davglass / node-getrusage Goto Github PK

Hi, there was a bug in npm causing it to include dotfiles in ignored directories: https://github.com/isaacs/npm/issues/2144

As a result, the node-getrusage tarball currently in npm (http://registry.npmjs.org/getrusage/-/getrusage-0.3.0.tgz) includes the file build/.wafpickle-7, which causes the build to fail (because that pickle file caches paths on the packager's machine, e.g. '/Users/yui/src/node-getrusage/build').

Could you repackage node-getrusage using a recent version of npm so as to exclude the file build/.wafpickle-7?

I'm interested in a node.js module that does what this does, but is a bit higher level. I want to know when my application hits a "high water mark" that I can define in terms of percentage processor usage.

maybe the api looks like this:

var cpuUsage = require('cpu-usage');
cpuUsage.on('busy', function(stats) {
    logger.warn("process is overloaded, using " + stats.percentCPU + "% cpu\n"); 
}).on('normal', function(stats) {
    logger.info("process is back to normal, using " + stats.percentCPU + "% cpu\n"); 
});

maybe if you want to override the default (80%?) you can say:

cpuUsage.setHighWaterMark(90.0);

This suggests that upon registration for the event, the module would start polling getrusage() every second and fire events, and there are some implementation challenges (like not keeping the using process from exiting cleanly).

Is this within the scope of getrusage, or should it be a separate library?

Yesterday the node 0.10.0 was released and I was trying to update my mini project to 0.10.0.

I found that I was getting this error at require statement.

Error: Symbol getrusage_module not found.
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)

node-gyp clean
node-gyp configure
node-gyp build

doesn't help.

After updating to 0.10.0 I even removed node_modules from my project.

double getusertime(void) {
    struct timeval tim;
    struct rusage ru;

    getrusage(RUSAGE_SELF, &ru);

    tim = ru.ru_stime;
    double t=(double)tim.tv_sec + (double)tim.tv_usec / 1000000.0;
    tim=ru.ru_stime;        
    t+=(double)tim.tv_sec + (double)tim.tv_usec / 1000000.0;        
    return t;
}

shouldn't that be u time and not duplicated:

    tim = ru.ru_utime;
    double t=(double)tim.tv_sec + (double)tim.tv_usec / 1000000.0;
    return t;

Referred to:
http://pubs.opengroup.org/onlinepubs/009695399/basedefs/sys/resource.h.html
The <sys/resource.h> header shall define the rusage structure that includes at least the following members:
struct timeval ru_utime User time used.
struct timeval ru_stime System time used.