[Bug 28459] New: Starcraft II use the power of one core

http://bugs.winehq.org/show_bug.cgi?id=28459

Summary: Starcraft II use the power of one core
           Product: WineHQ Apps Database
           Version: unspecified
          Platform: x86-64
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: appdb-unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

On Linux, even if distributed on multiple thread, with thread distributed on
multiple CPU, SC2.exe threads will only use 100% power of (equivalent) one CPU.
It means that, what ever the load is, it will not take more than 100% of one
core or 50% of two cores. I have tested with taskset to also do test with cpu
affinity. That changes nothing about the cpu power available to SC2.exe.

This lead to dramatic loss of framerate comparing to windows.

I have a E8400@4.12GHz, 8GB RAM, Nvidia GTX560Ti OC. Wine 1.3.24, kernel
2.6.35, nvidia drivers 280.13.

How to test.

Set your display option to "optimized window (full-screen)" mode. Take a
testing map, let say "Hard Counter", create two big armies, and start a fight.
Then use the replay. The replay recalculate everything. Each time you reload
the map, play the replay entirely at high speed to load every unit in cache.
Then press T to restart at "faster" speed.

With top in a terminal you can see SC2.exe reach 100% and never go higher. The
framerate will drop dramaticaly. On windows, the same replay use at least 150%
of cpu power of my dual core (I mean 75% on each of the two core).

In Ultra setting (but the same can be seen at lower settings), windows can
render more than twice frame per seconds and the processor are used much more
efficiently.

[Bug 28459] Starcraft II use the power of one core

http://bugs.winehq.org/show_bug.cgi?id=28459

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|appdb-unknown               |-unknown
            Product|WineHQ Apps Database        |Wine

--- Comment #1 from Austin English  2011-09-21 20:05:19 CDT ---
Not an appdb bug.

[Bug 28459] Starcraft II use the power of one core

http://bugs.winehq.org/show_bug.cgi?id=28459

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unspecified                 |1.3.24

[Bug 28459] Starcraft II use the power of one core

http://bugs.winehq.org/show_bug.cgi?id=28459

Hubmaster  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #2 from Hubmaster  2011-09-22 04:02:54 CDT ---
Sounds like a duplicate of bug 11674

[Bug 28459] Starcraft II use the power of one core

http://bugs.winehq.org/show_bug.cgi?id=28459

Hubmaster  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|[e-mail]   |

[Bug 28459] Starcraft II use the power of one core

http://bugs.winehq.org/show_bug.cgi?id=28459

--- Comment #3 from fade  2011-09-22 09:17:58 CDT ---
I have an hypothesis to test.

I looked to the full charge of the system while replaying a big replay. It's
about 75% for windows (can't get more) and  55% for linux. But the framerate is
still at least divided per two.

So here is my double hypothesis.

1) While running under windows the only process marked as cpu consumer is
SC2.exe. While running under linux we have SC2.exe, wineserv, X.org,
pulseaudio. The three last represents about 5% cpu. Which could possibly mean
that windows attribute cpu time spent by subsystems to the main process.

2) wine takes too much overhead so, with almost the same cpu usage, the
framerate, while still being playable, is divided at least per two.

[Bug 28459] Starcraft II use the power of one core

http://bugs.winehq.org/show_bug.cgi?id=28459

Ema  changed:

What    |Removed                     |Added
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                 CC|                            |[e-mail]

--- Comment #4 from Ema  2011-11-02 10:53:44 CDT ---
It definitely looks like to be _very_ related to
http://bugs.winehq.org/show_bug.cgi?id=11674 .

I would mark this as duplicate of that.
Cheers

[Bug 28459] Starcraft II use the power of one core

http://bugs.winehq.org/show_bug.cgi?id=28459

Jerome Leclanche  changed:

What    |Removed                     |Added
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             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |[e-mail]
         Resolution|                            |DUPLICATE

--- Comment #5 from Jerome Leclanche  2011-11-02 12:18:46 CDT ---
Dupe

*** This bug has been marked as a duplicate of bug 11674 ***

[Bug 28459] Starcraft II use the power of one core

http://bugs.winehq.org/show_bug.cgi?id=28459

Austin English  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #6 from Austin English  2011-11-02 12:39:35 CDT ---
Closing.