Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

pmnameid(3)

NAME

   pmNameID - translate a PMID to a performance metric name

C SYNOPSIS

   #include <pcp/pmapi.h>

   int pmNameID(pmID pmid, char **name);

   cc ... -lpcp

DESCRIPTION

   Given  a  Performance  Metric Identifier (PMID) via pmid, pmNameID will
   determine the corresponding metric name, if  any,  in  the  Performance
   Metrics Name Space (PMNS), and return this via name.

   If the PMNS contains multiple names associated with the requested PMID,
   one of these will be  returned  via  name,  but  there  is  no  way  to
   determine  which of the duplicate names this will be.  See pmNameAll(3)
   if all of the corresponding names are required.

   As of Version 3.10.3 of PCP, duplicate names  for  the  same  PMID  are
   allowed  in  the  PMNS,  so  using  pmNameAll(3)  is  recommended  over
   pmnameID.

   name is a null-byte terminated  string,  allocated  by  pmNameID  using
   malloc(3)  and  it  is  the  caller's responsibility to call free(3) to
   release the storage when the value is no longer required.

   In the absence of errors, pmNameID returns zero.

SEE ALSO

   PMAPI(3),  pmGetChildren(3),  pmGetChildrenStatus(3),   pmGetConfig(3),
   pmLoadASCIINameSpace(3),      pmLoadNameSpace(3),      pmLookupName(3),
   pmNameAll(3), pmNewContext(3), pcp.conf(5), pcp.env(5) and pmns(5).

DIAGNOSTICS

   PM_ERR_NOPMNS
          Failed to access  a  PMNS  for  operation.   Note  that  if  the
          application  hasn't a priori called pmLoadNameSpace(3) and wants
          to use the distributed PMNS, then a call  to  pmNameID  must  be
          made after the creation of a context (see pmNewContext(3)).

   PM_ERR_PMID
          pmid does not correspond to a defined PMID in the PMNS.

   PM_ERR_*
          Other  diagnostics  are for protocol failures when accessing the
          distributed PMNS.



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.


Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.


Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.


Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner