Evaluate Performance in Detail › Performance Evaluation Report › Interpret the Process Statistics › View Process Statistics with an Emphasis on CPU Metrics

View Process Statistics with an Emphasis on CPU Metrics

The following report example illustrates the process statistics section with a focus on CPU related statistics. The default primary and secondary keys are USERNAME and IMAGENAME. This format of the report is obtained by using the qualifier /PROCESS_STATISTICS=FOCUS=CPU_RELATED. To view the report with a different orientation, provide your choice of sort keys. For example, the following syntax presents the statistics by imagename with a breakdown of who is using those images:

/PROCESS_STATISTICS=(FOCUS=CPU_RELATED,PRIMARY_KEY=IMAGENAME,SECONDARY_KEY=USERNAME) 

Performance                   YQUEM (VAX 6000-440)                      Page   1
Evaluation                                                          PA Vx.x
Tuesday 26-JAN-1997 09:00 to 10:00


      +----------------------------------------------------------------------------------------------------------------+
      | The following table gives the average CPU related statistics for processes during the selected time frame.     |
      +----------------------------------------------------------------------------------------------------------------+

Primary/Secondary Key   %CPU    Cpu time  Uptime Response Terminal Terminl               Img  COM   SftFlt DskI/O TapeI/O Process
User/ Image           Utilizatn  (Min)    (Min)  tim(sec) Inpt/Sec Chrs/sec  Pri  State  Cnt  Prct    /Sec   /Sec   /Sec   Mwait
--------------------- --------- -------- ------- -------- -------- -------- ----- ----- ----- ----- ------- ------- ------- -----
<dfs$comacp> 
   DFS$COM_ACP            0.00    0.000   60.00     0.00     0.00     0.00  10/ 8   HIB    0   0.0    0.00    0.00    0.00
 ARROYO
   (dcl)                  0.01    0.016   96.30     0.01     0.00     0.00   4/ 4   CUR    0  14.6    0.02    0.01    0.00
   COPY                   0.00    0.007    0.03     0.00     0.00     0.00   4/ 4   CUR    1   0.0    0.05    0.01    0.00
   DECPRESENT             0.47    1.127   17.08     0.00     0.00     0.00   5/ 4   CUR    0   3.9    0.60    0.09    0.00
   DIRECTORY              0.01    0.024    0.17     0.02     0.00     0.00   6/ 4   CUR    1   0.0    0.04    0.00    0.00
   MAIL                   0.05    0.128    6.44     0.02     0.04     0.00   5/ 4   CUR    2   1.3    1.07    0.08    0.00
BEYH
   (dcl)                  0.00    0.004   59.10     0.00     0.00     0.00   4/ 4   CUR    0  38.2    0.00    0.00    0.00
   DECW_QUOTE             0.03    0.078   60.00     0.00     0.00     0.00   4/ 4   LEF    0   0.1    0.00    0.01    0.00
   DQS$CLIENT             0.01    0.012    0.26     1.85     0.00     0.00   4/ 4   CUR    2  64.1    0.08    0.01    0.00
   MAIL                   0.20    0.486   14.61     0.05     0.03    16.08   5/ 4   CUR    1   1.1    0.70    1.64    0.00     Scs
   VUE$MASTER             0.00    0.006  120.00     0.00     0.00     0.00   4/ 3   LEF    0   0.0    0.00    0.00    0.00
      .                      .        .       .        .        .        .     .     .     .     .       .       .       .
      .                      .        .       .        .        .        .     .     .     .     .       .       .       .
      .                      .        .       .        .        .        .     .     .     .     .       .       .       .


User Command: ADVISE PERF REPORT PERF/NODE=YQUEM/BEG=26-JAN-1997 09:00:00.00/END=26-JAN-1997 10:00:00.00 -
    /INCLUDE=PROC/PROC=FOCU=CPU/OUT=EXAMPLE_3_CPU.INFO

The following statements describe the columns in the previous example:

• Primary/Secondary Key-Lists the primary and secondary key identifiers for the process detail lines. The keys may be Mode, Username, Imagename, Processname, Account, UIC group, Workloadname, or PID.
• %CPU Utilizatn-Provides the amount of CPU time consumed by the process (or processes) represented as a percentage of the node's total capacity. If this is a cluster report (/PROCESS=CLUSTER), then the figure is a percentage of the cluster's total capacity. The process CPU time is scaled by the node's VUP rating (power rating).
• Cpu time (Min)-Provides the amount of CPU time consumed by the process or processes in minutes.
• Uptime (Min)-Provides the total amount of wall-clock time during which the process(es) were resident on the system, in minutes.
• Response tim(sec)-Represents the average response time per terminal input operation for the process or processes.
• Terminal Inpt/Sec-Provides the average number of Terminal Inputs (completion of a read QIO to the terminal) per second for the process or processes.
• Terminl Chrs/sec-Provides the average number of bytes (characters) per second transferred to, or received from the terminal, for the process or processes.
• Pri-Shows the process's current priority and base priority. For more than one process, they are averages weighted by the process's uptime.
• State-Represents the scheduling state of the process for the most recent data. For more than one process, this column reflects the state of only one of these processes.
• Img Cnt-Provides the number of image activations as a count for the process or processes.
• COM Prct-Provides the percent of time that a process is observed in the COM scheduler state. If more than one process is represented, this figure could be greater than 100, however, it is still a meaningful gauge as to which processes are queued up at the CPU.
• Sft Flt/Sec-Provides the average soft pagefault rate per second for the process or processes.
• Dsk I/O/Sec-Provides the average number of disk I/O operations per second for the process or processes.
• Tape I/O/Sec-Provides the average number of tape I/O operations per second for the process or processes.
• Process Mwait-If the process (or processes) was observed by the data collector in an MWAIT scheduler state, the resource name is provided (RSN). The low numbered resource states have precedence if more than one state was recorded. The order of precedence starting with the highest is: RWAST, MAILBOX, NPDYNMEM, PGFILE, PGDYNMEM, BRKTHRU, IACLOCK, JQUOTA, LOCKID, SWPFILE, MPLEMPTY, MPWBUSY, SCS, CLU.