System Administration Guide

Daily Command Summary

The daily command summary report shows the system resource use by command. With this report, you can identify the most heavily used commands and, based on how those commands use system resources, gain insight on how best to tune the system. The format of the daily and monthly reports are virtually the same; however, the daily summary reports only on the current accounting period while the monthly summary reports on the start of the fiscal period to the current date. In other words, the monthly report reflects the data accumulated since the last invocation of monacct.

These reports are sorted by TOTAL KCOREMIN, which is an arbitrary gauge but often a good one for calculating drain on a system.

A sample daily command summary appears below.

Feb 27 12:25 1997  DAILY COMMAND SUMMARY Page 1
 
                                   TOTAL COMMAND SUMMARY
COMMAND NUMBER    TOTAL    TOTAL    TOTAL   MEAN    MEAN    HOG    CHARS  BLOCKS
NAME     CMDS  KCOREMIN  CPU-MIN  REAL-MIN  SIZE-K  CPU-MIN FACTOR TRNSFD   READ
 
TOTALS   1067   2730.99    2.01    1649.38 1361.41   0.00  0.00    6253571  2305
 
sendmail   28   1085.87    0.05      0.24  23865.20  0.00  0.19     101544    39
admintoo    3    397.68    0.12   1132.96  3443.12   0.04  0.00     680220    83 
sh        166    204.78    0.31    161.13  651.80    0.00  0.00     598158    20 
nroff      12    167.17    0.14      0.24  1205.55   0.01  0.59     709048    22 
find       10    151.27    0.27      2.72  563.40    0.03  0.10     877971  1580
acctdusg    3     87.40    0.13      2.74  698.29    0.04  0.05     883845   203 
lp         10     74.29    0.05      0.22  1397.38   0.01  0.24     136460    57 
expr       20     67.48    0.02      0.06  3213.24   0.00  0.34       6380     1 
mail.loc    3     65.83    0.01      0.04  11285.60  0.00  0.15      24709    15
cmdtool     1     37.65    0.02     20.13  2091.56   0.02  0.00     151296     1 
uudemon.  105     37.38    0.09      0.32  435.46    0.00  0.27      62130    17 
csh         6     35.17    0.05     57.28  756.30    0.01  0.00     209560    13 
col        12     31.12    0.06      0.26  523.00    0.00  0.23     309932     0 
ntpdate    22     27.55    0.05     11.18  599.00    0.00  0.00      22419     0 
uuxqt      44     18.66    0.04      0.06  417.79    0.00  0.74      32604     3 
man        12     15.11    0.03      7.05  503.67    0.00  0.00      85266    47
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The data provided, by column, in the daily command summary is described in Table 61-5.

Table 61-5 Daily Command Summary


Column	Description
`COMMAND NAME`	Name of the command. Unfortunately, all shell procedures are lumped together under the name `sh` because only object modules are reported by the process accounting system. It's a good idea to monitor the frequency of programs called `a.out` or `core` or any other unexpected name. `acctcom` can be used to determine who executed an oddly named command and if superuser privileges were used.
`NUMBER CMNDS`	Total number of invocations of this particular command during prime time.
`TOTAL KCOREMIN`	Total cumulative measurement of the Kbyte segments of memory used by a process per minute of run time.
`TOTAL CPU-MIN:`	Total processing time this program has accumulated during prime time.
`TOTAL REAL-MIN`	Total real-time (wall-clock) minutes this program has accumulated.
`MEAN SIZE-K`	Mean of the `TOTAL` `KCOREMIN` over the number of invocations reflected by `NUMBER` `CMDS`.
`MEAN CPU-MIN`	Mean derived between the `NUMBER` `CMDS` and `TOTAL CPU-MIN`.
`HOG FACTOR`	Total CPU time divided by elapsed time. Shows the ratio of system availability to system use, providing a relative measure of total available CPU time consumed by the process during its execution.
`CHARS TRNSFD`	Total count of the number of characters pushed around by the read and write system calls. May be negative due to overflow.
`BLOCKS READ`	Total count of the physical block reads and writes that a process performed.