Messages in this thread | | | Date | Thu, 31 Jul 2014 15:31:35 +0800 | From | "Yan, Zheng" <> | Subject | Re: [PATCH v3 6/9] perf, x86: handle multiple records in PEBS buffer |
| |
On 07/28/2014 02:52 PM, Peter Zijlstra wrote: > On Mon, Jul 28, 2014 at 10:24:30AM +0800, Yan, Zheng wrote: > >> I don't think this method works for interrupt threshold > 1 case. When collision >> happens, the hardware only create one PEBS record. The status in next record has >> nothing to do with the collision record. > > Andi previously stated that the hardware will always generate a record > for each event: > > http://marc.info/?l=linux-kernel&m=140129731708247 > > Please lock yourselves in room and do not come out until you can give a > straight and coherent answer. >
Andi,
please confirm this
Regards Yan, Zheng
| |