2064-1C8, 2G/10G
Workload: CMS1 with Internal TPNS:
Processor model: 2064-1C8
Processors used: 8
Storage:
Real: 2GB (default MDC)
Expanded: 10GB (MDC fixed at 512M)
DASD:
Type of DASD | Control Unit | Number of Paths |
|
| - Number of Volumes - TDSK |
|
|
|
|---|---|---|---|---|---|---|---|---|
| 3390-3 | RVA T82 | 8 | 15 | 8 | 4 | 150 | | 2 |
Note: The DASD volumes are distributed across 13 RVA T82 subsystems. Each subsystem has 1536M of cache.
Driver: TPNS Think time distribution: Bactrian CMS block size: 4KB Virtual Machines:
Virtual Machine |
|
| Machine Size |
|
|
|
|---|---|---|---|---|---|---|
| TP1 | 1 | TPNS | 256M | 5000 | 14000 | QUICKDSP ON |
| TCPIPn | 4 | TCPIP | 512M | 3000 | 14000 | QUICKDSP ON |
| WRITER | 1 | CP monitor | 2M | 100 | | QUICKDSP ON |
| Unnnnn | 10800 | Users | 3M | 100 | |
For this environment, real storage is sufficiently constrained that there is heavy paging to expanded storage. However, expanded storage is sufficiently large that DASD paging is essentially eliminated.
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. RTM and TPNS log data were not collected for these measurements. When available, corresponding VMPRF data has been substituted for the RTM data normally shown.
The results show that total processing requirements (PBT/CMD (H)) of z/VM 3.1.0 with 31-bit CP are equivalent to VM/ESA 2.4.0. Total processing requirements of z/VM 3.1.0 with 64-bit CP are about 1.5% higher than these as the result of a 5.7% increase in CP CPU time (CP/CMD (H)).
These results focus on migration of CP to z/VM 3.1.0. The CMS and GCS components were kept at the VM/ESA 2.4.0 level for all three measurements. This means that the z/VM 3.1.0 results do not include the effects of the Rexx runtime improvement (see Miscellaneous CMS Improvements), which reduces total CPU time per command command by about 0.2% for this workload.
Table 1. CMS-Intensive Migration from VM/ESA 2.4.0: 2064-1C8, 2G/10G
Release (CP) CP Run ID | 2.4.0 31 bit E240G823 | 3.1.0 31 bit E1228822 | 3.1.0 64 bit E1228824 |
|---|---|---|---|
Response Time TRIV INT NONTRIV INT TOT INT |
|
|
|
Throughput ETR (T) ITR (H) |
|
|
|
Proc. Usage PBT/CMD (H) CP/CMD (H) EMUL/CMD (H) |
|
|
|
Processor Util. TOTAL (H) UTIL/PROC (H) UTIL/PROC TOTAL EMUL (H) TOTAL EMUL MASTER TOTAL MASTER CP MASTER EMUL TVR(H) TVR |
|
|
|
Paging READS/SEC WRITES/SEC PAGE/CMD PAGE IO RATE PAGE IO/CMD XSTOR IN/SEC XSTOR OUT/SEC XSTOR/CMD |
|
|
|
Queues ELIGIBLE LIST |
|
|
|
I/O RIO RATE RIO/CMD NONPAGE RIO/CMD DASD RESP TIME MDC REAL SIZE (MB) MDC XSTOR SIZE (MB) MDC HIT RATIO |
|
|
|
PRIVOPs PRIVOP/CMD DIAG/CMD |
|
|
|
| Note: 2064-1C8; 8 processors; 2G central storage, 10G expanded storage; real MDC: default, xstor MDC: 512M; 11800 CMS1 users; internal TPNS; CMS and GCS are 2.4.0; T=TPNS, H=Hardware Monitor, Unmarked=VMPRF | |||
Table 2. CMS-Intensive Migration from VM/ESA 2.4.0: 2064-1C8, 2G/10G - Ratios
Release (CP) CP Run ID | 2.4.0 31 bit E240G823 | 3.1.0 31 bit E1228822 | 3.1.0 64 bit E1228824 |
|---|---|---|---|
Response Time TRIV INT NONTRIV INT TOT INT |
|
|
|
Throughput ETR (T) ITR (H) |
|
|
|
Proc. Usage PBT/CMD (H) CP/CMD (H) EMUL/CMD (H) |
|
|
|
Processor Util. TOTAL (H) UTIL/PROC (H) UTIL/PROC TOTAL EMUL (H) TOTAL EMUL MASTER TOTAL MASTER CP MASTER EMUL TVR(H) TVR |
|
|
|
Paging WRITES/SEC PAGE/CMD XSTOR IN/SEC XSTOR OUT/SEC XSTOR/CMD |
|
|
|
I/O RIO RATE RIO/CMD NONPAGE RIO/CMD DASD RESP TIME MDC REAL SIZE (MB) MDC XSTOR SIZE (MB) MDC HIT RATIO |
|
|
|
PRIVOPs PRIVOP/CMD DIAG/CMD |
|
|
|
| Note: 2064-1C8; 8 processors; 2G central storage, 10G expanded storage; real MDC: default, xstor MDC: 512M; 11800 CMS1 users; internal TPNS; CMS and GCS are 2.4.0; T=TPNS, H=Hardware Monitor, Unmarked=VMPRF | |||