On Tue, May 26, 2015 at 04:33:42PM -0700, Andi Kleen wrote: > Peter Zijlstra <pet...@infradead.org> writes: > > + */ > > + if (is_ht_workaround_enabled() && !cpuc->is_fake && > > Could this function also check if at least one leaking event is > scheduled somewhere? (e.g. from a global count)
You truncated one line too many: + if (is_ht_workaround_enabled() && !cpuc->is_fake && + READ_ONCE(cpuc->excl_cntrs->exclusive_present)) + gpmax /= 2; Guess what that READ_ONCE() does? It checks if there's one such leaky event on the current core. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
