bionic (1) sar2pcp.1.gz

NAME

       sar2pcp - import sar data and create a PCP archive

SYNOPSIS

       sar2pcp infile outfile

DESCRIPTION

       sar2pcp  is  intended  to  read  a binary System Activity Reporting (sar) data file as created by sadc(1)
       (infile) and translate this into a Performance Co-Pilot (PCP) archive with the basename outfile.

       However, if infile has the suffix ``.xml'', then it will be considered already in XML format and  sar2pcp
       will operate directly on it.

       The  resultant  PCP  achive  may be used with all the PCP client tools to graph subsets of the data using
       pmchart(1), perform data reduction and reporting, filter with the PCP inference engine pmie(1), etc.

       A series of physical files will be created with the prefix outfile.  These are outfile.0 (the performance
       data),  outfile.meta  (the  metadata  that  describes the performance data) and outfile.index (a temporal
       index to improve efficiency of replay operations for the archive).  If any of these files exists already,
       then sar2pcp will not overwrite them and will exit with an error message of the form

       __pmLogNewFile: ``blah.0'' already exists, not over-written

       sar2pcp  is a Perl script that uses the PCP::LogImport Perl wrapper around the PCP libpcp_import library,
       and as such could be used as an example to develop new tools to import other types  of  performance  data
       and create PCP archives.  A Python wrapper module is also available.

CAVEATS

       When not using the XML input option, sar2pcp requires infile to have been created by a version of sadc(1)
       from <http://sebastien.godard.pagesperso-orange.fr/> which includes  the  sadf(1)  utility  to  translate
       infile into an XML stream (any since version 6); sar2pcp will automatically run sadf(1) and translate the
       resultant XML into a PCP archive.

       When using binary sadc files it is important to ensure the installed sadf is compatible with the  version
       of  sadc that originally generated the binary files.  Simply assuming a newer installed version will work
       is unfortunately far too optimistic, and nor should one assume that binary data from different  platforms
       (e.g.  different endianness) will work - these issues are due to limitations in sadc and sadf, and not in
       sar2pcp itself.

       Fortunately, the sadf message indicating that an incompatibility has been detected is  consistent  across
       versions, and is always prefixed

       Invalid system activity file

       Using an XML infile has the advantage that the installed version of sadf is completely bypassed.  sar2pcp
       undertakes to transform any valid XML produced by any of the different variations of sadf  into  a  valid
       PCP  archive.   Any version of PCP will be able to interpret the archive files produced by any version of
       sar2pcp, and you are also free to move the binary PCP  archive  between  different  platforms,  different
       hardware, even different operating systems - it Just Works (TM).

PCP ENVIRONMENT

       Environment  variables with the prefix PCP_ are used to parameterize the file and directory names used by
       PCP.  On each installation, the file /etc/pcp.conf contains the local values for  these  variables.   The
       $PCP_CONF variable may be used to specify an alternative configuration file, as described in pcp.conf(5).

SEE ALSO

       pmie(1),   pmchart(1),   pmlogger(1),   pmlogextract(1),   pmlogsummary(1),   sadc(1),  sadf(1),  sar(1),
       Date::Parse(3pm), Date::Format(3pm), PCP::LogImport(3pm), XML::TokeParser(3pm) and LOGIMPORT(3).