gistfile1.txt

➜  node-dtrace-provider-issue-90 ls             
aside-gc.js  dtrace-gc.js node_modules package.json
➜  node-dtrace-provider-issue-90 ls -l node_modules 
total 8
lrwxr-xr-x  1 JulienGilli  staff  58 Jan 26 18:15 dtrace-provider -> ../../../../.nvm/v0.10.40/lib/node_modules/dtrace-provider
➜  node-dtrace-provider-issue-90 ls node_modules/dtrace-provider/build 
DTraceProviderBindings.target.mk Makefile                         config.gypi                      libusdt.target.mk
Debug                            binding.Makefile                 gyp-mac-tool
➜  node-dtrace-provider-issue-90 cat aside-gc.js 
var dtrace = require('./dtrace-gc');

var a = [];

for (var j = 0; j < 500; j++) {
    dtrace.foo(j);
}

global.gc();

setInterval(function () {
    for (var i = 0; i < 1000000; i++) {
        a.push({ n: i, c: i * 2 });
    }
    global.gc();
    a.shift();
    console.log('round done');
}, 1000);%                                                                                                                                                                                                  ➜  node-dtrace-provider-issue-90 cat dtrace-gc.js 
var d = require('dtrace-provider');
console.log('d:', d);
function foo(n) {
    var dtp = d.createDTraceProvider('gctest');
    var p1 = dtp.addProbe('probe' + n, 'int', 'int');

    dtp.enable();
}

module.exports = { foo: foo };
➜  node-dtrace-provider-issue-90 node -p 'process.versions'
{ http_parser: '1.0',
  node: '0.10.40',
  v8: '3.14.5.9',
  ares: '1.9.0-DEV',
  uv: '0.10.36',
  zlib: '1.2.8',
  modules: '11',
  openssl: '1.0.1p' }
➜  node-dtrace-provider-issue-90 lldb node
(lldb) target create "node"
Current executable set to 'node' (x86_64).
(lldb) b DTraceProvider::~DTraceProvider                                                                                                                                                                    Breakpoint 1: no locations (pending).
WARNING:  Unable to resolve breakpoint to any actual locations.
(lldb) b DTraceProbe::~DTraceProbe                                                                                                                                                                          Breakpoint 2: no locations (pending).
WARNING:  Unable to resolve breakpoint to any actual locations.
(lldb) r aside-gc.js
Process 19328 launched: '/Users/JulienGilli/.nvm/v0.10.40/bin/node' (x86_64)
{ [Error: Cannot find module './build/Release/DTraceProviderBindings'] code: 'MODULE_NOT_FOUND' }
{ [Error: Cannot find module './build/default/DTraceProviderBindings'] code: 'MODULE_NOT_FOUND' }
3 locations added to breakpoint 1
3 locations added to breakpoint 2
d: { DTraceProvider: [Function: DTraceProvider],
  createDTraceProvider: [Function] }
Process 19328 stopped
* thread #1: tid = 0xed9bd, 0x0000000100f88ed0 DTraceProviderBindings.node`node::DTraceProvider::~DTraceProvider(this=0x0000000100d010c0) + 16 at dtrace_provider.cc:14, queue = 'com.apple.main-thread', stop reason = breakpoint 1.3
    frame #0: 0x0000000100f88ed0 DTraceProviderBindings.node`node::DTraceProvider::~DTraceProvider(this=0x0000000100d010c0) + 16 at dtrace_provider.cc:14
   11  	    provider = NULL;
   12  	  }
   13  	
-> 14  	  DTraceProvider::~DTraceProvider() {
   15  	    usdt_provider_disable(provider);
   16  	    usdt_provider_free(provider);
   17  	  }
(lldb)