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Langue: en

Autres versions - même langue

Version: SGI (fedora - 01/12/10)

Section: 1 (Commandes utilisateur)


pmnsmerge - merge multiple versions of a Performance Co-Pilot PMNS


$PCP_BINADM_DIR/pmnsmerge [-adfv] infile [...] outfile


pmnsmerge merges multiple instances of a Performance Metrics Name Space (PMNS), as used by the components of the Performance Co-Pilot (PCP). Each infile argument names a file that includes the root of a PMNS, of the form
 root {
     /* arbitrary stuff */

The order in which the infile files are processed is determined by the presence or absence of embedded control lines of the form #define _DATESTAMP YYYYMMDD Files without a control line are processed first and in the order they appear on the command line. The other files are then processed in order of ascending _DATESTAMP. The -a option suppresses the argument re-ordering and processes all files in the order they appear on the command line. The merging proceeds by matching names in PMNS, only those new names in each PMNS are considered, and these are added after any existing metrics with the longest possible matching prefix in their names. For example, merging these two input PMNS

 root {                    root {
                               surprise  1:1:3
     mine       1:1:1          mine      1:1:1
     foo                       foo
     yours      1:1:2 
 }                         }
 foo {                     foo {
     fumble     1:2:1
                               mumble    1:2:3
     stumble    1:2:2          stumble   1:2:2
 }                         }
                           yawn {
                               sleepy    1:3:1
Produces the resulting PMNS in out.
 root {
     mine      1:1:1
     yours     1:1:2 
     surprise  1:1:3
 foo {
     fumble    1:2:1
     stumble   1:2:2
     mumble    1:2:3
 yawn {
     sleepy    1:3:1
To avoid accidental over-writing of PMNS files, outfile is expected to not exist when pmnsmerge starts. The -f option forces the removal of outfile (if it exists), before the check is made.

The -d option allows the resultant PMNS to optionally contain duplicate PMIDs with different names in the PMNS. By default this condition is considered an error.

The -v option produces one line of diagnostic output as each infile is processed.

Once all of the merging has been completed, pmnsmerge will attempt to compile the resultant namespace using pmnscomp(1) - if this fails for any reason, outfile will still be created, but pmnsmerge will report the problem and exit with non-zero status.


Once the writing of the new outfile file has begun, the signals SIGINT, SIGHUP and SIGTERM will be ignored to protect the integrity of the new file.


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(4).


pmnsadd(1), pmnscomp(1), pmnsdel(1), pcp.conf(4), pcp.env(4) and pmns(4).
Toutes les opérations du langage en tant qu'instrument du raisonnement
peuvent se conduire dans un système de signes composé des éléments
suivants :
1) Des symboles littéraux tels que x, y, etc. représentant les choses en
tant qu'objets de nos conceptions.
2) Des signes d'opérations tels que +, -, ×, qui traduisent les
opérations de l'esprit par lesquelles les conceptions des choses sont
combinées ou séparées de manière à former de nouvelles conceptions
comprenant les mêmes éléments.
3) Le signe d'identité =.
Et ces symboles logiques voient leur usage soumis à des lois
déterminées, qui en partie s'accordent et en partie ne s'accordent pas
avec les lois et symboles correspondants dans la science de l'algèbre.
-+- George Boole, Les lois de la pensée -+-