Re: [Mesa-dev] [PATCH 06/10] i965: perf: keep on reading reports until delimiting timestamp

2017-06-15 Thread Lionel Landwerlin
On 15/06/17 08:51, Kenneth Graunke wrote: On Wednesday, June 14, 2017 5:38:31 PM PDT Lionel Landwerlin wrote: Due to an underlying hardware race condition, we have no guarantee that all the reports coming from the OA buffer related to the workload we're trying to measure have landed to memory by

Re: [Mesa-dev] [PATCH 06/10] i965: perf: keep on reading reports until delimiting timestamp

2017-06-15 Thread Kenneth Graunke
On Wednesday, June 14, 2017 5:38:31 PM PDT Lionel Landwerlin wrote: > Due to an underlying hardware race condition, we have no guarantee > that all the reports coming from the OA buffer related to the workload > we're trying to measure have landed to memory by the time all the work > submitted has

[Mesa-dev] [PATCH 06/10] i965: perf: keep on reading reports until delimiting timestamp

2017-06-14 Thread Lionel Landwerlin
Due to an underlying hardware race condition, we have no guarantee that all the reports coming from the OA buffer related to the workload we're trying to measure have landed to memory by the time all the work submitted has completed. That means we need to keep on reading the OA stream until we read