Posted: 2/7/2017 1:39 AM
Post subject: Atari 7800 slow peformance
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Augusto
He/Him
Joined: 11/18/2014
Posts: 37
Using BizHawk 1.11.9.1 Atari 7800 is very slow if compare with previous versions. If using a six core 3,5 GHZ with Windows power saver profile Atari 7800 run less of 40 FPS. Another detail is that In Power profile power saver the cpu is clocked in min 1,4 GHZ even thus not run in good speed. Previous versions run fine in a dual core with CPU min 800 MHZ. Run that driver with the cpu in maximum frequency use more power energy. Anothers drivers cores run in good speed. That is just report. Thanks.
Posted: 2/7/2017 4:26 PM
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Alyosha
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Editor, Expert player (3552)
Joined: 11/30/2014
Posts: 2744
Location: US
GBA TASer of 2023 Homebrew TAS of 2023 Gameboy TASer of 2022 NES TASer of 2015
I tested with 1.11.7 and it does seem to be the case that it runs much faster. There are only a couple of commits to A7800 between then and now, and nothing that looks like it should be slowing anything down from a brief glance. Maybe something is being logged in the background by accident somehow, that sometimes the cause of slowdowns like this, I'll look into it. EDIT: yup, the EMU7800 stuff looks like it got compiled in DEBUG mode which was causing a lot of extra background stuff to happen. I recompiled it in release mode and the speed returned to normal. I don't know how to fix this in the repo so I'll make an issue about it and it should be fixed pretty easily by someone who knows what they are doing.
Posted: 2/8/2017 3:01 AM
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hegyak
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Joined: 3/31/2010
Posts: 1466
Location: Not playing Puyo Tetris
Fixed in https://github.com/TASVideos/BizHawk/commit/2868d921e06b8e09f64a0a17ae886684c0939c3e No, I didn't compile/fix this. Just linking to the fix.
When TAS does Quake 1, SDA will declare war. The Prince doth arrive he doth please.