NAME

       pmiPutMark - write a <mark> record to a PCP archive

C SYNOPSIS

       #include <pcp/pmapi.h>
       #include <pcp/import.h>

       int pmiPutMark(void);

       cc ... -lpcp_import -lpcp

Perl SYNOPSIS

       use PCP::LogImport;

       pmiPutMark();

DESCRIPTION

       As  part of the Performance Co-Pilot Log Import API (see LOGIMPORT(3)), pmiPutMark writes a <mark> record
       to the current PCP output archive.  This is required when there is a temporal discontinuity  between  the
       current input source and the next input source, if any, and should be called after the final call to pmi‐
       Write(3)  for  the  current  input.  If there is no next input to be processed or no temporal gap between
       sources, then the <mark> record is not required.

       The <mark> record is used to signify a temporal gap, so that when replaying the output PCP  archive,  in‐
       terpolation  of  metric  values  should  not be performed between the last timestamp in the current input
       source to the first timestamp in the next input source, i.e. across the <mark> record.

DIAGNOSTICS

       pmiPutMark returns zero on success else a negative value that can be turned  into  an  error  message  by
       calling pmiErrStr(3).

SEE ALSO

       LOGIMPORT(3),  pmiAddInstance(3), pmiAddMetric(3), pmiErrStr(3), pmiPutResult(3), pmiPutValue(3), pmiPut‐
       ValueHandle(3), pmiPutText(3), pmiPutLabel(3) and pmiWrite(3).

Performance Co-Pilot                                                                               PMIPUTMARK(3)