[srsran-users] Question about UE Tracing output

[08.chancy_fantasy at icloud.com]

Dear All,

I have two questions:

1. When I enable UE tracing, it generates a file named ue_tracing.log that contains the execution time of ue_stack_lte::run_tti_impl().

My question is whether this time represents the TOTAL processing time per subframe? Including the PHY layer processing?

My gut feeling is that it only represents the execution time of stack functions (MAC and above) but not the PHY. The reason for my hunch is that the numbers are usually in tens of microseconds which sounds too good to be true for performing all DL processing. (I am only doing max DL traffic for 75 PRBs).

2. Is there a way to see how much time it takes to process one subframe? The reason for my query is that I am seeing the following warning in the main log and at the moment I have no clue how to go about debugging or identifying where the bottleneck might be:

[STCK   ] [W] Detected slow task processing (sync_queue_len=7). 

Many Thanks,
.Nemo


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