On Tue, Sep 11, 2012 at 6:39 PM, Nicolas Chambrier <naho...@gmail.com> wrote: > Hello, > > I'm desperately trying to profile my application, like I used to do with > other languages where I could output some file I could pass to kcachegrind > which would show me when and where the runtime executed my code. > > I'm running Ubuntu or Debian VM, whatever I've tried several methods: > > Using dtrace on SmartOS: OK I can run dtrace, but I'm absolutely lost on > SmartOS and I need many bricks like Redis and MongoDB I'm not sure how to > install properly (I've compiled everything, which was a pita). Plus I'm not > a sysadmin, which makes me waste ages each time I need to configure > anything. Not forgetting the most recent provided zone (node-1.3.3) includes > node v0.6.8. Dafuq ? > Using node --prof seemed very promising: simple, everything is embedded, > cool :) I can generate a v8.log, OK. But then when I run > "deps/v8/tools/linux-tick-processor" on it, I get no output, just an exit > code 126. No idea what it means, I couldn't find information about this :( > Using valgrind I can output a callgrind file I can then use with > kcachegrind. It's cool and I get real values, I can practically see the call > chain, but I can't see my real function names. Instead I get some > hexadecimal names, v8:: and node:: internals. That makes it quite useless > for me :( > nodetime is great, but I'd really like a tool that doesn't rely on external > service. Even if I finally stick with this solution, I need to have an > alternative. > > > Does someone know where error 126 comes from in linux-tick-processor ? > > Does what I'm looking for only exist: a profiler that would output stack and > durations with the actual function names ? And easy to use on Linux x] > > > Thanks a lot for all the information you can provide! I really want to get > through that this time ;)
Fedor has a callgrind script here[1]. Can you `npm install profiler` and check if nprof parses your v8.log file? If not, can you open a node-profiler issue? [1] https://github.com/indutny/callgrind.js -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
