Much shorter replay time

[Sunil Nakum]

Hi,

I'm from testing domain and it is my first attempt to test performance of
3d product. As it's a propitiatory product, I wont be able to provide much
information on it though any questions are very welcomed.

The tracing and replay though works well, but the replaying time reduces to
almost 3rd of the recording time. Suppose, I record the graphics
manipulation for 30 seconds the resulting trace file gets replayed in about
10 seconds.

To understand how ApiTrace behaves I performed following test, while
tracing I tried halting graphics manipulation for few seconds. The
resulting trace file when replayed does not show this halting effect for
appropriate time. So I'm thinking that ApiTrace sort of skips the time to
plot such frames (during which frames are not changing) and thus completes
replaying in much shorter time. Is that correct? Is is possible to have
exact same replay time as recorded while tracing?

The problem with this fast replaying is that it gives much higher FPS
number (because of much lesser time) as compared to the actual clock time.

Kindly ignore lack of terminologies in explaining it, as I'm not well
conversed with this technology.

Thanks,
Sunil
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