And what about trace? Cheers, Fedor.
On Wed, Sep 19, 2012 at 7:01 PM, Michael <[email protected]> wrote: > 0.8.9 on linux build from source. > > Am Dienstag, 18. September 2012 13:53:51 UTC+2 schrieb Fedor Indutny: >> >> And btw, what node.js version are you using? >> >> >> On Tue, Sep 18, 2012 at 3:37 PM, Ben Noordhuis <[email protected]>wrote: >> >>> On Tue, Sep 18, 2012 at 1:27 PM, Michael <[email protected]> wrote: >>> > hi, >>> > >>> > I am playing a bit with JMeter to produce some load on my Node.js >>> system >>> > (HTTP requests). I recognized, that under heavy load my master node >>> process >>> > in the cluster is using 100% CPU and will never stop doing so even if >>> no >>> > requests are arriving.I attached a screenshot... This was the >>> situation some >>> > minutes after the load. The whole system was relaxed again expect the >>> master >>> > in the cluster. >>> > >>> > My cluster is build like the example here >>> > http://nodejs.org/api/cluster.**html#cluster_cluster<http://nodejs.org/api/cluster.html#cluster_cluster>So >>> > there is nothing than >>> > master.fork() in master's code. >>> > >>> > Any ideas what makes the master process busy? The application still >>> respond >>> > very fast in the 100% CPU master situation. >>> > >>> > Regards, >>> > >>> > Michael >>> >>> Trace the program with strace on Linux or truss / dtruss if you're on >>> a BSD or Solaris system, that should give you a hint what the process >>> is doing. In case of doubt, post the trace output. >>> >>> Another option is to turn on profiling with --prof and inspect the >>> call graph. `npm install profiler` will give you a nprof tool that >>> parses the v8.log into human-readable form. >>> >>> -- >>> Job Board: http://jobs.nodejs.org/ >>> Posting guidelines: https://github.com/joyent/**node/wiki/Mailing-List-* >>> *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 [email protected] >>> >>> To unsubscribe from this group, send email to >>> nodejs+un...@**googlegroups.com >>> >>> For more options, visit this group at >>> http://groups.google.com/**group/nodejs?hl=en?hl=en<http://groups.google.com/group/nodejs?hl=en?hl=en> >>> >> >> -- 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
