XvMC:Example CPU Savings

Outdated: XvMC support has been removed from the upcoming 0.25 release.

CPU	RAM	Video Card	Content	CPU w/XvMC	CPU w/o XvMC	XvMC Deinterlace	Non-XvMC Deinterlace	MythTV Version	Notes
C7 Esther 1.2 GHz (Via EN12000-EG fanless)	DDR2 512MB	Unichrome Pro IGP (CN700) TV encoder VT1625	SD (TV-Out: PAL, S-Video@1024x768, LCD-Out: VGA@1680x1050)	25%-30%	70-80%	bob 2x	Kernel ?	svn rev ?? don't remember (0.20 svn dev)	This is a combined Front/Back-end system. Stable, reliable and smooth playback with libviaXvMCPro from openchrome. Some prebuffering pauses when switching channels or OSD text, but not systematic (using realtime video thread capability).
C3 Samuel 2 600Mhz	256MB	Via CLE266 w/ VGA Out to 960x600 (ws-LCD)	SD	45%-50%	100%	bob	No	svn rev 10180	This is a combined Front/Back-end system. Stable, reliable and smooth playback with XvMC, unusable without.
AMD Athlon 800	768MB PC100	Nvidia Geforce4 MX440	SD	15%-20%	45-50%	Bob/Kernel	Kernel	0.18.1	A little jumpy for ~15 seconds after entering LiveTV/Recording, then smooth.
750mhz P3 w/256k cache	384M PC100	128M Nvidia 5200 AGP 2x w/S-video Out to CRT TV	SD	60%	75%	Bob 2x	Linear Blend	0.20 release	This is R5E50 KnoppMyth. SD Playback is smooth and reliable.
933mhz P3 w/256k cache	512M PC133	128M Nvidia 5200 AGP 4x w/VGA Out to 1280x1024 CRT	SD	32%	40-46%	NO	NO	0.19 SVN fixes rev 9591	SD Playback is smooth and reliable. Frontend is remote via 100BaseTX and complains of constant prebuffer pauses. Using nvidia driver version 8756 and OpenGL VSync. XV picture controls ON.
933mhz P3 w/256k cache	512M PC133	128M Nvidia 5200 AGP 4x w/VGA Out to 1280x1024 CRT	HD 1080i	100%	100%	NO	NO	0.19 SVN fixes rev 9591	This machine is too slow for 1080i, even with XvMC. 1080i is choppy and unwatchable. Frontend is remote via 100BaseTX and complains of constant prebuffer pauses. Using nvidia driver version 8756 and OpenGL VSync. XV picture controls ON.
AMD Duron(tm) 950	512MB	GeForce4 MX 440 AGP 8x	SD	12-14%	28-32%	No	No	0.19	Slackware 10.2 I needed to add a newer version of the X11-devel package to get the xvmc include files.
1 Ghz AMD TBird	256MB DDR	64MB GeForce4 MX 440	HD (1080i)	65-70%	100%	Bob	Bob	LFS & compiled .19 fixes branch	OSD is in B&W, but 1080 is smooth and watchable, with the occasional stutter when switching channels on live, or the OSD is on. Frontend still complains of the occasional prebuffer pause. Without XvMC, HD stutters a lot.
VIA C3 Nehemiah 1GHz				20%		Unknown	Unknown	Unknown	can hardly play mpeg2 without XvMC
Via C3 Nehemiah 1.33GHz	1GB	VIA CN400	SD	25%	90%	Bob	Unknown	0.18.2, 0.19
AMD Athlon XP 1600	1GB DDR	Nvidia 6800LE	SD	15%	25%	Unknown	Unknown	N/A, tested with MPlayer
AMD Athlon(tm) XP 1900+	512 MB	NV25 [GeForce4 Ti 4400]	SD	55%	44%	Bob	Kernel	0.19	Debian Unstable Nvidia 8178. Picture stuttered after 0.18.1 -> 0.19 upgrade, tried XvMC fixes picture, but uses more CPU (?) Using ChromaKey Hack with success. Prebuffer pause only at begining of watching TV.
