Add perf_event read value diff function, reset as optional on enable, update AMD Events for L2 misses

facebookincubator / dynolog

Dynolog is a telemetry daemon for performance monitoring and tracing. It exports metrics from different components in the system like the linux kernel, CPU, disks, Intel PT, GPUs etc. Dynolog also integrates with pytorch and can trigger traces for distributed training applications.

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Add perf_event read value diff function, reset as optional on enable, update AMD Events for L2 misses #134

Closed briancoutinho closed 1 year ago

briancoutinho commented 1 year ago

Summary:

Updates to hbt perf_events

Add a diff() function to Read value datastructure, to find difference of two reads from perf_event.
enabling perf_event counters should not always reset the counter, making optional.
minor