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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT | EXAMPLES | BUGS | FILES | AUTHOR | SEE ALSO | COLOPHON |
SADF(1) Linux User's Manual SADF(1)
sadf - Display data collected by sar in multiple formats.
sadf [ -C ] [ -c | -d | -g | -j | -p | -r | -x ] [ -H ] [ -h ] [ -T |
-t | -U ] [ -V ] [ -O opts [,...] ] [ -P { cpu_list | ALL } ] [ -s [
hh:mm[:ss] ] ] [ -e [ hh:mm[:ss] ] ] [ -- sar_options ] [ interval [
count ] ] [ datafile | -[0-9]+ ]
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/sa 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.
-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 the output of sadf. The
following options are used to control SVG output displayed by
sadf -g:
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.
height=value
Set SVG canvas height to value.
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.
packed
Group all views from the same activity (and for the
same device) on the same row.
showidle
Also display %idle state in graphs for CPU statistics.
showinfo
Display additional information (such as the date and
the host name) on each view.
skipempty
Do not display views where all graphs have only zero
values.
The following option is used to control raw output displayed
by sadf -r:
showhints
Display additional noteworthy information, such as
e.g., a monotonic counter value which has decreased.
-P { cpu_list | ALL }
Tell sadf that processor dependent statistics are to be
reported only for the specified processor or processors.
cpu_list is a list of comma-separated values or range of
values (e.g., 0,2,4-7,12-). Note that processor 0 is the
first processor, and processor all is the global average among
all processors. Specifying the ALL keyword reports statistics
for each individual processor, and globally for all
processors.
-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.
-r Print the raw contents of the data file. With this format, the
values for all the counters are displayed as read from the
kernel, which means e.g., that no average values are
calculated over the elapsed time interval.
-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
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.
sadf -d /var/log/sa/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.
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.
/var/log/sa/saDD
/var/log/sa/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.
Sebastien Godard (sysstat <at> orange.fr)
sar(1), sadc(8), sa1(8), sa2(8), sysstat(5)
http://pagesperso-orange.fr/sebastien.godard/
This page is part of the sysstat (sysstat performance monitoring
tools) project. Information about the project can be found at
⟨http://sebastien.godard.pagesperso-orange.fr/⟩. If you have a bug
report for this manual page, send it to systat-AT-orange.fr. This
page was obtained from the project's upstream Git repository
⟨https://github.com/sysstat/sysstat.git⟩ on 2017-07-05. If you dis‐
cover any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
Linux APRIL 2017 SADF(1)
Pages that refer to this page: sar(1), sar2pcp(1), sa1(8), sa2(8), sadc(8)