run TLB bench on RTX2080Ti

[qqwert0]

Hello，I run the TLB-bench on RTX2080Ti. The result is not a relatively smooth curve, but a constantly fluctuating curve.
I clone you git and follow the README. And I change the data size and stride, but the curves are always fluctuating. Do you know why? How can I test the TLB size of RTX2080Ti? thank you.

[tomas-karnagel]

Hi, thanks a lot for using our code. The work is 4 years old and I can't remember everything exactly without looking into the details.
But here are some pointers that might help.

• We profiled the K80 (Kepler architecture) and P100 (Pascal architecture) and there it was possible to see the TLB boundaries clearly. However, we also tested a GPU with Maxwell architecture and there it was hard to see anything. So my guess is that Maxwell was completely different to the other two. Your GPU has the Turing architecture with a newer GDDR memory. So basically every architecture might be different and it can be hard to see these TLB boundaries.
• For the P100, there was a small boundary (L1) at 32 MB with a 8 cycle difference. With newer architectures this is likely to be the same or higher MB with less cycles. Maybe in your last image, it looks like that there is a shift at 32 MB. If you change your y-axis of the image to 230 to 250 it might become more visible.
• For the P100, the big shift (L2) (110 cycles) came at 2 GB. Maybe start looking in this area first, because the larger shift might be more visible.
  I hope this helps.
  Good luck.
  --
  Tomas