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Command: sa | Section: 8 | Source: Digital UNIX | File: sa.8.gz
sa(8) System Manager's Manual sa(8)
NAME
sa - Summarizes accounting records
SYNOPSIS
sa [-abcdDfijkKlmnorstu] [-v Number] [-S SaveFile] [-U UserFile] [File]
The sa command helps you manage the large volume of accounting informa-
tion that is generated each day when system accounting has been enabled
by the system administrator or by the superuser.
FLAGS
Outputs all command names (including those containing unprintable char-
acters and commands used only once) in the last column. In the default
format, such commands are summed and the total is written as the entry
***other. Sorts cpu output column 3 according to the sum of user and
system CPU time divided by the amount of CPU time required to execute
the command entered in the last column (6) as many times as is entered
in the first column (1). Adds three percentage columns to the default
format to list percentages as follows: Lists the percentage of the num-
ber of times each command was executed with respect to the total number
of times all commands were executed (see 1a below). Lists the percent-
age of the amount of real time required to execute each command the
number of times entered in the first column with respect to the total
real time required to execute the total of all commands entered in the
last column (see 2a below). Lists the percentage of the amount of com-
mand CPU time required to execute each command the number of times en-
tered in the first column with respect to the total CPU time required
to execute the total of all commands entered in the last column (see 3a
below). Sorts avio output column (4) in descending order according to
the average number of disk I/O operations. Substitutes tio column (4a)
for the avio (4) column and sorts tio output column 4a in descending
order according to the total number of disk I/O operations. Used with
the -v flag to inhibit interactive threshold comparison of commands.
Reads raw database file /var/adm/pacct only. Does not include records
from summary database file /var/adm/savacct. Outputs the average num-
ber of seconds per command in default columns 2, 3, and 4 instead of
the total time in minutes for the number of calls entered in column 1
for each command. Sorts and outputs records according to the value in
the k output column 5 in descending order. Substitutes k*sec column
(5a) for the k (5) column and sorts the k*sec output column in descend-
ing order according to the value of the memory time integral. Sepa-
rates cpu column 3 into two columns. The new column entries are column
3a, which lists the s (system) part of the CPU minutes, and column 3b,
which lists the u (user) part of the CPU minutes. Outputs a 5-column
file, which provides the information in the following table. Listed
below in left-to-right order are the column identification suffixes, or
none when no suffix is used, and the purpose of the column. Some
columns are identical to the default output format described in the ta-
ble in the DESCRIPTION section; these are marked with *. Username or
user ID as written in the /etc/passwd file. The total number of
processes executed by the user during the accounting period. Same as
column 3 in the default output file. Same as column 4a in the default
output file. Same as column 5a in the default output file. Outputs
the default format sorted in descending order according to the number
of times each command was called. Substitutes, in the default output
format, the ratio of user CPU time (u) to system CPU time (s) as u/s in
column 3 in place of the total user and system CPU time (cpu) for the
number of calls entered in the first column. The default format, de-
scribed under Description, is resorted in ascending order according to
the values entered in column 3, cpu time. This sort is the reverse of
the default sort. Merges information in accounting database file
/var/adm/pacct with summary files you specify with the -U and -S flags,
or merges the database file information with information in default
files /var/adm/usracct or /var/adm/savacct. After the merge, database
file /var/adm/pacct is truncated. The use of this flag also implies the
use of the -a flag. Uses SaveFile as the command summary file in place
of file /var/adm/savacct. Adds the re/cp column (3d) to the default
format. Entries in this column express the ratio of real time to total
(cpu) time, which is the sum of user and system time for each command
entered in the last column. Suspends all other flags and prints the
user numeric ID, the CPU time, memory usage, number of I/O operations,
and the command name for each command. Uses UserFile as the user sum-
mary file in place of file /var/adm/usracct to record per-user statis-
tics output with the -m flag. Prints, as a query, the name of each
command used Number times or fewer to the standard output as follows:
command-- where command-- is the name of the command written to the
standard output by sa.
When you respond by typing y to the standard input, the command record
is omitted from a default-formatted list at the end of the interactive
command queries written to the standard output. The columnar values of
the omitted record are totaled in an added record whose command name is
**junk** in the last column of that list. When you type any other char-
acter, the record for the queried command name remains in the default
output list at the end of the interactive commands written to the stan-
dard input.
DESCRIPTION
When you use the -s flag with the sa command, the information in
/var/adm/pacct is condensed into summary file /var/adm/savacct, which
contains a count of the number of times each command was called and the
amount of time system resources were used.