2 Ghz Celeron	512MB DDR	128MB NVidia 6200 AGP 8X	HD (1080i)	65-70%	100%	Bob	Bob	FC4 & ATRPMS 0.18.1 / LFS & compiled .19 fixes branch	OSD is in B&W, but 1080 is smooth and watchable, with the occasional stutter when switching channels on live, or the OSD is on. Also had to turn on NvAGP to get XvMC working with this video card. Frontend still complains of the occasional prebuffer pause. Without XvMC, HD stutters a lot.
2 Ghz Celeron	512MB DDR	64MB GeForce4 MX 440	SD	12-14%	22-24%	Bob	Bob	ATRPMS 0.18.1	AverMedia M179 tuner card, NVidia driver 7676, OSD is B&W
Athlon XP 2000+	512MB PC2700	GeForce4 MX440	SD	13%-19%	25%-28%	NO	NO	0.18.1
Athlon XP 2000+	512MB PC2700	GeForce4 MX440	HD	52%-62%	99%+	NO	NO	0.18.1
Intel P4 2.26	512MB	GeForce 5200	1080i	50%	100%	Bob	Any	0.19	1080 unwatchable without XvMC. 720 and below are OK withouth XvMC
AMD Athlon XP 2400	512mb DDR 3200	Nvidia FX 6200	HD (1080i)	20-25%	80%	BOB	Unknown	0.18	of course XvMC still likes to lock on "prebuffer" a lot
AMD 2500+	1GB	FX5500 256MB	HD	50%	99%+	Unknown	Unknown	Unknown
AMD 2500+ OC'ed to 3200	512 MB@252 mHz	FX5200 128MB	HD	90+%	N/A	Linear	N/A	.2	bareley plays 1080i, and wont at all if i use anything other than linear deinterlacing. cant watch live tv. only prerecorded shows.
Sempron64 2500	256 MB PC 3200	FX 5200	HD	30%	90%	Bob	Bob	0.19	FC4 i386 build (still can't get x64 build to install properly). 1080 content unwatchable without XVMC, 720 / 480 content watchable w/o XVMC. With XVMC: 1080 watchable while also recording two additional 1080 channels.
P4 @ 2.67GHz	512 MB PC 3200	FX 5200	HD 1080i	45%	95%	Bob	Bob	0.19	FC3 ATRPMS NVidia 7676. Unwatchable without XVMC; slight, but occasionally noticable audio stutter with XVMC.
Athlon XP 2800+	512 MB 3200	GeForce4 MX440	SD	7%-8%	9%-10%	Bob	Bob	0.19	Gentoo kernel 2.6.15 with NVidia 7676 driver. Tried 8178 driver, but CPU usage went to 85%
2.93Ghz Celeron D	1Gb DDR 3200	128M Nvidia FX 5200 AGP 8x w/TV OUT to 800x600 SD TV	SD	8-12%	10-14%	NO	NO	0.19	SD Playback is smooth and reliable. No complaints!
2.93Ghz Celeron D	2Gb DDR 3200	256M Nvidia 6200 AGP 8x w/DVI Out to 1360x768 LCD	SD	14%	17%	NO	NO	0.19 SVN fixes rev 9591	OSD is in B&W, but SD is smooth and watchable, with a very brief stutter when switching channels on LiveTV. No prebuffer pauses. Without XvMC, SD playback is smooth. Using nvidia driver version 8756 and using OpenGL Vsync. Can't reliably run Bob deinterlace for unknown reasons. XV picture controls ON.
2.93Ghz Celeron D	2Gb DDR 3200	256M Nvidia 6200 AGP 8x w/DVI Out to 1360x768 LCD	HD 1080i	50%	100%	NO	NO	0.19 SVN fixes rev 9591	OSD is in B&W, but 1080i is smooth and watchable, with the occasional stutter when switching channels on LiveTV, or the OSD is on. Frontend still complains of the occasional prebuffer pause. Without XvMC, HD stutters a lot. Using nvidia driver version 8756 and using OpenGL Vsync. Can't reliably run Bob deinterlace for unknown reasons. XV picture controls ON.
Athlon 64 3200+	768MB PC2700	GeForce FX 5200	HD 720P	20%	51%	Bob	No	Pre 0.19 SVN	Running in 64 bit mode, with NVidia 7676 driver
Athlon 64 3200+	768MB PC2700	GeForce FX 5200	HD 1080i	42%	70%	Bob	No	Pre 0.19 SVN	Running in 64 bit mode, with NVidia 7676 driver
Athlon 3200+	512MB PC3200	GeForce FX 5500	HD 1080i	45%	100%	Bob	Bob	Pre 0.19 SVN (8922)	720p Playback with NVidia 7676 driver. Significant stuttering w/o XvMC.
