Reduce IO primarily during save operations #16190
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hrydgard
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Oct 9, 2022
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| // TODO: Why do we add this padding? Crash avoidance? | ||
| fileData.resize(fileData.size() + 0x01000000); |
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This looks dubious and a bit excessive indeed. Would prefer to remove...
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Yeah, it's 16 MB. Been there for a long time it seems. I guess I can just remove, I'd kinda rather do that separately in case something I did here breaks save data or causes crashes.
-[Unknown]
Let's always use ReadEntireFile() when we can.
These can take time so let's try to bundle them.
We often won't need this, so skip the call until needed.
Improves startup for games that load sceFont on devices with slow storage.
Sometimes, you need to tell the difference between an empty directory and one that doesn't exist at all. We can do this in a single call.
We can skip if there's no UI.
This only caches between touching PSP code, in case something changes. Reduces cases of multiple SFO lookups and reads.
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This reduces cases of GetFileListing or OpenFile combined with GetFileInfo, reduces duplicate file open/close cycles, and avoids some loads that weren't necessary.
This is just intended to improve the performance penalty of scoped storage on Android when dealing with save data.
-[Unknown]