Benchmarking

[eluser]vmanohari[/eluser]
Hi,

I am using benchmarking tool to save the response time of my web pages in database.
I have a small question. elapsed_time("execution_starttime","execution_endtime");

Will this elapsed_time() function returns the response time in milliseconds?
If not in which time format it returns like in micro seconds,nano seconds or seconds.

Please help me.

One more thing, will this elapsed_time function return value be equal to yslow component response time of mozilla.How far we can rely that these two provide same response time

thanks
Manohari.V