04-07-2011
None of your disks seems to be all that busy - the service times are all really good. The vmstat output doesn't look exceptional.
Yet the Sybase DB processes are pegging their CPUs.
Looks like you could use some serious database tuning.
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LEARN ABOUT CENTOS
pmdapmid
PMDAPMID(3) Library Functions Manual PMDAPMID(3)
NAME
pmdaPMID - translate a dynamic performance metric name into a PMID
C SYNOPSIS
#include <pcp/pmapi.h>
#include <pcp/impl.h>
#include <pcp/pmda.h>
int pmdaPMID(char *name, pmID *pmid, pmdaExt *pmda);
cc ... -lpcp_pmda -lpcp
DESCRIPTION
As part of the Performance Metrics Domain Agent (PMDA) API (see PMDA(3)), pmdaPMID is the generic callback for translating a dynamic metric
name into a PMID (pmid).
Because implementing dynamic performance metrics requires specific PMDA support, and the facility is an optional component of a PMDA (most
PMDAs do not support dynamic performance metrics), pmdaPMID is a skeleton implementation that returns PM_ERR_NAME.
A PMDA that supports dynamic performance metrics will provide a private callback that replaces pmdaPMID (by assignment to version.four.pmid
of the pmdaInterface structure) and implements the translation from a dynamic performance metric name into the associated pmid.
DIAGNOSTICS
pmdaPMID returns PM_ERR_NAME if the name is not recognized or cannot be translated, else returns 0.
CAVEAT
The PMDA must be using PMDA_PROTOCOL_4 or later, as specified in the call to pmdaDSO(3) or pmdaDaemon(3).
SEE ALSO
PMAPI(3), PMDA(3), pmdaDaemon(3), pmdaDSO(3), pmdaMain(3) and pmLookupName(3).
Performance Co-Pilot PCP PMDAPMID(3)