NAME
sadf - Display data collected by sar in multiple
formats.
SYNOPSIS
sadf [ -d | -D | -H | -p | -x ] [ -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.
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/sa/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 interval
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 activities 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. The default ending time is
18:00:00. Hours must be given in 24-hour format. Note that if you
also use -p option, ending time will have to be given in UTC
(Coordinated Universal Time).
- -H
- Display the header of the data file.
- -P { cpu | ALL }
- Tell sadf that processor dependent statistics are to be
reported only for the specified 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 pattern 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, 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. Note that if you also use -p option,
starting time will have to be given in UTC (Coordinated Universal
Time).
- -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 Universal Time) unless option -t
is used, in which case they are displayed in local time. The
corresponding DTD (Document Type Definition) is included in the
sysstat source package. It is also available at
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/sa
directory.
EXAMPLES
sadf -d /var/log/sa/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/sa/sadd
- Indicate the daily data file, where the dd parameter is
a number representing the day of the month.
AUTHOR
Sebastien Godard (sysstat <at> wanadoo.fr)
SEE ALSO
sar(1),
(8),
(8),
(8),
isag(1),
mpstat(1),
iostat(1),
(8)