Athlon 64 X2 3800+	512MB DDR400	GeForce 6150 on-board an Asus A8N-VM CSM	HD 1080i	20%	50%	Bob	Kernel	0.19	XvMC has some glitches. Perfect without XvMC.
Athlon 64 2400+	512MB DDR266	Nvidia FX5200 & Asus A7V-266EX	SD	20%	70%	Bob	Kernel	0.19 svn	Picture quality is flawless, no problems. Slight errors and pauses with HD material (CPU 100%)
AMD Sempron 3400+	768MB PC3200	Nvidia Geforce 6100 onboard (410)	HD 1080i	75%	100%	Linear	none	0.19.129	FC5, unwatchable without Xvmc, needs latest Nvidia drivers (8756) for onboard 6100.  %75 is just to play, takes another ~%10 to record the HD from the firewire on an LVM. OSD is in color, overlay causes slight audio corruption but goes away once the overlay stops.
AMD Athlon XP 3000+	512MB PC3200	Nvidia FX5200	HD 720p	~33%	~70%	Bob	Bob	svn 10469	As above, audio stutters when OSD is diplayed but otherwise smooth and nice looking. Using Chromakey hack for color OSD.
AMD Athlon XP-M 3000+ (2.2GHz)	768MB PC133	Nvidia 6200 128MB DDR	HD 1080i/720p	55/38%	100/90%	Bob	Bob	0.20 svn 11499	1080i: studders badly w/o XvMC. Minor tearing even with OpenGL sync. Displayed at 1080i w/o bob fails to consistently order interlaced fields correctly. 720p: perfect displayed at 720p w/ or w/o XvMC. Monitor: 1080i/720p/480p CRT.
AMD Athlon XP 3000+	512MB PC3200	Nvidia FX5200	HD 1080i	~70%	100%	Bob	Bob	svn 10469	Stuttering w/o XVMC, but with XVMC smooth and nice looking.
AMD Athlon XP 1600+	512MB	Nvidia FX5200 AGP	HD 1080i/HD 720p	~60-80%	100%	Onefield	Onefield	0.19-fixes 10686	Haven't tried Bob deint yet. HD stutters badly without XVMC, with XVMC 1080i plays back perfectly.
AMD Athlon XP 2500+	1GB	FX5200 256MB	HD	33.5%	67%+	Bob	Bob	0.19-fixes Knoppmyth R5C7	Using latest Nvidia drivers 1.0-8756
AMD Athlon XP 3200+	512MB PC3200	FX5500 256MB	HD 720p/1080i	30-40%	99%	Bob	No	0.19-fixes	Nvidia driver: 8774. B/W OSD w/ audio stuttering during OSD. Turning off "extra audio buffering" reduced audio buffer underruns. Not using NvAGP (enabling it made my CPU 90%+). Other than OSD problems, XvMC works great!
AMD 64 3500+ (2.2GHz)	1024MB DDR 400	nV 6600GT 256MB	SD	~24%	? (will check later)	Linear blend		0.20+SVN09-10-2006	nVidia drivers: 8774. The cpu is running at 1000MHz (cool 'n' quiet activated) during the whole time watching tv, so it is 24% @ 1000MHz. No audio buffer underruns with and without "extra audio buffering". I have to enable the "interleaved Normal" mode while watching tv to watch it perfectly. "Auto(E)" doesnt recognize the tv input as interleaved.
AMD Athlon XP 2500+	1024MB DDR 400	nV 6200 128MB	SD/HD			Bob	Bob	svn rev 11529	Have to disable OpenGL vsync to handle 60fps progressive or 30fps interlaced (w/ bob deinterlacing) content. OpenGL vsync works fine with 24/30fps playback. OpenGL vsync with 60fps playback causes stuttering w/ prebuffering pauses, but only when OSD is not displayed - seems like a bug?
P4-2.4GHz	512MB PC2700 DDR	NVidia 6200	HD	Never got working	30-70%	default	default	0.19, 0.20	Never got XvMXC to work - it dropped every 2nd frame. FC5, complied 0.19 and 0.20 from source with --enable-proc-opt. Makes a massive difference.
