Date: Sun, 9 Apr 2023 15:10:25 -0700 From: Kevin Oberman <rkoberman@gmail.com> To: Jan Beich <jbeich@freebsd.org> Cc: multimedia@freebsd.org Subject: Re: Poor performance with Alder Lake graphics (ThinkPad T16) Message-ID: <CAN6yY1vMYkZ9DyijgOv6oBXhdTZyP3cz9gp=f30rqrr-yrOAPg@mail.gmail.com> In-Reply-To: <y1n3-4lhk-wny@FreeBSD.org> References: <CAN6yY1uvk5QdAcfnqoUVDH-sO6t9sJ4OWCBjB2pQee%2B8MqDCPQ@mail.gmail.com> <bkk6-5itr-wny@FreeBSD.org> <CAN6yY1vAvV4nWh91XtP3hrhPoDHcbyWgxOpWYUhVJEaO7rNBAQ@mail.gmail.com> <y1n3-4lhk-wny@FreeBSD.org>
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--00000000000072746c05f8ee8724 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, Apr 7, 2023 at 11:05=E2=80=AFAM Jan Beich <jbeich@freebsd.org> wrot= e: > Kevin Oberman <rkoberman@gmail.com> writes: > > >> Looks like OpenGL acceleration failed under Xorg for some reason. > >> Maybe caused by https://github.com/freebsd/drm-kmod/issues/175 > > > > Nope. glxinfo looks fine. > > glxinfo is X11-specific where "direct rendering" is often misleading. > Indirect GLX hasn't been used by default for >10 years. > > See also https://gitlab.freedesktop.org/mesa/mesa/-/commit/08bc3d175069 > https://gitlab.freedesktop.org/xorg/xserver/-/commit/d0da0e9c3bb= 8 > > > Can't believe that this graphics is MUCH worse than my 12 year old Ivy > Lake > > system. > > On my hardware Xorg is 20% slower, see https://reviews.freebsd.org/P501 > This is *without* TearFree and X11 compositor (e.g., picom). > Just tried an obvious tool: > xdriinfo Screen 0: swrast Does not look like much support, either by misconfiguration or lack of support for Alder Lake graphics. I would think that software rasterization, alone, is really going to slow things down. I assume it means no OpenGL/Mesa. --=20 Kevin Oberman, Part time kid herder and retired Network Engineer E-mail: rkoberman@gmail.com PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683 --00000000000072746c05f8ee8724 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon= t-family:tahoma,sans-serif;font-size:small">On Fri, Apr 7, 2023 at 11:05=E2= =80=AFAM Jan Beich <<a href=3D"mailto:jbeich@freebsd.org">jbeich@freebsd= .org</a>> wrote:</div></div><div class=3D"gmail_quote"><blockquote class= =3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg= b(204,204,204);padding-left:1ex">Kevin Oberman <<a href=3D"mailto:rkober= man@gmail.com" target=3D"_blank">rkoberman@gmail.com</a>> writes:<br> <br> >> Looks like OpenGL acceleration failed under Xorg for some reason.<= br> >> Maybe caused by <a href=3D"https://github.com/freebsd/drm-kmod/iss= ues/175" rel=3D"noreferrer" target=3D"_blank">https://github.com/freebsd/dr= m-kmod/issues/175</a><br> ><br> > Nope. glxinfo looks fine.<br> <br> glxinfo is X11-specific where "direct rendering" is often mislead= ing.<br> Indirect GLX hasn't been used by default for >10 years.<br> <br> See also <a href=3D"https://gitlab.freedesktop.org/mesa/mesa/-/commit/08bc3= d175069" rel=3D"noreferrer" target=3D"_blank">https://gitlab.freedesktop.or= g/mesa/mesa/-/commit/08bc3d175069</a><br> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://gitlab.freedesktop.org= /xorg/xserver/-/commit/d0da0e9c3bb8" rel=3D"noreferrer" target=3D"_blank">h= ttps://gitlab.freedesktop.org/xorg/xserver/-/commit/d0da0e9c3bb8</a><br> <br> > Can't believe that this graphics is MUCH worse than my 12 year old= Ivy Lake<br> > system.<br> <br> On my hardware Xorg is 20% slower, see <a href=3D"https://reviews.freebsd.o= rg/P501" rel=3D"noreferrer" target=3D"_blank">https://reviews.freebsd.org/P= 501</a><br> This is *without* TearFree and X11 compositor (e.g., picom).<br></blockquot= e><div><br></div><div style=3D"font-family:tahoma,sans-serif;font-size:smal= l" class=3D"gmail_default">Just tried an obvious tool:</div><div style=3D"f= ont-family:tahoma,sans-serif;font-size:small" class=3D"gmail_default">> = xdriinfo <br>Screen 0: swrast</div><div style=3D"font-family:tahoma,sans-se= rif;font-size:small" class=3D"gmail_default"><br></div><div style=3D"font-f= amily:tahoma,sans-serif;font-size:small" class=3D"gmail_default">Does not l= ook like much support, either by misconfiguration or lack of support for Al= der Lake graphics. I would think that software rasterization, alone, is rea= lly going to slow things down. I assume it means no OpenGL/Mesa.<br></div><= /div><br clear=3D"all"><br><span class=3D"gmail_signature_prefix">-- </span= ><br><div dir=3D"ltr" class=3D"gmail_signature"><div dir=3D"ltr"><div><div = dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr">Kevin Oberman, Part= time kid herder and retired Network Engineer<br>E-mail: <a href=3D"mailto:= rkoberman@gmail.com" target=3D"_blank">rkoberman@gmail.com</a><br></div><di= v>PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683</div></div></di= v></div></div></div></div></div></div> --00000000000072746c05f8ee8724--
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