On Thu, Apr 16, 2015 at 09:55:43AM -0700, Dave Hansen wrote: > On 04/16/2015 03:22 AM, Mel Gorman wrote: > > It is easy to trace when an IPI is received to flush a TLB but harder to > > detect what event sent it. This patch makes it easy to identify the source > > of IPIs being transmitted for TLB flushes on x86. > > Looks fine to me. I think I even thought about adding this but didn't > see an immediate need for it. I guess this does let you see how many > IPIs are sent vs. received. >
It would but that's not why I wanted it. I wanted a stack track of who was sending the IPI and I can't get that on the receive side. I could have used perf probe and some hackery but this seemed useful in itself. > Reviewed-by: Dave Hansen <[email protected]> Thanks. -- Mel Gorman SUSE Labs -- 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/
