I've been trying to use Firebug's profiler to better understand the source of some JavaScript performance issues we are seeing, but I'm a little confused by the output.
When I profile some code the profiler reports Profile (464.323 ms, 26,412 calls). I suspect that the 464.323 ms is the sum of the execution time for those 26,412 calls.
However, when I drill down into the detailed results I see individual results with an average execution time greater than 464.323 ms, e.g. the result with the highest average time reports the following details:
Calls: **1**Percent: **0%**Own Time: **0.006 ms**Time: **783.506 ms**Avg: **783.506 ms**Min: **783.506 ms**Max: **783.506 ms**Another result reports:
Calls: **4**Percent: **0.01%**Own Time: **0.032 ms**Time: **785.279 ms**Avg: **196.32 ms**Min: **0.012 ms**Max: **783.741 ms**Between these two results the sum of the Time results is a lot more than 464.323.
So, what do these various numbers mean? Which ones should I trust?