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SADF(1) Linux User's Manual SADF(1)
NAME
sadf - Display data collected by sar in multiple formats.
SYNOPSIS
sadf [ -d | -D | -H | -p | -x ] [ -h ] [ -t ] [ -V ] [ -P { cpu | ALL } ] [ -s [ hh:mm:ss
] ] [ -e [ hh:mm:ss ] ] [ -- sar_options... ] [ interval [ count ] ] [ datafile ]
DESCRIPTION
The sadf command is used for displaying the contents of data files created by the sar(1)
command. But unlike sar, sadf can write its data in many different formats (CSV, XML,
etc.) The default format is one that can easily be handled by pattern processing commands
like awk (see option -p).
The sadf command extracts and writes to standard output records saved in the datafile
file. This file must have been created by a version of sar which is compatible with that
of sadf. If datafile is omitted, sadf uses the standard system activity file, the
/var/log/sysstat/sadd file, where the dd parameter indicates the current day.
The interval and count parameters are used to tell sadf to select count records at inter-
val second intervals. If the count parameter is not set, then all the records saved in the
data file will be displayed.
All the activity flags of sar may be entered on the command line to indicate which activi-
ties are to be reported. Before specifying them, put a pair of dashes (--) on the command
line in order not to confuse the flags with those of sadf. Not specifying any flags
selects only CPU activity.
OPTIONS
-D This option is equivalent to option -d below, except that the timestamp is always
expressed in seconds since the epoch (00:00:00 UTC 01/01/1970).
-d Print the contents of the data file in a format that can easily be ingested by a
relational database system. The output consists of fields separated by a semicolon.
Each record contains the hostname of the host where the file was created, the
interval value (or -1 if not applicable), the timestamp in a form easily acceptable
by most databases, and additional semicolon separated data fields as specified by
sar_options command line options. Note that the timestamp is displayed in UTC
(Coordinated Universal Time) unless option -t is used. In this latter case, the
timestamp is displayed in local time.
-e [ hh:mm:ss ]
Set the ending time of the report, given in local time. The default ending time is
18:00:00. Hours must be given in 24-hour format. This option is ignored when
option -x is used.
-h When used in conjunction with options -d or -D, indicate that all activities should
be displayed horizontally on a single line of data.
-H Display the header of the data file.
-P { cpu | ALL }
Tell sadf that processor dependent statistics are to be reported only for the spec-
ified processor or processors. Specifying the ALL keyword reports statistics for
each individual processor, and globally for all processors. Note that processor 0
is the first processor.
-p Print the contents of the data file in a format that can easily be handled by pat-
tern processing commands like awk. The output consists of fields separated by a
tab. Each record contains the hostname of the host where the file was created, the
interval value (or -1 if not applicable), the timestamp (UTC value - Coordinated
Universal Time) in seconds from the epoch, the device name (or - if not
applicable), the field name and its value.
-s [ hh:mm:ss ]
Set the starting time of the data (given in local time), causing the sadf command
to extract records time-tagged at, or following, the time specified. The default
starting time is 08:00. Hours must be given in 24-hour format. This option is
ignored when option -x is used.
-t When this option is used together with options -d or -x, the timestamp is displayed
in local time instead of UTC (Coordinated Universal Time). This option is ignored
when options -p or -D are used.
-V Print version number then exit.
-x Print the contents of the data file in XML format. Every activity and the whole
file contents will be displayed. Timestamps are displayed in UTC (Coordinated Uni-
versal Time) unless option -t is used, in which case they are displayed in local
time. The corresponding DTD (Document Type Definition) and XML Schema are included
in the sysstat source package. They are also available at http://pages-
perso-orange.fr/sebastien.godard/sysstat.dtd and http://pages-
perso-orange.fr/sebastien.godard/sysstat.xsd
ENVIRONMENT
The sadf command takes into account the following environment variable:
S_TIME_DEF_TIME
If this variable exists and its value is UTC then sadf will use UTC time instead of
local time to determine the current daily data file located in the /var/log/sysstat
directory.
EXAMPLES
sadf -d /var/log/sysstat/sa21 -- -r -n DEV
Extract memory, swap space and network statistics from system activity file 'sa21',
and display them in a format that can be ingested by a database.
sadf -p -P 1
Extract CPU statistics for processor 1 (the second processor) from current daily
data file, and display them in a format that can easily be handled by a pattern
processing command.
FILES
/var/log/sysstat/sadd
Indicate the daily data file, where the dd parameter is a number representing the
day of the month.
AUTHOR
Sebastien Godard (sysstat <at> orange.fr)
SEE ALSO
sar(1), sadc(8), sa1(8), sa2(8), isag(1)
http://pagesperso-orange.fr/sebastien.godard/
Linux FEBRUARY 2008 SADF(1)
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