OSX Lion
On Friday, March 16, 2012 5:42:19 PM UTC-4, Ben Noordhuis wrote:
>
> On Fri, Mar 16, 2012 at 19:57, Patrick Quinn wrote:
> > I've been profiling my code and the most expensive function reported
> > is the C++ function _chmod. It appears about 4 times as often as my
> > most expensive Javascript function.
> >
> > My program doesn't use the filesystem. It's very simple. It prints
> > one line to the console and only has 2 "require" calls that aren't my
> > code: underscore, and EventEmitter2 (require("events") exhibits the
> > same problem).
> >
> > I've done some grepping through node and its dependencies, and I'm
> > scratching my head. _chmod is apparently called by many functions and
> > I don't see anything in common between them.
> >
> > Is this an internal node.js thing? Is it anything to be concerned
> > about or is there anything I can do to prevent it? Any insight would
> > be greatly appreciated.
> >
> > Thanks!
> >
> > Example:
> >
> > 499 8.8% _chmod
> > 69 13.8% LazyCompile: *Player.draw /my/project/path/
> > player.js:192
> > 38 55.1% Function: Player.doCleanup /my/project/path/
> > player.js:119
> > 36 94.7% LazyCompile: *Player.doPlay /my/project/path/
> > player.js:99
> > 36 100.0% LazyCompile: *Player.onPlayChosen /my/project/
> > path/player.js:168
> > 36 100.0% LazyCompile: *EventEmitter.emit /my/project/
> > path/node_modules/eventemitter2/lib/eventemitter2.js:242
> >
> > Player.draw /my/project/path/player.js:192 is as follows
> >
> > Player.prototype.draw = function(n) {
> > var card, drawn, _i, _len;
> > drawn = this.take(n);
> > for (_i = 0, _len = drawn.length; _i < _len; _i++) {
> > card = drawn[_i];
> > this.hand[card.id] = card;
> > }
> > return drawn;
> > };
> >
> > this.take(n) returns an array. this.hand is an object initialized
> > using curly brackets. card.id is an integer.
>
> On what platform is this? _chmod looks like a function from the Windows
> CRT.
>
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