[PATCHv2 0/4] perf stat: Enable group read of counters

hi, sending changes to enable group read of perf counters for perf stat command. It allows us to read whole group of counters within single read syscall. v2 changes: - fixed release segfault reported by Arnaldo - rebased to latest Arnaldo's perf/core - patch 1 already merged in Also

[PATCHv2 0/4] perf stat: Enable group read of counters

hi, sending changes to enable group read of perf counters for perf stat command. It allows us to read whole group of counters within single read syscall. v2 changes: - fixed release segfault reported by Arnaldo - rebased to latest Arnaldo's perf/core - patch 1 already merged in Also