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RMF Workload Activity reports and RMF Monitor III
Performance metrics include transaction rates and response times. Resource utilization includes CPU, I/O (channel), and storage utilization.
- Transactions/second
- This is shown in the AVG, MPL, and AVG ENC fields which is equal to the average number of enclaves in the period in the RMF™ Monitor.
- Response times
- The actual response times of the WLM transaction is shown in the TRANS.-TIME SS.TTT' column n the RMF Monitor and are measured in milliseconds. (This also includes time waiting on WLM queue.)
- Service Rates
- Resource utilization in CPU service units, and Service Units per Sec. The APPL% field shows the number of processor engines (CPs) required to drive the work in the service (report) class.
Controller Regions Example: Here
is the report for the WebSphere® controller regions
which were all assigned a particular reporting class according to
the STC classification rules based on the started class jobname.
There is only one transaction active in the system, there are no response
time figures, and required 37.2% of a processor engine to support
its work.
TRANSACTIONS TRANS.-TIME SS.TTT ---SERVICE-- --SERVICE RATES-- AVG 1.00 ACTUAL 0 IOC 0 ABSRPTN 89615 MPL 1.00 EXECUTION 0 CPU 522567 TRX SERV 89615 ENDED 0 QUEUED 0 MSO 10159K TCB 39.9 END/S 0.00 R/S AFFINITY 0 SRB 61728 SRB 4.7 #SWAPS 0 INELIGIBLE 0 TOT 10743K RCT 0.0 EXCTD 0 CONVERSION 0 /SEC 89630 IIT 0.0 AVG ENC 0.00 STD DEV 0 HST 0.0 REM ENC 0.00 APPL % 37.2
Servant Regions Example: Here is the report
for the WebSphere servant regions which were all
assigned a particular reporting class according to the STC classification
rules based on the stared class jobname. There are only two transactions
active in the system (meaning there were two servant regions), there
are no response time figures, and they required 10% of a processor
engine to support their work.
TRANSACTIONS TRANS.-TIME SS.TTT ---SERVICE-- --SERVICE RATES-- AVG 2.00 ACTUAL 0 IOC 0 ABSRPTN 122075 MPL 2.00 EXECUTION 0 CPU 143957 TRX SERV 122075 ENDED 0 QUEUED 0 MSO 29113K TCB 11.0 END/S 0.00 R/S AFFINITY 0 SRB 12460 SRB 1.0 #SWAPS 0 INELIGIBLE 0 TOT 29270K RCT 0.0 EXCTD 0 CONVERSION 0 /SEC 244192 IIT 0.0 AVG ENC 0.00 STD DEV 0 HST 0.0 REM ENC 0.00 APPL % 10.0
WebSphere Transactions (Enclaves)
Example: Here is the report for the real WebSphere transaction
work which runs as enclaves in this particular reporting class. The
average number of these kind of transactions active in the system
was 241.52, the average response time was 276 milliseconds, and required
2.129 processor engines to support this work.
TRANSACTIONS TRANS.-TIME SS.TTT ---SERVICE-- --SERVICE RATES-- AVG 241.52 ACTUAL 276 IOC 0 ABSRPTN 115 MPL 241.52 EXECUTION 272 CPU 3343K TRX SERV 115 ENDED 106717 QUEUED 4 MSO 0 TCB 255.5 END/S 890.32 R/S AFFINITY 0 SRB 0 SRB 0.0 #SWAPS 0 INELIGIBLE 0 TOT 3343K RCT 0.0 EXCTD 0 CONVERSION 0 /SEC 17 IIT 0.0 AV ENC 241.52 STD DEV 66 HST 0.0 REM ENC 0.00 APPL % 212.9
Delays Example: The QMPL field in the following
report means that the server was waiting for a Server Region to select
work off the WLM queue. Here is a queue delay report which shows
that work was delayed 23.5% of the time waiting for the CPU and 12.6%
of the time waiting for a servant region:
EX PERF AVG --USING%-- ----- EXECUTION DELAYS % ----- VEL INDX ADRSP CPU I/O TOTAL CPU QMPL GOAL 40.0% ACTUALS 45.3% .89 13.4 0.1 0.0 36.1 23.5 12.6
Started Class Classification Example: Here is
an example of the STC classification rules/panel in WLM which can
be used to classify the non-enclave time in the websphere server regions.
WebSphere production controller region
with a jobname of WSPRODC is assigned a service class of STCCR and
reporting class of RCTLREG, production controller region with a jobname
of WSPRODC is assigned a service class of STCSR and reporting class
of RSRVREG, and testregions (servant and controllers) with a jobname
starting with WSTare assigned a service class of STCWSTST and reporting
class of RWSTST.
Subsystem Type . . . . . . . : STC Description . . . . . . . . . All started tasks -------Qualifier------------- -------Class-------- Type Name Start Service Report Type Name Start Service Report DEFAULTS: STCMED__ RSTCMED_ 1 TNG WSPRODC ___ STCCR___ RCTLREG_ 1 TNG WSPRODS ___ STCSR___ RSRVREG_ 1 TNG WST* ___ STCWSTST RWSTST__