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Frame rate in Streamline

JPJ

Hi guys

I'm getting some frame rate values (in a Samsung S10e - G970F) I can't really explain in Streamline, so I was wondering if you could clarify this. The Frame Rate counter seems to be based on EGLContext, so my assumption is that it's simply measuring EGLSwalBuffers times (please clarify/correct me). However, I'd expect this to be locked to the HW v-sync to I'm surprised to see some values going "all the way up" to 63 FPS. Would you be able to elaborate a bit on this?

A second question also related with frame rate (in general) but on an A202F. I noticed that when I start capture the frame rate I get logged on screen (by our internal logger) drops "considerably" during the capture (around 10-15% in high 50s). Having said this, it is consistent during capture (our logger vs Streamline's). Is this related with how "heavy" the interceptor library is? If so, any tips on how to reduce this? I tried the following Capture and Analysis options:

  • Reducing the number of counters to roughly a dozen (the default I get for the A20)
  • All sampling rate modes (down to none)
  • Buffer modes
  • Disabled call stack unwinding and Process Extra Debug information disabled (probably not relevant though)

Any help would be great,

Cheers