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VERY slow SDL_SetColors() changes when using bittorrent
Matt Klein
Guest
Post Posted: Sat Jan 14, 2006 8:27 pm
Win32

I was trying to fix a bad bug related to SDL in Gordon's Duke Nukem 3D port.
It's an amazing bug that makes a *terrible* lag in the SDL_SetColors() when some
other applications are running at the same time.

EG: One of the application slowing down SDL_SetColors() is Bittorent when
downloading. I guess this is something related to the progess bar of Bittorrent.
If Bittorrent doesn't download then SDL_SetColors() will be fast.

SDL_SetColors() is slowed by approximately 50 to 100 times.

This bug is only noticable when: some app are running (like bittorent) *and*
when doing loops on the SDL_SetColors() to create fading effects. You won't see
the lag by issuing only 1 instance of SDL_SetColors() of course.


Any idea?


Regards,

--
mk
VERY slow SDL_SetColors() changes when using bittorrent
Josh Matthews
Guest
Post Posted: Sat Jan 14, 2006 9:18 pm
It's also possible that Bittorrent is taking up a lot of CPU time, which
would lag other things running.

On 1/14/06, Matt Klein <sdl at m-klein.com> wrote:
Quote:

Win32

I was trying to fix a bad bug related to SDL in Gordon's Duke Nukem 3D
port.
It's an amazing bug that makes a *terrible* lag in the SDL_SetColors()
when some
other applications are running at the same time.

EG: One of the application slowing down SDL_SetColors() is Bittorent when
downloading. I guess this is something related to the progess bar of
Bittorrent.
If Bittorrent doesn't download then SDL_SetColors() will be fast.

SDL_SetColors() is slowed by approximately 50 to 100 times.

This bug is only noticable when: some app are running (like bittorent)
*and*
when doing loops on the SDL_SetColors() to create fading effects. You
won't see
the lag by issuing only 1 instance of SDL_SetColors() of course.


Any idea?


Regards,

--
mk


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Cheers,
Josh

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