Seth Spitzer wrote:
>
> As you know, a lot of the UI for Mozilla is written in JS.
>
> When using quantify, I frequently end up dead ending in js_Interpret and
> and js_Invoke, which I assume means I'm back in my JS doing something.
>
> Is there a way to get the JS code to tell how many times I'm calling
> each JS function, and even better, how long I spend in that function?
>
> To be clear, I don't think the performance problem is in the js engine,
> I think it is in the mailnews JS.
>
> I could use that information to find performance problems in our JS.
> I've found a few (by hand) but it would better to have numbers to know
> where to look.
>
> -Seth
See Syd's JS Profiler posting:
news://news.mozilla.org/3978C430.6AA77AA5%40netscape.com
It works on windows too, but you need to explicitly #define
XPC_TOOLS_SUPPORT (uncomment the line in xpcprivate.h). I have
not messed with this for a while, so there is potential for bit
rot. Feel free to improve it!
John.
