Detail VMX System Summary Report

Detail VMX System Summary Report produces a tabular listing of overall system activity in time sequence.
micsrm140
The information is summarized by the number of minutes specified by the user as a run-time execution parameter. Activity is displayed over the period of time specified by the user, again as run-time execution parameters.
Intended use
To monitor system activity at a gross level. It can be used for post-analysis of periods of poor system performance or for performing comparisons of activity at different times of a day, different days of a week, etc.
Format
A tabular report in chronological order, where each line represents a summarization of DETAIL data across a user- specified period of time. The time column represents the timestamp of the end of the summarized interval. The next five columns all represent percentages: percent wait time, percent CP system time, percent CPU supervisor time charged to users, percent user problem state time, and the combined system, supervisor, and problem state percent of time. The next two columns contain the total-to-virtual- ratios: first the ratio of total CPU time used to the CPU time spent in emulation mode; and second, the ratio of the total CPU time charged to users to the time spent in emulation mode.
The remaining columns of the report are described below:
MAIN UTIL
The percent of total pageable frames in the system that are in the available list.
STORAGE CORESAT
A storage saturation index, computed as shown below in the section on calculations. It indicates how many times storage must be expanded to eliminate paging.
CONTENTION RATIO
A ratio of contention for spots on the dispatch list, computed as shown below in the section on calculations. A value of 1 indicates no contention.
PAGE RATE TO ASTOR
The paging rate to auxiliary storage
PAGE RATE TO XSTOR
The paging rate to expanded storage
USERS LOGGED ON
The number of logged on users
USERS TOT
The average number of users active in total time (emulation mode and/or CP Supervisor) per monitor interval
USERS ACTIVE VIRT
The average number of users active in emulation mode per monitor interval
USERS VF
The average number of users utilizing vector facility processing
PCT AREA USED PAGE
The percent of page slots used
PCT AREA USED SPOOL
The percent of spool slots used
An example of this report is shown in
Detail VMX System Summary Report
sample.
Inquiry ID
  • Tabular Report: VMXTX7
D
ata Source (File/Timespan)
VMXSGP01 - DETAIL
Data elements used
SGPPCWAT
-  Percent CPU Wait Time
SGPPCSYS
- Percent CPU Virtual Time
SGPPCSUP
- Percent CPU Supervisor Time
SGPPCPRB
- Percent CPU SYSTEM Time
SGPPCTOT
- Percent CPU Total Time
SGPTVRAT
- Total to Virtual Ratio (System)
SGPTVRVM
- Total to Virtual Ratio (Users)
SGPSTGUT
- Storage Utilization
SGPPGRTA
- Page Rate to Auxiliary Storage
SGPPGRTX
- Page Rate to Expanded Storage
SGPUSRLG
- Number of Users Logged On
SGPACTIV
- Active Users (Total Time)
SGPACTVV
- Active Users (Emulation Mode)
SGPPCPSU
- Page Slot Utilization
SGPPCSSU
-  Spool Slot Utilization
Calculations
The various elements to be reported on are summarized across the user-specified time period, if necessary. The following calculations are then performed for the storage saturation element, CORESAT, and the contention ratio, CRATIO:
CORESAT = SGPDPASZ/(SGPESWSS+SGPRSVPG+SGPLOKFR+SGPRSHRF); CRATIO = (SGPCDISP+SGPCELIG) / SGPCDISP;
Finally, prior to reporting, the "number of users" data elements are averaged by dividing by the number of monitor intervals
Usage considerations
To obtain a detail report, with one line per monitor interval, specify zero for the summarization period in the run-time execution parameters.

Detail VMX System Summary Report Sample

+----------------------------------------------------------------------------------------------------------------------------------+ | VM System Summary Report for 5 Minute Intervals | | Product Manufacturing Corporation | | | |INQUIRY: VMXTX7 RUN DATE: 30JUNyy | | System ID = VM ,Day = 21 | |----------------------------------------------------------------------------------------------------------------------------------| | <---- CPU USE ----> Total/Virt Page Rate <----- Users -----> Pct. Area | | -- USER -- - Ratio - Main Storage Contention - To - Logged <-- Active --> - Used - | | Time Wait System SUPV Virt Total SYS USER Util CORESAT Ratio ASTOR XSTOR On Tot Virt PAGE SPOL | |----------------------------------------------------------------------------------------------------------------------------------| | 8:45:00 80.4 0.5 1.3 17.7 19.5 1.1 1.1 485 0.2 1.0 5 7 61 54 53 20.0 11.9 | | 9:00:00 79.8 0.5 1.3 18.3 20.1 1.1 1.1 513 0.2 1.0 32 34 62 56 55 20.0 11.9 | | 9:15:00 73.4 0.8 1.9 23.9 26.5 1.1 1.1 468 0.2 1.0 115 171 61 57 58 20.1 11.9 | | 9:30:00 77.5 0.6 1.7 20.1 22.4 1.1 1.1 467 0.2 1.0 26 41 61 50 49 20.2 11.9 | | 9:45:00 77.1 0.5 1.6 20.8 22.9 1.1 1.1 502 0.2 1.0 21 36 63 56 55 20.3 11.9 | |10:00:00 78.5 0.9 1.6 18.9 21.5 1.1 1.1 507 0.2 1.0 398 349 64 60 60 21.6 11.9 | |10:15:00 76.6 0.6 1.9 20.8 23.4 1.1 1.1 439 0.2 1.0 64 116 64 60 60 21.8 11.9 | |10:30:00 78.8 0.8 1.6 18.7 21.1 1.1 1.1 473 0.2 1.0 107 205 63 57 55 21.8 11.9 | |10:45:00 58.7 1.0 2.7 37.5 41.2 1.1 1.1 484 0.2 1.0 147 161 64 58 58 21.4 11.9 | |11:00:00 68.8 1.0 2.1 28.0 31.2 1.1 1.1 475 0.2 1.0 170 249 65 61 61 21.8 11.9 | |11:15:00 71.8 0.6 1.5 26.0 28.1 1.1 1.1 460 0.2 1.0 46 87 65 61 60 21.5 11.9 | |11:30:00 73.4 0.7 1.8 23.9 26.5 1.1 1.1 478 0.2 1.0 42 80 64 59 58 21.6 11.9 | |11:45:00 78.2 0.8 1.9 19.0 21.7 1.1 1.1 515 0.2 1.0 49 92 64 57 56 22.0 11.9 | +----------------------------------------------------------------------------------------------------------------------------------+