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DC/UCF Statistics Reports—SREPORTS › Histogram Report

Histogram Report

Overview

Histograms show statistical data for events (for example, program loads into the program pool) in terms of frequency of occurrence within predefined value ranges (for example, number of program loads smaller than 250 bytes, between 250 to 500 bytes, and so on).

Note: For a detailed discussion of histogram categories, classes, default values, and the #HSTDEF macro that overrides default values, see CA IDMS System Operations Guide.

When Statistics Are Written to Log

Like system statistics, histograms are written to the DC/UCF log file at the following times:

Summary of Histogram Record Subtypes

SREPORT 001, IDMS Statistics-Histogram Report, produces a histogram for each of 25 histogram record subtypes. The following Histogram Records table lists each histogram record subtype by identifier and descriptor.

Subtype Identifier

Description

01

PUT JOURNAL request size

02

Program size in bytes

03

Queue record sizes

04

Scratch record sizes

05

User storage size

06

Total size of GET STORAGE requests

07

Programs called by task

08

Programs loaded by task

09

Terminal reads by task

10

Terminal writes by task

11

Terminal errors by task

12

Number of GET STORAGE requests by task

13

Number of GET SCRATCH requests by task

14

Number of PUT SCRATCH requests by task

15

Number of DELETE SCRATCH requests by task

16

Number of GET QUEUE requests by task

17

Number of PUT QUEUE requests by task

18

Number of DELETE QUEUE requests by task

19

Number of GET TIME requests by task

20

Number of SET TIME requests by task

21

Number of database calls by task

22

Number of high stacks by task

23

Total time (in ten-thousandths seconds) spent in user mode by task

24

Total time (in ten-thousandths seconds) spent in system mode by task

25

Total wait time by task

The following report illustrates a page of a sample histogram report; it contains a histogram of the number of programs loaded by task (subtype 8).

Sample SREPORT 001:

 REPORT NO. 01                               IDMS STATSITICS  -  HISTOGRAM REPORT  Rnn.n                         mm/dd/yy PAGE   8


           SELECTED FROM:  yyddd  hh:mm      TO:  yyddd  hh:mm
                  ACTUAL:  yyddd  hh:mm      TO:  yyddd  hh:mm

                                                                                                                    STAT    STAT
                                                                                                                   RECORD  RECORD
                           SUB-TYPE        GW-DESCRIPTION        BINS   LOW END  INCREMENT  LOW VALUE  HIGH VALUE   DATE    TIME



   HISTOGRAM FOR SUB-TYPE     08     PROGRAMS LOADED BY TASK        10        1         2        292          0    yyddd   hh:mm

                                             BELOW      1         292

                                          1     TO      2          38

                                          3     TO      4           7

                                          5     TO      6           3

                                          7     TO      8           0

                                          9     TO     10           1

                                         11     TO     12           0

                                         13     TO     14           0

                                         15     TO     16           1

                                         17     TO     18           0

                                         19     TO     20           0

                                         21   AND ABOVE...          0

                                             TOTAL:               342