There could be something amiss on the User space side, but this is a very sporadic issue. It mainly comes to the fore, when some huge buffers (30 MB) are being processed.
Best Regards Akash -----Original Message----- From: Chris Wilson [mailto:ch...@chris-wilson.co.uk] Sent: Sunday, May 04, 2014 5:12 PM To: Goel, Akash Cc: intel-gfx@lists.freedesktop.org; Gupta, Sourab Subject: Re: [Intel-gfx] [RFC 0/2] Reduce the time for which 'struct_mutex' is held On Sun, May 04, 2014 at 04:48:23PM +0530, akash.g...@intel.com wrote: > From: Akash Goel <akash.g...@intel.com> > > We are trying to reduce the time for which the global 'struct_mutex' > is locked. Execbuffer ioctl is one place where it is generally held > for the longest time. And sometimes because of this occasional > glitches/flickers are being observed in 60 fps playback (due to miss > of V-blank intervals) as page flip call is getting delayed because the > 'struct_mutex' is already locked. Once again, both of these make me wonder just what you are doing so badly wrong in userspace. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
