TLB_miss, TLB_hit and time in profiler question about profiler

Accelerated Computing CUDA CUDA Programming and Performance
1

Hello!

I’m using profiler with CUDA 2.3 driver and got some values in “tlb_hit” and “tlb_miss” column. Can’t find in documentation what does it mean exactly for CUDA device. Is it a bad sign that “tlb_miss” is not 0 or it’s a usual case when device should update pages in cache and the only problem is a waiting time?

Another question: what a time unit the profiler uses in “GPU time” and “CPU time” columns ?

Thanks in advance.

2

Don’t know about the first question.

The time unit is microseconds (10^-6s).

3

Thank you.