Don't think this is a bug. There is definitely a performance regression
using the intel driver on version 2.5.1 in jaunty. Bug # is 252094.
Link: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/252094
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INTEL_BATCH=1 not implemented in Intrepid ?
https://bugs.launchpad.
Pandemonium,
I was addressing citizenofnowhere, and his issue is almost certainly due
to vblank_mode being enabled - but he is using new version of the intel
and libdrm code. I don't have access to any Intel hardware in order to
test at the moment, so I can't comment any further. If you see a
glxg
Conn,
Executing glxgears with the vblank_mode variable set as you described
makes no performance difference on my Acer Aspire One notebook.
Likewise, disabling vertical sync using the driconf utility does not
offer any performance gains in glxgears. Can you offer any further
explanation or instru
Hans,
the environment variable vblank_mode controls this behaviour. You can
revert to the original behaviour for glxgears like so:
$ vblank_mode=0 glxgears
There is also a configuration utility in our repositories called
"driconf", which can expose and set all the DRI configuration options,
incl
Ahem,
What you are saying about VSync sounds right. Do you have any
suggestions for annafil to help get a more realistic glxgears score?
Hans
Conn wrote:
> That is not a regression, it's a configuration change that won't
> adversely affect performance like you seem to imagine.
>
> Your glxge
That is not a regression, it's a configuration change that won't
adversely affect performance like you seem to imagine.
Your glxgears performance have been constrained to the refresh rate of
your display device (75Hz, judging from your results). This is perfectly
normal behaviour. Even a top of th
It got worse.
I compiled the 2.5 intel driver and recompiled libdrm2 to version 2.4.1
- FPS dropped from 350 (about averagish without intel_batch) to 75.
(this is with no compositing on, with compositing it's like 40!) Driver
section in Xorg is clean, I let X autodetect everything.
I've tried the
Hans I'll try it out on my AAO and if its any better i'll package it
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I gave it a try, but the build instructions mention an autogen script
that is missing from the driver source package. I tried ./configure,
and it ran, telling me I was missing some files that I don't know how to
install. If I find some more time, I'll work on this some more.
Hans
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INTEL_BATC
I'll give this a try. I think I'll wait for the final release of 8.10,
and base my attempts off of that.
Hans
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Too bad, as the performance regression is quite notable also on a aspire
one.
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I spoke with upstream about this, and confirmed that the option is gone.
Regarding the performance regression, they're not so interested in
performance reports for 2.3 -> 2.4. They'd be interested in hearing
about performance issues from 2.3 to 2.5, however we don't have a test
package for that at
Yeah, that was an experimental debug parameter for the old version of
-intel, and upstream removed it (and the code it influenced) from the
2.4 driver we carry in Intrepid.
Since you've done some measures and included evidence from hardy and
intrepid, then this bug may be worth forwarding upstream
** Attachment added: "lspci-vvnn_intrepid.txt"
http://launchpadlibrarian.net/18683256/lspci-vvnn_intrepid.txt
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** Attachment added: "lspci-vvnn_hardy.txt"
http://launchpadlibrarian.net/18683248/lspci-vvnn_hardy.txt
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** Attachment added: "Xorg.0.log_intrepid.txt"
http://launchpadlibrarian.net/18683230/Xorg.0.log_intrepid.txt
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** Attachment added: "xorg.conf_intrepid.txt"
http://launchpadlibrarian.net/18683223/xorg.conf_intrepid.txt
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** Attachment added: "Xorg.0.log_hardy.txt"
http://launchpadlibrarian.net/18683220/Xorg.0.log_hardy.txt
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** Attachment added: "xorg.conf_hardy.txt"
http://launchpadlibrarian.net/18683213/xorg.conf_hardy.txt
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INTEL_BATCH=1 not implemented in Intrepid ?
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Hi coolos,
Please attach the output of `lspci -vvnn`, and attach your /var/log/Xorg.0.log
file from after reproducing this issue. If you've made any customizations to
your /etc/X11/xorg.conf please attach that as well.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => In
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