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- Subject: Re: [ANN] LuaProfiler 2.0
- From: Chris Marrin <chris@...>
- Date: Wed, 15 Jun 2005 10:18:22 -0700
Rici Lake wrote:
On 15-Jun-05, at 10:39 AM, Diego Nehab wrote:
Hi,
Just to toss this out:
http://www.virtualdub.org/blog/pivot/entry.php?id=53
Are you using D3D, or something else that plays with the FPUCW?
This is amazing... thanks for the link. I *am* using D3D, and although I
don't plan to run my app for more than a few minutes, someone else might.
It is amazing... the things that happen on a Windows platform :)
Single-precision is going to give you microsecond precision up to 16
seconds and millisecond precision up to about four hours; that might be
enough, but it seems unnecessary. (Also I suspect that it is not
relevant how long the application has run, but rather how long it has
been since the machine has rebooted, but I really know zip about Windows
so I could be wrong.)
Yes, the value in the counter is from when the CPU started. I used the
trick of subtracting off the value of the counter when the CPU started.
But even with this, 4 hours to millisecond resolution is not acceptable
in our app!
--
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"As a general rule,don't solve puzzles that open portals to Hell"'