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Old 01 April 2017, 17:18   #1
hexaae
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Very slow disk access to virtual HD file with SmartFileSystem

Strange case: if I use very old WUAE versions (tested from 2.5.1 to 2.8.1) directory access from WB is visibly insanely fast compared to latest WinUAE builds after 3.x.x
When I open my WHDLoad collection drawer full of hundreds of games, contents are almost instantly displayed with pre 3.x.x. Recent versions instead are incredibly slow (something like a real A500!).

Is this "normal" because something is changed in the code for compatibility reasons?

Attached my cfg.

Toni, I can send you a private link with my HD image from my GDrive
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File Type: 7z Hexaae most stable Full Overscan.7z (4.1 KB, 13 views)

Last edited by hexaae; 01 April 2017 at 17:30.
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Old 01 April 2017, 17:55   #2
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To me the latest versions of WinUAE with AFA OS are very fast, see the attached video, while unpack a large archive i opened folders with hundreds of PNG icons.

[ Show youtube player ]
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Old 01 April 2017, 18:04   #3
Toni Wilen
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How is that reply going to help? It makes no sense..

--

Start by switching off vsync. You are not going to get fast anything with vsync on.
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Old 01 April 2017, 19:07   #4
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Quote:
Originally Posted by Toni Wilen View Post
How is that reply going to help? It makes no sense..

--

Start by switching off vsync. You are not going to get fast anything with vsync on.
Sorry, my typo: I meant g-sync. With or without v-sync WUAE emulation option nothing changes. The speed difference is huge between before vs 3.x.x+...

@Toni
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Old 01 April 2017, 19:13   #5
Toni Wilen
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Attach logs first. (tick debugging in paths panel, boot to "slow" wb, quit, attach bot log files)
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Old 01 April 2017, 19:25   #6
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Ok, attached bootlogs.
Booted, opened the "slow" drawer full of WHDLoad games and then quitted emu.
Attached Files
File Type: zip winuaebootlog.zip (12.0 KB, 7 views)
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Old 01 April 2017, 19:40   #7
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Video (will take 5-10 mins to YouTube before you can see the HD version):
[ Show youtube player ]
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Old 01 April 2017, 20:08   #8
Toni Wilen
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What is last "fast" version? (non-beta, after found, it is time to find the exact beta).

What do you mean by g-sync? If you use g-sync, never enable any normal vsync option, it won't work. Correct option is "variable sync" option.
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Old 01 April 2017, 20:24   #9
hexaae
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Tested all old versions: last "fast" was 3.0.0 (2014.12.17)
Slowdown started with 3.1.0.
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Old 01 April 2017, 21:00   #10
Toni Wilen
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3.1 betas are temporarily back. http://www.winuae.net/files/b/winuae_3100bX.zip (X=3 to 23). First two were winuae_3010b1.zip and b2.
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Old 01 April 2017, 21:12   #11
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Tested 310b03 and found the slowdown let me try b1 and 2...
Uhm... even with b1 I can find the slowdown.
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Old 02 April 2017, 09:06   #12
Toni Wilen
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Try adjusting CPU idle setting. Idle logic changed completely in b1.
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Old 06 April 2017, 10:59   #13
hexaae
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Quote:
Originally Posted by Toni Wilen View Post
Try adjusting CPU idle setting. Idle logic changed completely in b1.
You're right Toni: changing CPU Idle settings (lowering it to the left) solves the problem with slow drawers opening!
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