sadf(1)
NAME
sadf - Display data collected by sar in multiple formats.
SYNOPSIS
sadf [ -C ] [ -c | -d | -g | -j | -p | -x ] [ -H ] [ -h ] [ -T | -t |
-U ] [ -V ] [ -O opts [,...] ] [ -P { cpu [,...] | ALL } ] [ -s [
hh:mm[:ss] ] ] [ -e [ hh:mm[:ss] ] ] [ -- sar_options ] [ interval [
count ] ] [ datafile | -[0-9]+ ]
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 can also be used to draw graphs for the various activities collected by sar and display them as SVG (Scalable Vector Graphics) graphics in your web browser (see option -g). 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 daily data file. It is also possible to enter -1, -2 etc. as an argument to sadf to display data of that days ago. For example, -1 will point at the standard system activity file of yesterday. The standard system activity daily data file is named saDD or saYYYYMMDD, where YYYY stands for the current year, MM for the current month and DD for the current day. sadf will look for the most recent of saDD and saYYYYMMDD, and use it. By default it is located in the /var/log/sysstat directory. Yet it is possible to specify an alternate location for it: If datafile is a directory (instead of a plain file) then it will be considered as the directory where the standard system activity daily data file is located. The interval and count parameters are used to tell sadf to select count records at interval seconds apart. 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
-C Tell sadf to display comments present in file.
-c Convert an old system activity binary datafile (version 9.1.6
and later) to current up-to-date format. Use the following
syntax:
sadf -c old_datafile > new_datafile
-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 timestamp output can be controlled by options -T, -t
and -U.
-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.
-g Print the contents of the data file in SVG (Scalable Vector
Graphics) format. This option enables you to display some fancy
graphs in your web browser. Use the following syntax:
sadf -g your_datafile [ -- sar_options ] > output.svg
and open the resulting SVG file in your favorite web browser.
-H Display only the header of the report (when applicable). If no
format has been specified, then the header data (metadata) of
the data file are displayed.
-h When used in conjunction with option -d, all activities will be
displayed horizontally on a single line.
-j Print the contents of the data file in JSON (JavaScript Object
Notation) format. Timestamps can be controlled by options -T and
-t.
-O opts [,...]
Use the specified options to control SVG output displayed by
sadf -g. Possible options are:
autoscale
Draw all the graphs of a given view as large as possible
based on current view's scale. To do this, a factor (10,
100, 1000...) is used to enlarge the graph drawing. This
option may be interesting when several graphs are drawn
on the same view, some with only very small values, and
others with high ones, the latter making the former
hardly visible.
oneday
Display graphs data over a period of 24 hours. Note that
hours are still printed in UTC by default: You should use
option -T to print them in local time and get a time
window starting from midnight.
skipempty
Do not display views where all graphs have only zero
values.
-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, the device name
(or - if not applicable), the field name and its value. Note
that timestamp output can be controlled by options -T, -t and
-U.
-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
08:00:00. Hours must be given in 24-hour format.
-T Display timestamp in local time instead of UTC (Coordinated
Universal Time).
-t Display timestamp in the original local time of the data file
creator instead of UTC (Coordinated Universal Time).
-U Display timestamp (UTC - Coordinated Universal Time) in seconds
from the epoch.
-V Print version number then exit.
-x Print the contents of the data file in XML format. Timestamps
can be controlled by options -T and -t. The corresponding DTD
(Document Type Definition) and XML Schema are included in the
sysstat source package. They are also available at
http://pagesperso-orange.fr/sebastien.godard/download.html
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 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.
BUGS
SVG output (as created by option -g) is fully compliant with SVG 1.1 standard. Graphics have been successfully displayed in various web browsers, including Firefox, Chrome and Opera. Yet SVG rendering is broken on Microsoft browsers (tested on Internet Explorer 11 and Edge 13.1): So please don't use them.
FILES
/var/log/sysstat/saDD
/var/log/sysstat/saYYYYMMDD
The standard system activity daily data files and their default
location. YYYY stands for the current year, MM for the current
month and DD for the current day.
AUTHOR
Sebastien Godard (sysstat <at> orange.fr)
SEE ALSO
sar(1), sadc(8), sa1(8), sa2(8), sysstat(5) http://pagesperso-orange.fr/sebastien.godard/
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