16.07.2014 19:47, David Henningsson wrote: > So, given this the only place where extra 7.1 profiles actually take > some time to consider is this one (NVIDIA HDMI). Where adding 7.1 > profiles to all four devices would probably lead to an additional > startup delay of 100 - 150 ms. > > All other places we probably get stopped in userspace, which means less > than a ms delay. I have updated the patch, and found that around 100 ms get wasted reliably for something that is neither mapping_open_pcm() nor mapping_paths_probe() before probing surround21 on the USB headphones. I do not understand this phenomenon (might be a buggy patch due to the noise here). The new timing patch is attached, as well as the gzipped very-very-verbose log from that PC. -- Alexander E. Patrakov -------------- next part -------------- A non-text attachment was scrubbed... Name: v2-0001-alsa-Report-profile-probing-timings.patch Type: text/x-patch Size: 4104 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20140716/4964f938/attachment-0002.bin> -------------- next part -------------- A non-text attachment was scrubbed... Name: work-pc.log.gz Type: application/gzip Size: 25338 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20140716/4964f938/attachment-0003.bin>
