1"use strict";(self.webpackChunkpc_thoughts=self.webpackChunkpc_thoughts||[]).push([[730],{28453:(e,t,i)=>{i.d(t,{R:()=>a,x:()=>o});var n=i(96540);const s={},p=n.createContext(s);function a(e){const t=n.useContext(p);return n.useMemo(function(){return"function"==typeof e?e(t):{...t,...e}},[t,e])}function o(e){let t;return t=e.disableParentContext?"function"==typeof e.components?e.components(s):e.components||s:a(e.components),n.createElement(p.Provider,{value:t},e.children)}},36241:(e,t,i)=>{i.r(t),i.d(t,{assets:()=>c,contentTitle:()=>o,default:()=>d,frontMatter:()=>a,metadata:()=>n,toc:()=>r});var n=i(59166),s=i(74848),p=i(28453);const a={authors:"paul",date:"2014-03-09T11:39",image:"assets/pcp-pmda-cpp.png",slug:"pcp-qpid-pmda",tags:["c++","pcp","pmda","qpid"],title:"PCP, Qpid, and PMDA++"},o=void 0,c={authorsImageUrls:[void 0]},r=[{value:"PMDA++",id:"pmda",level:2},{value:"Qpid PMDA",id:"qpid-pmda",level:2},{value:"Project Pages",id:"project-pages",level:2}];function l(e){const t={a:"a",blockquote:"blockquote",h2:"h2",img:"img",li:"li",p:"p",ul:"ul",...(0,p.R)(),...e.components};return(0,s.jsxs)(s.Fragment,{children:[(0,s.jsx)("div",{class:"blog-post-image",children:(0,s.jsx)(t.img,{alt:"PMDA++ logo",src:i(59085).A+"",width:"150",height:"150"})}),"\n",(0,s.jsxs)(t.p,{children:["I've recently been working with ",(0,s.jsx)(t.a,{href:"http://oss.sgi.com/projects/pcp/",children:"Performance Co-Pilot (PCP)"})," - specifically, creating\nsome PCP add-ons (known as PMDAs) for exposing custom application metrics to PCP."]}),"\n",(0,s.jsx)(t.p,{children:"While doing so, it became pretty clear to me, that although PCP's PMDA C API is very efficient, a good quality C++\nwrapper could significantly cut PMDA development and maintenance time (for people like me, at least), while also\nincreasing runtime safety by building-in all of the checks and balances that most PMDAs (should) perform, in a generic\nreusable manner."}),"\n",(0,s.jsx)(t.p,{children:"This sounded like a bit of fun, and suited my present hunger for some more advanced C++ API design work, so went about\nimplementing such a library."}),"\n",(0,s.jsx)(t.h2,{id:"pmda",children:"PMDA++"}),"\n",(0,s.jsxs)(t.p,{children:["To quote from the ",(0,s.jsx)(t.a,{href:"https://github.com/pcolby/pcp-pmda-cpp",children:"PMDA++ project page"}),":"]}),"\n",(0,s.jsxs)(t.blockquote,{children:["\n",(0,s.jsx)(t.p,{children:"PMDA++ is a header-only library that allows developers to write PMDAs in C++. It is a light C++ wrapper around PCP's\nC APIs."}),"\n"]}),"\n",(0,s.jsx)(t.p,{children:"That sums it up quite well."}),"\n",(0,s.jsxs)(t.p,{children:["If you're interesed, you can read more about the project, including basic code examples etc, on the\n",(0,s.jsx)(t.a,{href:"https://github.com/pcolby/pcp-pmda-cpp",children:"PMDA++ project page"}),", available on GitHub."]}),"\n",(0,s.jsx)(t.h2,{id:"qpid-pmda",children:"Qpid PMDA"}),"\n",(0,s.jsxs)(t.p,{children:["Additionally, I've ",(0,s.jsx)(t.a,{href:"https://github.com/pcolby/pcp-pmda-qpid",children:"made available"})," a basic PMDA for\n",(0,s.jsx)(t.a,{href:"http://qpid.apache.org/",children:"Apache Qpid"})," message brokers using the above PMDA++ library."]}),"\n",(0,s.jsx)(t.p,{children:"This PMDA subscribes to metrics data generated by Qpid messaging brokers, and exports them to the PCP monitoring system."}),"\n",(0,s.jsx)(t.h2,{id:"project-pages",children:"Project Pages"}),"\n",(0,s.jsxs)(t.p,{children:["The above projects can be found on ",(0,s.jsx)(t.a,{href:"https://github.com/",children:"GitHub"})," at the following locations:"]}),"\n",(0,s.jsxs)(t.ul,{children:["\n",(0,s.jsxs)(t.li,{children:["PMDA++ - ",(0,s.jsx)(t.a,{href:"https://github.com/pcolby/pcp-pmda-cpp",children:"https://github.com/pcolby/pcp-pmda-cpp"})]}),"\n",(0,s.jsxs)(t.li,{children:["Qpid PMDA - ",(0,s.jsx)(t.a,{href:"https://github.com/pcolby/pcp-pmda-qpid",children:"https://github.com/pcolby/pcp-pmda-qpid"})]}),"\n"]}),"\n",(0,s.jsx)(t.p,{children:"Feel free to have to browse the code, suggest improvements, report issues, clone / fork, create pull requests, whatever\nyou like."})]})}function d(e={}){const{wrapper:t}={...(0,p.R)(),...e.components};return t?(0,s.jsx)(t,{...e,children:(0,s.jsx)(l,{...e})}):l(e)}},59085:(e,t,i)=>{i.d(t,{A:()=>n});const n="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJYAAACWCAYAAAA8AXHiAAAABmJLR0QA/wD/AP+gvaeTAAAA
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