Chess uses 100% cpu only when I play black

[Ryan Fugger]

Binary package hint: gnome-games

When I play white against computer's black, the program takes very little cpu, but when I play black against the computer's white, it takes 100% cpu.

Using Hardy 8.04.1, kernel 2.6.27-1-generic. Gnome-games 1:2.22.3-0ubuntu2.

[Pedro Villavicencio (pedro)]

thanks for your report, it uses the same quantity of cpu here if you play human: white, comp: black or viceversa are you using the 3d engine? does it works the same way with another new user created on your system? may you try to reproduce the same with hardy? thanks in advance.

[Ryan Fugger (rfugger)]

A little more investigation shows that it uses 100% cpu whenever I start a new game using the "new game" command. The only way it uses a reasonable amount of cpu is when I have ended a game on the previous session, and the new session starts with the default game (human: white vs. comp: black).

The 100% cpu usage persists on games started with "new game" even if I restart the app, as long as I have made a move before restarting. If I haven't made a move, the "new game" is lost and the app restarts with the default game, so it is impossible for me to play black without having the 100% cpu.

The behaviour doesn't change in 3d mode. (I am unable to make more than one move in 3d mode due to another bug.)

As I mentioned, I am using Hardy. I will be upgrading to Intrepid in the next days.

I created a new user and the problem is the same.

I notice that the app spawns a new gnome-gnuchess process for every new game, and those processes are the ones using all the cpu. If I start one "new game", and then start another, the system will have two gnome-gnuchess processes running, each using 50% cpu. WTF?

[Ryan Fugger (rfugger)]

I should clarify that when I say above that I start two new games in a row, I mean from the same application window -- and yet there are two gnome-gnuchess processes churning away at the cpu, even though I'm only playing one game (only one chess window is open).

[Ryan Fugger (rfugger)]

Upgrade to intrepid seems to resolve this problem.

[Sebastien Bacher (seb128)]

closing the bug since that works correctly now

[Ao Phidly (aophidly)]

cpu problem still existed for me in Intrepid. 100% usage with a quad core. switched to Crafty chess engine and cpu usage dropped down to almost nothing.

[Akdo (menoft)]

Still existed on jaunty

[Alicia Boya (ntrrgc)]

Still existing on karmic
wtf?