Condensed information for each user is stored in /var/adm/usracct.
This condensed-information file conserves storage space because on a
large system the /var/adm/pacct daily process file can grow by as many
as 100 blocks per day. Summary files are normally read before account-
ing files are, so that files produced by sa include all available in-
formation.
When a filename is given as the last argument, the named file is
treated as the process accounting file. The /var/adm/pacct file is the
default process accounting file.
When the sa command is invoked with no flags, the default output sum-
mary is an unheaded 6-column file consisting of, in some cases, infor-
mation having an identification suffix in the column. The identifica-
tion suffix may be changed from the default (no flags specified) output
format by using various flags.
The following table lists the columns with left-to-right reference col-
umn numbers (not included in output) for the default format on the
left, the identification suffix for the entry when one is used (or none
when one is not in the middle), and the purpose of the information in
that column on the right.
Columns having more than one identification suffix description (2 and
2a, for example) use the alternate suffix designation in the same sa
output printout column for each of the listed alternate entries for the
column. For example, the second column has two possible suffix desig-
nations: re and %. The re reference in the middle column describes the
information in the second column of the output printed by the sa com-
mand when this suffix is used. Correspondingly, the % reference de-
scribes the information in the sa output when the % suffix is used.
tab(@) ; lb lb l. 1@none@T{ The number of times the command entered in
the last column (6) was called. T} 1a@%@T{ When the -c flag is used,
sa adds this column after column 1 to list the number of times the com-
mand was called (entered in column 1) as a percentage of the total num-
ber of times all commands entered in the last column were called. T}
2@re@T{ The number of real-time (elapsed) minutes required to execute
the command entered in the last column (6) as many times as is entered
in the first column (1). T} 2a@%@T{ When the -c flag is used, sa also
adds this column after column 2 to list the amount of real time (en-
tered in column 2) required to process the command entered in the last
column (6) as many time as is entered in the first column (1), as a
percentage of the total amount of real time required to process all of
the commands listed in the last column. T} 3@cpu@T{ The number of CPU
(user plus system) minutes used to execute the command entered in the
last column (6) as many times as is entered in the first column (1).
T} 3a@u@The number of user CPU minutes used. 3b@s@The number of system
CPU minutes used. 3c@u/s@T{ When the -o flag is used, substitutes u/s
column (3c) for the cpu (3) column and sorts the u/s output column in
descending order according to the ratio of user CPU time to system CPU
time. T} 3d@%@T{ When the -c flag is used, sa also adds this column
after column 3 to list the amount of CPU time (entered in column 3) re-
quired to process the command, entered in the last column, the number
of times, entered in the first column, as a percentage of the total CPU
time required to process all of the commands listed in the last column.
T} 3e@re/cpu@T{ When the -t flag is used, adds the re/cpu column to the
default output format. Entries in this column express the ratio of real
CPU process time to total CPU time (cpu), which includes user and sys-
tem time. These entries appear after entries for the cpu (3) column.
The default output sort remains unchanged. T} 4@avio@T{ The average
number of input/output operations for each listed command. T}
4a@tio@T{ The total number of input/output operations for each listed
command. T} 5@k@T{ The average number of kiloblocks (blocks x 1024) of
memory used for each command process. T} 5a@k*sec@CPU storage-time in-
tegral in K-core seconds (seconds x 1024). 6@none@T{ The command name
(a trailing * [asterisk] indicates a forked program). T}
Other considerations for entries in the printed sa output are as fol-
lows: All times are expressed to nearest one hundredth. The default
format is sorted in descending order according to the values entered in
column 3, cpu time. You should not share accounting files among nodes
in a distributed environment. Each node should have its own copy of
the various accounting files. When you are also using /usr/sbin/acct/*
accounting commands, do not delete accounting records in the
/var/adm/pacct process accounting source file because these records
also provide information for summary data files when the -s option is
used.
EXAMPLES
To summarize accounting records for all commands entered in the
/var/adm/pacct process database file, enter: sa -a Commands used only
once are summed with the entry ***other in the last column of the de-
fault output format. To summarize accounting records according to the
average number of kiloblocks of memory used for each command, enter: sa
-k
FILES
Specifies the command path Process accounting database file. System
process accounting summary file. User process accounting summary file.
RELATED INFORMATION
Commands: acct(8), acctcms(8), acctcom(8), acctcon(8), acctmerg(8),
acctprc(8), fwtmp(8), runacct(8) delim off
sa(8)