[Bug 84648] New: Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[Bug 84648] New: Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 1781 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

            Bug ID: 84648
           Summary: Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: b747xx@gmail.com

Created attachment 107298
  --> https://bugs.freedesktop.org/attachment.cgi?id=107298&action=edit
HUD showing FPS drop and mem transfer

I got an lag / pause (stopping for one to +- 5 seconds) when I get transfer of
memory from the VRAM to GTT and the opposite, the GTT to VRAM.

It append only on Minecraft (No problem with EVE-Online & Source Engine games),
even sometime when it is not on the screen, and in that case, the whole X ui
stay locked until the transfer finish. It usually go fine until the VRAM reach
between 280-300MB and it start playing with the GTT.

The bug Append with:
Kernel 3.17-rc2+ (did not test the RC1, 3.16 was fine)
Mesa GIT newer than somewhere in the beginning of september.

Note that these don't need to be recent for the two. A old kernel with a new
Mesa and a new Kernel with a old Mesa recreate the problem. Having the latest
GIT of the two don't fix the problem. (I did in fact update libdrm, llvm, mesa,
xf86.... after upgrading the kernel to rc2, thinking something changed and was
requiring a newer mesa.

I have attached a screenshot with the Gallium hud showing the FPS and memory.

PS : I thought initially that it was the same as BUG #82050 but got requested
to file another bug.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 3362 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 589 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

Mathieu Belanger <b747xx@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #107298|0                           |1
        is obsolete|                            |

--- Comment #1 from Mathieu Belanger <b747xx@gmail.com> ---
Created attachment 107299
  --> https://bugs.freedesktop.org/attachment.cgi?id=107299&action=edit
Gallium hud screenshot

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2027 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 445 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #2 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Mathieu Belanger from comment #0)
> A old kernel with a new Mesa and a new Kernel with a old Mesa recreate the
> problem.

Hmm, that's weird. Can you try bisecting Mesa with an old kernel and/or
bisecting the kernel with old Mesa?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1322 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 203 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #3 from commiethebeastie@gmail.com ---
Fixed in linux-3.19rc1.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 980 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 290 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #4 from commiethebeastie@gmail.com ---
Created attachment 112921
  --> https://bugs.freedesktop.org/attachment.cgi?id=112921&action=edit
Lags in ETS2

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1184 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 241 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #5 from commiethebeastie@gmail.com ---
Confirm this bug with agd5/linux/drm-next-3.20-wip in ETS2 :(

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1018 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 373 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #6 from commiethebeastie@gmail.com ---
Created attachment 113077
  --> https://bugs.freedesktop.org/attachment.cgi?id=113077&action=edit
ETS2 with GTT-usage:100

My 3Com U.S Robotics modem 56k works more faster than the GART memory.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1289 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 840 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #7 from smoki <smoki00790@gmail.com> ---
(In reply to commiethebeastie from comment #6)
> Created attachment 113077 [details]
> ETS2 with GTT-usage:100
> 
> My 3Com U.S Robotics modem 56k works more faster than the GART memory.

 Yeah i can confirm that with ETS2, but also with any earlier 18 Wheels of
Steel games (http://en.wikipedia.org/wiki/18_Wheels_of_Steel) played in wine (i
have all of them :)) have same very worse stutter... try how it goes with
reverting this mesa commit, it fixed that worse stutter in those games for me
on Kabini APU... well and other issues:

https://bugs.freedesktop.org/show_bug.cgi?id=88658#c6

 And yeah please use at least kernel 3.19 or later if you test that

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2105 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 299 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #8 from Michel Dänzer <michel@daenzer.net> ---
Does
http://cgit.freedesktop.org/mesa/mesa/commit/?id=a338dc01866ce50bf7555ee8dc08491c7f63b585
help?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1207 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 299 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #9 from commiethebeastie@gmail.com ---
>Does http://cgit.freedesktop.org/mesa/mesa/commit/?id=a338dc01866ce50bf7555ee8dc08491c7f63b585 help?

Possible yes. :)

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1211 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 1330 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #10 from jochen <moebius282@gmail.com> ---
https://bugs.freedesktop.org/show_bug.cgi?id=89203 is probably a duplicate of
this bug.

I tested it with linux 3.19 and different (git~51b43c5, 10.4.6, 10.3.5) mesa
versions, but they don't seem to make a difference. So, no,
a338dc01866ce50bf7555ee8dc08491c7f63b585 does not help. Even with mesa 10.3.5,
where some people reported this was the the last working version for them, the
hangs occured. So it's probably related to some kernel issue, too.

The hangs only seem to occur ( at least surface ) on Minecraft 1.8+. Probably
because that was a bigger update and they changed the rendering code
significantly. The hangs occur every few seconds and freeze the screen for <5s.
Unfortunately I get a similiar issue with FTB/modded Minecraft 1.7. But this
time the game itself runs fine, but whenever I switch the virtual workspace in
my window manager (awesomewm), it takes up to several *minutes* until the
system reacts again and the screen is updated. This only happens if the game
was running for some time -> probably more vram/gtt usage. Even the cursor
freezes. Big annoyance.

The testing was done on a HD5850, so r600g is affected, too.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2291 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 766 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #11 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to J0k3r from comment #10)
> https://bugs.freedesktop.org/show_bug.cgi?id=89203 is probably a duplicate
> of this bug.
> 
> I tested it with linux 3.19 and different (git~51b43c5, 10.4.6, 10.3.5) mesa
> versions, but they don't seem to make a difference. So, no,
> a338dc01866ce50bf7555ee8dc08491c7f63b585 does not help. Even with mesa
> 10.3.5, where some people reported this was the the last working version for
> them, the hangs occured. So it's probably related to some kernel issue, too.

You might be seeing:
https://bugzilla.kernel.org/show_bug.cgi?id=90741

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1884 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 308 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #12 from J0k3r <moebius282@gmail.com> ---
Created attachment 114311
  --> https://bugs.freedesktop.org/attachment.cgi?id=114311&action=edit
minecraft-1.7.10 mesa-1.4.6

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1233 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 307 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #13 from J0k3r <moebius282@gmail.com> ---
Created attachment 114312
  --> https://bugs.freedesktop.org/attachment.cgi?id=114312&action=edit
minecraft-1.8.3 mesa-1.4.6

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1230 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 340 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #14 from J0k3r <moebius282@gmail.com> ---
Alex, as I understand it these kernel changes are just going to make it into
4.1. That's a long time in the future. Will the fixes be backported to
3.19/4.0?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1118 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 467 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

--- Comment #15 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to J0k3r from comment #14)
> Alex, as I understand it these kernel changes are just going to make it into
> 4.1. That's a long time in the future. Will the fixes be backported to
> 3.19/4.0?

They were applied to 4.0 and they will also show up in the stable kernels.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1330 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 84648] Lag/Pause When VRAM->GTT or GTT->VRAM transfer occur

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 563 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=84648

Mathieu Belanger <b747xx@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #16 from Mathieu Belanger <b747xx@gmail.com> ---
Tested kernel 4.0 with latest mesa git about 6 days ago.

Bug seam to be fixed :)

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2056 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel