[FEATURE REQUEST] Enable zram on devices with 1gb of ram about arkos HOT 9 OPEN

For the emulators supported, no. None of them benefit from anymore than 1GB ram. CPU speed is normally the limitation on performance.

from arkos.

How do you do this?

from arkos.

Here are some resources on that:
https://linuxreviews.org/Zram https://www.kernel.org/doc/Documentation/blockdev/zram.txt
https://www.reddit.com/r/lowendgaming/comments/13d5brx/enable_zram_on_low_end_linux_machines_for_a_free/

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Have you tested this yet to see if this would be a benefit to PortMaster? If so, What's you recommended process for making this option available? If you haven't tested this, can you test this and provide the suggested configuration for this?

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Sure. I just set it up and noticed an mayor improvement in minetest. With normal swap I got 10-12 fps with many stutters, now with zram 15-25fps with less stutters. Without swap and zram it wouldn't even boot.

As for enabling it, it's a matter of editing /usr/bin/init-zram-swapping. I attached my setup that works well for me (init-zram-swapping.txt).

There's one thing to be considered though. Zram generally makes effective ram larger, but it is archieved by compressing and then decompressing data, which is cpu-consuming. So if I reserved 512mb from my 1gb of ram for zram, I should have ~2gb effective total memory, but any usage that exceeds 512mb (the unreserved part) gets compressed and some performance is lost. So I think it should be implemented as a setting rather than being enabled by default. Emulators that use between 512mb and 1gb of ram may underperform a bit for example (haven't tested it, gonna do it tomorrow).

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You think it should be something that's enabled and disabled on a per game basis?

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No, I don't think so. Enabling/disabling swap every time you launch/quit a game is too much I think. Also, I tested God of War on PPSSPP and there was no performance difference with zram enabled, so maybe enabling it system-wide (even by default) would be the best option? Requires some more testing though.

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For emulation, the extra ram won't make a difference unless the unit has less than 1GB total available which none of the devices supported with ArkOS are concerned of. Since it's best for certain limited ports only, I wonder if the portmaster group would consider it for implementation for certain ports that can benefit from it.

from arkos.

For emulation, the extra ram won't make a difference unless the unit has less than 1GB total available which none of the devices supported with ArkOS are concerned of. Since it's best for certain limited ports only, I wonder if the portmaster group would consider it for implementation for certain ports that can benefit from it.

and using for purpose to increase vram and continue getting free memory dont gain any performance? even if are 2 fps in certain systems.

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