[Cin] Observations using GPU on DNxHD and MPEG proxy while running CinelerraGG
randrianasulu at gmail.com
Thu May 16 00:28:40 CEST 2019
Try to enable/disable Vsync in ... driver's control application (I assume you use proprietary drivers with Nvidia GTX-750ti)
And also same in window manager settings.
Try to set CPU and GPU to maximum performance (I think I observed some unusually slow playback
when I tried to play av1 files with my libdav1d hack at just 1.8Ghz * 4 cores. Setting CPU to 2.6 Ghz fixed this!
In both cases CPU was not completely loaded, according to gkrellm I have in a corner)
Try to check how fast your PCI-E link.
(lspci -vv as root)
01:00.0 VGA compatible controller: NVIDIA Corporation G92 [GeForce 8800 GS] (rev a2) (prog-if 00 [VGA controller])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 38
Region 0: Memory at fc000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
Region 3: Memory at fa000000 (64-bit, non-prefetchable) [size=32M]
Region 5: I/O ports at e000 [size=128]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities:  Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities:  MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee00000 Data: 0000
Capabilities:  Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <4us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag+ PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x16, ASPM L0s L1, Latency L0 <256ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
Capabilities: [128 v1] Power Budgeting <?>
Capabilities: [600 v1] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Kernel driver in use: nouveau
LnkSta: Speed 5GT/s, Width x16 - sounds like PCI-E 2.0
Check if VDPAU works for simple players - mpv, mplayer.
В сообщении от Thursday 16 May 2019 00:22:30 Pierre autourduglobe написал(а):
> Yes, I am also inclined to believe that my video card is the culprit...
> for the lack of frame rate. It would not be able, through Open-GL, to
> decode simultaneously the 5 streams (composer + 4 mixers).
> I've never played any games on my computers either... but "gamer" cards
> are much cheaper than pro cards, while being relatively powerful, and
> that's why I've always chosen them for video editing.
> My current video card dates from 2014, it's a Nvidia GTX-750ti:
> It includes 2 GB of GDDR5 memory, 128-bit memory interface and a
> Bandwidth of 86.4 GB/s
> If it becomes clear that it is the guilty one... I'm ready to buy
> another more powerful one.
> I started looking at what could be bought, which would not be too
> expensive and would be compatible with my current power supply (which I
> don't want to change).
> I also don't know if Nvidia video cards or AMD cards would be the most
> compatible and optimized for Cinelerra-GG.
> Here are the models I'm considering right now:
> - Nvidia GeForce GTX 1070 (8GB, 256-Bit GDDR5, Bandwidth 256 GB/s
> - Nvidia GeForce GTX 1660 Ti (6GB, 192-Bit GDDR6, Bandwidth 288 GB/s
> - AMD Radeon RX 580 (8GB, 256-Bit GDDR5, Bandwidth 256 GB/s
> - AMD Radeon RX 570 (4GB, 256-Bit GDDR5, Bandwidth 224 GB/s
> But I'm not ready to buy right now....
> On 19-05-15 16 h 21, Phyllis Smith wrote:
> > Pierre:
> > From your last 2 emails and tests as compared to what I see, I am
> > thinking that the graphics board is the bottleneck. Doing similar tests
> > with the Clowns, as compared with your observations below, I am always
> > getting close to 29.97 fps in either X11 or X11-OpenGL. The reason I
> > think it is probably your graphics board is because my laptop is not
> > really a "work" computer but rather a "gaming" computer (it was an
> > inexpensive AMD computer that has never, ever played a single game!) so
> > I would imagine the graphics board is meant to be pretty good.
> > The results of these tests of the mpeg proxies tell me that with both
> > the X11-OpenGL driver and the X11 driver, using vdpau results in a very
> > slight reduction in the use of my CPU, but that this does not improve
> > the frame rate possible that these video drivers allow to display...
> > The above seems to indicate that the graphics board does not improve
> > anything and you have plenty of CPU anyway, so you might as well use that.
> > X11 allows in all cases to display at least 29.97 frame/sec sources
> > that
> > have been shot at this speed.
> > X11-OpenGL is always limited to a maximum of about 12 frames/sec.
> > These results are approximately true for all the types of media I
> > tested, whether DNxHD.mov, HDV (MPEG-2.m2t), AVC H264.mp4 or even
> > proxies in mpeg.mpeg.
> > Given these results, I don't really see the advantage of using
> > proxies... In any case, the video driver used will determine the
> > possible frame rate regardless of the type of media used.
> > I'm actually wondering if the constant frame rate limit of 12
> > frames/sec
> > provided by X11-OpenGL in my tests with 4 mixers, regardless of the
> > media type, doesn't actually indicate a bug somewhere or a limit
> > inherent in my equipment. But then how do you explain the best
> > throughput with X-11?
> > Instead of working with 29.97 fps media, I loaded Big Buck Bunny which
> > is 60 frames per second. And there may be something strange going on as
> > Pierre indicated that I will have to test on a faster computer. Because
> > when I played this, like Pierre, it seems to limit it at always 30 fps
> > whether I user X11 or OpenGL. Then when I proxy it to 1/2, I thought I
> > should have improved the frame rate but it too was at only 30 fps.
> > I will have to do the tests on GG's computer to eliminate the
> > possibility of a limitation / bug. Phyllis
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