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b0f9072830
Currently, when processing the output of 'simpleperf stat', wa does not
skip the header and tries to process part of it as a number, leading
to type errors. This change skips the header (line starting with '#').
Furthermore, some events (e.g. cpu-clock or task-clock) include "(ms)"
in their count value and are floats instead of integers. Because of
this, when either of those is included, processing metrics fails due to
assuming every metric is an integer. Then another error happens when the
code tries to split the line on '(' assuming that there's only one set
of those around the percentage.
This change removes "(ms)" from the line
before it's processed and properly determines whether 'count' is an
integer or a float before attempting to convert it.