Factorio Forums

After an autosave while /c game.speed 2 is used, the game goes to 60UPS for a couple of seconds.

expected:
The game stays at speed 2 120UPS even after autosave.

This is probably caused by the game running the save compression algorithm in the same thread as the main game.

DaveMcW wrote:This is probably caused by the game running the save compression algorithm in the same thread as the main game.

I highly doubt that because it goes to exactly 60UPS. And shouldn't the compression happen while you wait for the game to save? And the compression shouldn't take that long on my hardware.

(Oh, and the time it lasts in this reduced speed depends on the UPS, if I go to 5x/300UPS it will go down 4x/240UPS)

Can't reproduce

In case it matters it's on linux, it also happens right after loading the world(sometimes). It sometimes also occurs after keeping the game paused after a (long) while.

Thanks for the report,

I also cannot reproduce the issue:

Sounds like it might be some kind of power saving feature.

Twinsen wrote:Sounds like it might be some kind of power saving feature.

Why would it be a power saving feature? At most while playing factorio my CPU utilization is 50%, and I'm on a desktop.

(Oh and it doesn't happen after every autosave just after a lot of them)

It might be a workaround for those people who can't get to the console when the game is autosaving continuously because they set their speed too high.

TruePikachu wrote:It might be a workaround for those people who can't get to the console when the game is autosaving continuously because they set their speed too high.

You can reduce the frequency of the auto saving in one of the 'esc' key screens.
And the game can't go over 300UPS from my testing, so you should have time to reduce the UPS with the console.

iame6162013 wrote:the game can't go over 300UPS from my testing, so you should have time to reduce the UPS with the console.

If the map is small and the CPU capable you can go beyond 50k.

I can tell you that these errors(weird dips in UPS and the UPS being capped at 300) didn't occur in my (limited) testing in 0.12.35. (nor did I notice any weirdness while playing factorio prior to .13 )

EDIT:
I can not reproduce this error(the dips in UPS, not the cap)* prior to 0.13.10 (so in 0.13.10 the error occurs sometimes, but it feels like it happens less often).
EDIT2:
The cap (the limit in ups to 300) came with update 0.13.12, if you want to I could create a new topic about that.