My skylake (i3-6100U) system drops frames when watching x265 movies (in mpv and kodi), with all cores at 100% CPU. I've re-run through https://wiki.gentoo.org/wiki/Intel and tried changing from the intel driver to modsetting, and it appears to use less CPU for x264 at least. Still maxed out for x265 so I cant tell if there's a difference for that.
I'm going through the USE flags for kodi, mpv and ffmpeg, which flags are the most important? Is there some way to run a simple movie playback benchmark to assess the impact of changes? Current settings; CPU_FLAGS_X86="aes avx avx2 fma3 mmx mmxext sse sse2 sse3 sse4_1 sse4_2 ssse3 -3dnow -3dnowext -fma4 -xop" ffmpeg USE: X alsa bzip2 encode gpl hardcoded-tables iconv libdrm mp3 network opengl openssl opus postproc pulseaudio sdl svg threads truetype vaapi vorbis x264 xcb xvid zlib (-altivec) -amr -amrenc (-appkit) -bluray -bs2b -cdio -chromaprint -chromium -codec2 -cpudetection -debug -doc -fdk -flite -fontconfig -frei0r -fribidi -gcrypt -gme -gmp -gnutls -gsm -iec61883 -ieee1394 -jack -jpeg2k -kvazaar -ladspa -libaom -libass -libcaca -libilbc -libressl -librtmp -libsoxr -libv4l -libxml2 -lv2 -lzma (-mipsdspr1) (-mipsdspr2) (-mipsfpu) (-mmal) -modplug -openal -opencl -openh264 -oss -pic -rubberband -samba -snappy -speex -srt -ssh -static-libs -test -theora -twolame -v4l -vdpau -vpx -wavpack -webp -x265 -zeromq -zimg -zvbi mpv USE: X alsa cdda cli dvd egl iconv jpeg lcms libass lua luajit opengl pulseaudio uchardet vaapi xv zlib (-aqua) -archive -bluray (-coreaudio) -cplugins -cuda -doc -drm -dvb -gbm -jack -javascript -libcaca -libmpv -openal -oss (-raspberry-pi) -rubberband -samba -sdl (-selinux) -test -tools -v4l -vdpau -vulkan -wayland -zsh-completion kodi USE: X alsa bluetooth css dbus dvd gles lcms opengl pulseaudio (system-ffmpeg) systemd udev udisks upower vaapi xslt -airplay -bluray -caps -cec -gbm -libressl -libusb -lirc -mariadb -mysql -nfs -samba -test -upnp -vdpau -wayland -webserver -zeroconf
