perf
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Samples# dramatically decreases if preciseIP is non-zero.
https://github.com/acln0/perf/blob/6861f4b5b828ac9ec30ec0eddc8d4fef199a3299/perf.go#L1142
In the sampling mode, I found the number of samples is dramatically reduced if preciseIP =1,2,3 instead of 0. Did I miss sth important?
Missing samples can generally be explained by #23 -- for which there is a fix in #26. Please can you test #26 and report back?