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SADF(1) Linux User's Manual SADF(1)
NAME
sadf - Display data collected by sar in multiple formats.
SYNOPSIS
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] ] ] [ --dev= dev_list ] [ --fs=
fs_list ] [ --iface= iface_list ] [ -- sar_options ] [ interval [ count
] ] [ datafile | -[0-9]+ ]
DESCRIPTION
The sadf command is used for displaying the contents of data files cre-
ated 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 op-
tion -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 ac-
tivity file of yesterday.
The standard system activity daily data file is named saDD or saYYYYM-
MDD, 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 in-
dicate 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 syn-
tax:
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.
--dev=dev_list
Specify the block devices for which statistics are to be dis-
played by sadf. dev_list is a list of comma-separated device
names. Useful with option -d from sar.
-e [ hh:mm[:ss] ]
Set the ending time of the report, given in local time. The de-
fault ending time is 18:00:00. Hours must be given in 24-hour
format.
--fs=fs_list
Specify the filesystems for which statistics are to be displayed
by sadf. fs_list is a list of comma-separated filesystem names
or mountpoints. Useful with option -F from sar.
-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.
--iface=iface_list
Specify the network interfaces for which statistics are to be
displayed by sadf. iface_list is a list of comma-separated in-
terface names. Useful with options -n DEV and -n EDEV from sar.
-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 win-
dow 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.
showtoc
Add a table of contents at the beginning of the SVG out-
put, consisting of links pointing at the first graph of
each activity.
skipempty
Do not display views where all graphs have only zero val-
ues.
The following option is used to control raw output displayed by
sadf -r:
debug
Display additional information, mainly useful for debug-
ging purpose.
-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. Spec-
ifying 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 ker-
nel, 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 follow-
ing, 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 Uni-
versal 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://pages-
perso-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/sa directory.
EXAMPLES
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.
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/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.
AUTHOR
Sebastien Godard (sysstat <at> orange.fr)
SEE ALSO
sar(1), sadc(8), sa1(8), sa2(8), sysstat(5)
https://github.com/sysstat/sysstat
http://pagesperso-orange.fr/sebastien.godard/
Linux JULY 2018 SADF(1)
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