AMD Athlon 2800	512MB	Nvidia Geforce4 FX5200	HD	10%-15%	15-20%	Bob	Bob	0.20	Very smooth playback with XvMC. Stutters a little without XvMC. Didn't get Chromakey hack working. NOTE: I had 'Option "NvAGP" "3"' in my Xorg.conf, which caused the machine to crash when exiting from the EPG. (running Edgy Eft, on kernel 2.6.17-10-generic). Also had to set vsync to blank in nvidia-settings, for a smooth playback.
AMD Athlon 1800+ (1.5Ghz)	512MB	Nvidia 6600GT w/Component out	HD (1080i & 720p)	75%	100%	Bob	Bob	0.20	Without XvMC HD is choppy with audio out of sync (AC3 Pass-Through) runs at 100% CPU. With XvMC enabled 75% cpu usage and great quality. Test done with a HDHomeRun.
AMD Athlon XP 2600+	1024 MB	XFX 6600GT w/Component out dongle	HD 1080i/480p	50-60%		none	none	0.20	Using XvMC and Option "NVAGP" "2", without the NVAGP option, I got terrible tearing.
AMD Sempron 2400+ Thoroughbred 1.667GHz	512 MB	GeForce FX 5200 w/ S-video out	HD	50-80%	99%	Bob 2X	none	0.20	Knoppmyth R5E50, Used for recording HD and watching on my parents SDTV. Can't do live TV and the OSD is almost unusable. But with XvMC playback is smooth and watchable with only occasional hiccups.
AMD Athlon XP Barton 2.0GHz (512k L2)	512 MB PC2100 (266MHz), dual channel	NVidia GeForce 6200 AGP	HD	~50%	N/A	Bob 2X	N/A	0.20	XvMC, no OpenGL vsync (caused stuttering). Combined frontend/backend machine, remote mysql. Displaying on 1360x768 LCD tv, VGA cable. nForce2 motherboard. Gentoo, gcc 3.4.6, glibc 2.5, nvidia-drivers-1.0.9755-r1 (lower CPU usage), kernel 2.6.20, preempt, 300Hz timer frequency, AC-3 passthrough via SBLive card.
Intel P4 3.0 Ghz Hyper-Threaded (512 KB L2 cache)	1024 MB RAM	NVidia GeForce FX 5200 AGP	SD	12-14%	68-72%	Bob 2X	N/A	0.21	XvMC. OpenGL vsync disabled. Combined frontend/backend machine, local MySQL. Displaying on Sony LCD via DVI cable. Asus P4C800 Deluxe motherboard. CPU is cooled using Zalman CNPS7000-Cu. NVidia video card is passively cooled with manufacturer heat-sink. Fedora Core 8 x86, GCC 4.1.2-33, NVIDIA-Linux-x86-173.14.05 video drivers, Kernel 2.6.24.4-64.
AMD64 Sempron 3000+	512 MB PC3200	GeForce 6200 (AGP) 256 MB Fanless	HD	50-80%	100%	Bob 2X	Bob 2X	0.20.2	Separate frontend and backend machines. Displaying 720p via a DVI to HDMI cable. Running Fedora 7 w/ atrpms and optical audio out w/ AC3 passthrough. Without XvMC, HD was unwatchable. Option "UseEvents" "true" and Option "NvAGP" "2" set for the nvidia drivers within xorg.
AMD64 X2 AM2 3800+ EE SFF	1024 MB DDR2-800 Single Channel	GeForce 6150 (integrated on Asus M2NPV-VM)	SD	23%	59%	Bob 2X	Bob 2X	SVN (r14586)	Backend/Frontend together on one machine. S-Video connection to TV. OSD is black and white. NvAGP=1
AMD Athlon 64 X2 6000+	2GB PC2 6400	Nvidia 7300LE	HD 720p & 1080i	NA	35-40%	NA	Bob	Mythdora 4.0 / MythTV 0.20.2	No problems playing back HDTV sources at 1080p resolution.
Intel P4 2.53 Ghz	512MB	Nvidia GeForce4 MX 4000	SD	20%	80-100%	None	None	Fedora 9 / 0.21 SVN fixes rev 14798	Frontend only, had to disable Composite extension to get color OSD
(Please add your example Hardware stats here!)