Frank Somers

As per https://github.com/iovisor/bcc/pull/997 but for the Go API. In bcc/perf.go, a page count parameter can't be supplied; it uses an fixed constant size. ``` const BPF_PERF_READER_PAGE_CNT = 8 ... func...

Please enable devs using opencensus tracing to supply the start and end times for spans themselves to override the (current default) of capturing the system time when the span is...

SQLMode should be int64 or uint64; similarly for lengthAndDecimal fields

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## Bug Report In `pingcap/parser/mysql/const.go`, the type: ``` type SQLMode int ``` but it has too many bit definitions to fit in 32 bits. It should be `int64` or `uint64`...