CPU Profiling?

Dreadlorde · 07-13-07, 11:42 AM

What exactly is CPU profiling? I'm using performancefu for my memory usage and latency, and it has CPU profiling, but I don't know what it does

Thanks for any help.

MidgetMage55 · 07-13-07, 07:38 PM

So far as i know it tracks mods (if any) that take up cpu cycles. An example would be KTM.

**Seerah** · 07-13-07, 08:19 PM

I believe it shows how much of your CPU a mod is using up, as opposed to just how much kb/MB it's using. It has been noted before that when enabling CPU profiling, a little more usage is tacked on as the calculations are figured.

spiel2001 · 07-15-08, 10:13 AM

On the subject of CPU profiling, I am looking for a tool or tutorial on how to do in-depth profiling of my mod. I need to figure out where the bottlenecks are that are dropping the frame rate and I'm not at all clear on how to do that at the method level.

Can anyone point me to a tool or resource I can use to measure where in my mod the most CPU load is occurring? Or is this one of those things you just have to hammer out via brute force?

Slakah · 07-15-08, 10:25 AM

There is one method which I know of which is to stand facing a wall storing GetTime() before the code you want to be executed then after you minus that from the current GetTime().

Or if it's purely lua you can use a lua interpreter and use os.clock() comparing results before and after the code you which to track.

spiel2001 · 07-15-08, 10:34 AM

Originally Posted by Slakah

There is one method which I know of which is to stand facing a wall storing GetTime() before the code you want to be executed then after you minus that from the current GetTime().

Or if it's purely lua you can use a lua interpreter and use os.clock() comparing results before and after the code you which to track.

Yeah... I was kind of afraid of that.

The issue I'm facing is that when I join a raid, something in my mod is hammering the frame rate, but I'm not sure where it is occurring in the code and with the size of the mod, narrowing down where the performance hit is taking place is non-trivial. I was kind of hoping to find a way of profiling CPU usage by method (function) call.

I suppose worst case would be to build a table of my own and accumulate time or call counts.