tip-bot for Peter Zijlstra <tipbot@xxxxxxxxx> writes: > + > + at = (struct pebs_record_nhm *)(unsigned long)ds->pebs_buffer_base; > + top = (struct pebs_record_nhm *)(unsigned long)ds->pebs_index; > > ds->pebs_index = ds->pebs_buffer_base; > > + n = (top - at) / x86_pmu.pebs_record_size; This adds a full slow division to the PEBS hot path. Does not seem like a improvement to me. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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