Menu
▾
▴
#501 bttv878+tvtime+any kernel 2.6.10
closed-invalid
5
2005-01-27
2005-01-10
Anonymous
No
Under Kernel 2.6.9 tvtime + bttv uses about 40%
(standard deinterlacer) of cputime on AthlonXP3200+ -
think it s to high -- but now on kernel 2.6.10 it
increased over 80%, no over 90% always - what the hell
tvtime needs so much cpuclock - this sucks - i thoght
40% is high, but doesn't matter, because i thought it's
the Deinterlacer Filter
mfg
horizon
Logged In: YES
user_id=157713
Also with Atlon64 3000+
However the CPU load is assigned to XFree86, not to TvTime.
DVB-C Fujitsu-Siemens with analog-modul.
Kernel 2.6.10
Logged In: NO
Right by running tvtime under these circumstances
xorg/tvtime has the high cpu load but however it must depend
on tvime
Logged In: NO
You can run tvtime with the same cpuload as with 2.6.9 on
2.6.10 if you don't use the new video-modul of ACPI. I got
now 35% with standard settings of tvtime. so better then before.
greetings
jamatik
Logged In: NO
I must correct me! This only works on my test-kernel
gentoo-dev-sources-2.6.10-r5. e.g. for the nitro-sources it
makes no difference.
mfg
jamatik
Logged In: YES
user_id=153320
If you are seeing high CPU usage, it may be a problem with
your X driver. Please run tvtime from a terminal window and
hit 'd' in the tvtime window. We will print some debug
statistics. Please post the statistics you see in the
terminal window into this bug.
Logged In: YES
user_id=157713
Well if you think it helps.
tvtime: Stats using 'Television: Full resolution' at 720x576
[RT].
tvtime: acquire 0,64 ms, show bot 21,53 ms, build top 1,21 ms
tvtime: waitbot 0,01 ms, show top 21,46 ms, build bot 0,83 ms
tvtime: average blit time: 21,52 ms, average render time:
1,03 ms
tvtime: Last frame times top-to-bot: 28,73 ms, bot-to-top:
22,69 ms
Logged In: YES
user_id=153320
Those stats show that it is taking 21 milliseconds to draw
one frame. This is at least 10x slower than what I would
expect from your CPU. Something has destroyed your AGP
performance.
Did you forget to load agpgart? Did you compile your kernel
without support for MTRRs? If you go back to an older
kernel, does the problem go away?
The problem here is not tvtime, it is something with your
kernel and video card driver.
Logged In: YES
user_id=157713
I changed my Videocard to a Radeon, Cpu load ist now at 60%
for Xfree86, however i think its still too much.
agpgart loaded
MTRRs enabled
tvtime: Stats using 'Television: Full resolution' at 720x576.
tvtime: acquire 13,82 ms, show bot 11,99 ms, build top 1,18 ms
tvtime: waitbot 0,01 ms, show top 12,19 ms, build bot 0,81 ms
tvtime: average blit time: 12,03 ms, average render time:
1,35 ms
tvtime: Last frame times top-to-bot: 26,78 ms, bot-to-top:
13,39 ms
If you think it's no TVtime problem, maybe you've an idea
how I can solve this.
Logged In: YES
user_id=153320
Those stats show that it is taking 12 milliseconds to upload
one frame of video to your video card. This is
approximately an upload speed of 70 MB/sec. Minimum that I
would expect for any AGP card would be 200 MB/sec.
Something is still broken with your video card driver or
your kernel.
Can you post your X log file to the web somewhere
(/var/log/XFree86.0.log)?
Logged In: YES
user_id=157713
http://www.8ung.at/sirtwist/XFree86.0.log
Logged In: YES
user_id=328850
As far as i can see, you have a problem with either X or your kernel
as dri/agp is disabled. No wonder your upload speed is this low.
Logged In: YES
user_id=157713
DRM/DRI is enabled. AGP too, see below. Could my RAM be a
Problem? I have 512 MB PC2100 (266) . Maybe it's too slow?
Jan 26 15:18:48 debian kernel: Linux agpgart interface
v0.100 (c) Dave Jones
Jan 26 15:18:48 debian kernel: agpgart: Detected AGP bridge 0
Jan 26 15:18:48 debian kernel: agpgart: Maximum main memory
to use for agp memory: 439M
Jan 26 15:18:48 debian kernel: agpgart: AGP aperture is 64M
@ 0xe4000000
Logged In: YES
user_id=153320
I can't get your log file. The connection keeps timing out.
Logged In: YES
user_id=328850
Maybe you can add it as attachment to this tracker item
Logged In: YES
user_id=157713
Don't know how to add the File. Maybe only admin or
trackerstarter can add sth.?
Another URL with the file:
http://www.rossband.net/priess/XFree86.0.log
Logged In: YES
user_id=328850
You have definitevely got problems with dri/agp:
(WW) fglrx(0): ***********************************************
(WW) fglrx(0): * DRI initialization failed! *
(WW) fglrx(0): * (maybe driver kernel module missing or bad) *
(WW) fglrx(0): * 2D acceleraton available (MMIO) *
(WW) fglrx(0): * no 3D acceleration available *
(WW) fglrx(0): ********************************************* *
+ a lot of (or alike):
symbol drmFree from module
/usr/X11R6/lib/modules/linux/libfglrxdrm.a is unresolved
I`m not sure what is causing this, but it`s kernel/XFree related.
and your card is thus not using AGP.
Logged In: YES
user_id=153320
That error message about DRI probably explains the problem.
The driver will likely use DMA to transfer video frames, so
if there is something wrong with DRI then this capability
may be disabled or using a slow fallback. You are using the
driver from ATI, so it might be worth it to ask them why the
performance is so bad. Besides the bad messages from DRI,
another line in the file is this one:
(==) fglrx(0): Overlay disabled
(**) fglrx(0): Overlay disabled
This probably does not refer to video overlays, but to a
pseudocolour overlay, but it might be worth it to ask ATI
and make sure your video overlays are not being disabled for
some reason.
Logged In: YES
user_id=157713
Ok the problem seems to be solved. I reconfigured XFree86
with help of fglrxconfig. I'm not sure where the real
differences are. However I'll try to find them and post them
here. Maybe ist helps another user.
Perhaps I this will also solve the same problem with my
Nvidia-Card.
Thanks a lot for your time and help.
Logged In: YES
user_id=153320
Glad it's fixed. I'm closing this bug and marking it
invalid, since there were no changes in tvtime.