996
646
2875
0.95



6495
19.00
1935
5.66
5.66
9.8
269
204
2999
647
2880
0.96



6473
18.95
1913
5.60
5.60
9.8
263
203
2996
639
2881
0.96


PRIVOPs
PRIVOP/CMD
DIAG/CMD
DIAG 04/CMD
DIAG 08/CMD
DIAG 0C/CMD
DIAG 14/CMD
DIAG 58/CMD
DIAG 98/CMD
DIAG A4/CMD
DIAG A8/CMD
DIAG 214/CMD
DIAG 270/CMD
SIE/CMD
SIE INTCPT/CMD
FREE TOTL/CMD



1.67
79.41
0.79
1.30
0.13
0.07
0.98
1.35
11.25
3.85
41.06
1.29
81.98
50.83
52.70



1.67
79.18
0.78
1.30
0.13
0.07
0.98
1.36
11.24
3.84
41.04
1.29
81.89
50.77
52.65



1.67
79.12
0.78
1.30
0.13
0.07
0.98
1.32
11.25
3.85
41.06
1.29
81.98
50.83
58.56


TCPIP Machine
WKSET (V)
TOT CPU/CMD (V)
CP CPU/CMD (V)
VIRT CPU/CMD (V)
DIAG 98/CMD (V)



7700
0.301
0.129
0.172
1.350



7366
0.302
0.130
0.172
1.361



7050
0.306
0.132
0.174
1.323

Note: 2064-109; LPAR; 2 dedicated processors; LPAR Storage: 1G central, 2G expanded; real MDC: default; xstor MDC: bias 0.1; 3420 CMS1 users; External TPNS; T=TPNS, V=VMPRF, H=Hardware Monitor, Unmarked=RTM


Table 2. CMS-Intensive Migration from VM/ESA 2.4.0: 2064 2-way LPAR, 1G/2G - Ratios


Release
CP
Run ID


2.4.0
31 bit
72BC3422


3.1.0
31 bit
72CC3420


3.1.0
64 bit
72CC3421


Response Time
TRIV INT
NONTRIV INT
TOT INT
TOT INT ADJ
AVG FIRST (T)
AVG LAST (T)



1.000
1.000
1.000
1.000
1.000
1.000



0.984
0.995
0.988
0.983
0.932
0.952



1.016
0.991
1.000
1.008
1.068
1.026


Throughput
AVG THINK (T)
ETR
ETR (T)
ETR RATIO
ITR (H)
ITR
EMUL ITR



1.000
1.000
1.000
1.000
1.000
1.000
1.000



1.004
0.996
1.001
0.995
1.002
0.997
0.999



1.000
1.008
1.000
1.008
0.992
0.999
1.010


Proc. Usage
PBT/CMD (H)
PBT/CMD
CP/CMD (H)
CP/CMD
EMUL/CMD (H)
EMUL/CMD



1.000
1.000
1.000
1.000
1.000
1.000



0.998
0.999
1.007
1.029
0.995
0.992



1.008
1.011
1.052
1.061
0.996
1.000


Processor Util.
TOTAL (H)
TOTAL
UTIL/PROC (H)
UTIL/PROC
TOTAL EMUL (H)
TOTAL EMUL
MASTER TOTAL
MASTER EMUL
TVR(H)
TVR



1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000



0.999
1.000
0.999
1.000
0.997
0.993
1.000
1.000
1.003
1.007



1.008
1.011
1.008
1.011
0.996
1.000
1.000
1.000
1.012
1.011


Storage
WKSET (V)
PGBLPGS/USER
TOT PAGES/USER (V)
FREEPGS
FREE UTIL
SHRPGS



1.000
1.000
1.000
1.000
1.000
1.000



1.000
0.996
1.043
1.047
1.004
0.960



1.000
0.967
1.043
1.081
0.996
0.970


Paging
READS/SEC
WRITES/SEC
PAGE/CMD
XSTOR IN/SEC
XSTOR OUT/SEC
XSTOR/CMD
FAST CLR/CMD



1.000
1.000
1.000
1.000
1.000
1.000
1.000



1.026
1.000
1.023
1.019
1.020
1.019
1.002



0.997
1.000
0.998
1.017
1.018
1.017
1.006


Queues
DISPATCH LIST



1.000



1.005



1.009


I/O
VIO RATE
VIO/CMD
RIO RATE (V)
RIO/CMD (V)
NONPAGE RIO/CMD (V)
DASD RESP TIME (V)
MDC REAL SIZE (MB)
MDC XSTOR SIZE (MB)
MDC READS (I/Os)
MDC WRITES (I/Os)
MDC AVOID
MDC HIT RATIO



1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000



1.001
1.000
1.000
0.999
0.999
1.000
1.010
1.001
1.001
1.002
1.002
1.011



0.998
0.998
0.989
0.989
0.989
1.000
0.988
0.993
1.000
0.989
1.002
1.011


PRIVOPs
PRIVOP/CMD
DIAG/CMD
DIAG 04/CMD
DIAG 08/CMD
DIAG 0C/CMD
DIAG 14/CMD
DIAG 58/CMD
DIAG 98/CMD
DIAG A4/CMD
DIAG A8/CMD
DIAG 214/CMD
DIAG 270/CMD
SIE/CMD
SIE INTCPT/CMD
FREE TOTL/CMD



1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000



0.999
0.997
0.993
0.998
0.999
0.999
1.000
1.009
0.999
0.999
0.999
1.000
0.999
0.999
0.999



0.999
0.996
0.994
0.998
0.999
0.998
0.999
0.979
1.000
1.000
1.000
0.999
1.000
1.000
1.111


TCPIP Machine
WKSET (V)
TOT CPU/CMD (V)
CP CPU/CMD (V)
VIRT CPU/CMD (V)
DIAG 98/CMD (V)



1.000
1.000
1.000
1.000
1.000



0.957
1.003
1.008
1.000
1.008



0.916
1.017
1.023
1.012
0.980

Note: 2064-109; LPAR; 2 dedicated processors; LPAR Storage: 1G central, 2G expanded; real MDC: default; xstor MDC: bias 0.1; 3420 CMS1 users; External TPNS; T=TPNS, V=VMPRF, H=Hardware Monitor, Unmarked=RTM

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