04-06-2010
Last winter I had a pretty long beard but I keep it trimmed down now. I don't shave and still have a beard but it is trimmed and kept neat. This was after several women told me I look way better with the trimmed beard over the wizard's beard (mountain man, etc).
Plus, it gets hot here in the summer.
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LEARN ABOUT CENTOS
pmtrimnamespace
PMTRIMNAMESPACE(3) Library Functions Manual PMTRIMNAMESPACE(3)
NAME
pmTrimNameSpace - prune a performance metrics name space
C SYNOPSIS
#include <pcp/pmapi.h>
int pmTrimNameSpace(void);
cc ... -lpcp
DESCRIPTION
If the current Performance Metrics Application Programming Interface (PMAPI) context corresponds to a version 1 archive log of Performance
Co-Pilot (PCP) performance metrics (as collected by pmlogger(1) -V1), then the currently loaded Performance Metrics Name Space (PMNS), is
trimmed to exclude metrics for which no description can be found in the archive. The PMNS is further trimmed to remove empty subtrees that
do not contain any performance metric.
Since PCP archives usually contain some subset of all metrics named in the default PMNS, pmTrimNameSpace effectively trims the applica-
tion's PMNS to contain only the names of the metrics in the archive.
Since PCP 2.0, pmTrimNameSpace is only needed for dealing with version 1 archives. Version 2 archives actually store the "trimmed" PMNS.
Prior to any trimming, the PMNS is restored to the state as of the completion of the last pmLoadASCIINameSpace(3) or pmLoadNameSpace(3), so
the effects of consecutive calls to pmTrimNameSpace with archive contexts are not additive.
If the current PMAPI context corresponds to a host and a pmLoadASCIINameSpace(3) or pmLoadNameSpace(3) call was made, then the PMNS reverts
to all names loaded into the PMNS at the completion of the last pmLoadASCIINameSpace(3) or pmLoadNameSpace(3), i.e. any trimming is undone.
On success, pmTrimNameSpace returns zero.
SEE ALSO
pmlogger(1), PMAPI(3), pmLoadASCIINameSpace(3), pmLoadNameSpace(3), pmNewContext(3) and pmns(5).
DIAGNOSTICS
PM_ERR_NOPMNS
you must have loaded a PMNS using pmLoadASCIINameSpace(3) or pmLoadNameSpace(3) before calling pmTrimNameSpace
PM_ERR_NOCONTEXT
the current PMAPI context is invalid
Performance Co-Pilot PCP PMTRIMNAMESPACE(3)