On 11/24/15 8:40 AM, Arnaldo Carvalho de Melo wrote:
perf-record without his patch? yes, but with his patch it does:__cmd_record() for (;;) record__mmap_read_all() record__write() perf_memory__write() event = (union perf_event *)(memory->start + memory->head + skip); if (event->header.type != PERF_RECORD_SAMPLE) { if (buf_to_file(rec, memory->start, memory->size, } I almost thought that I had been fooled by the difficulty to follow his patch and was forgetting that 'perf record' doesn't processes events, and hasn't done so for a very good reason: to reduce its impact on the observed workload, but that ain't so, no?
exactly. And I missed the above. Thanks for pointing that out. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
