RE: clock() function note ...

["Luiz Carlos Silveira" <luiz@...>]

The Lua clock() function measures the CPU time given to the process, so if your program occupies 1% of the CPU on the average,
clock() will measure 1/100 of the real elapsed time. If your process occupies 100% of the CPU (almost impossible with
multiprogramming operating systems) you would get the results you expected.

How to get the real time in Lua? I don't know...
if you just want a precision around seconds, you can use date()

-----Original Message-----
From: owner-lua-l@tecgraf.puc-rio.br [mailto:owner-lua-l@tecgraf.puc-rio.br]On Behalf Of Alex Bilyk
Sent: Saturday, June 08, 2002 5:33 AM
To: Multiple recipients of list
Subject: clock() function note ...


I have been doing some perfomance tests for LUA-based code and fould that standard LUA *clock()* function yields just about exactly
half the time it is supposed to. I have AMD 1.3G system running Win2K. Granted, I measured it against the standard Win2K clock
application (it would count one day for two, and it does not, if it were at fault). Has anyubody experienced this problem?

Thanks,
AB