Quoting Lionel Landwerlin (2019-02-18 18:35:28) > We're about to introduce an options to open the perf stream, giving > the user ability to configure how often it wants the kernel to poll > the OA registers for available data. > > Right now the workaround against the OA tail pointer race condition > requires at least twice the internal kernel polling timer to make any > data available.
I think this code is bogus. I do not think there is an aging problem on hsw+, the only cause of zeroes being written that I've found is from changing configs. -Chris _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
