Create memory usage tracker (to verify if map picker causes OOM)

[sprunk]

See ZeroK-RTS/Zero-K#3607

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This causes the OOM for @Anarchid:

Start Chobby -> Singleplayer&Coop -> Skirmish -> Advanced -> Change map -> Cancel -> Start.

This does not cause the OOM:

Start Chobby -> Singleplayer&Coop -> Skirmish -> Advanced -> Start.

Result: LuaUI fails to load because "not enough memory".

Launching the same scenario directly = without chobby, results in working ZK.

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The first task here is to verify if this is truly the case by creating a memory usage tracker.

[GoogleFrog]

Sounds like something for the ZK repository. All chobby may be doing is taking up a bit of memory and formatting modoptions differently. ZK + Chobby doesn't get anywhere near the memory limit of 800MB or so when working correctly.

[sprunk]

The ticket really belongs to both (since reaching the mem cap is the shared "fault" of both parts) but the ZK repo already has a bunch of Lua OOM tickets ( ZeroK-RTS/Zero-K#2131 , ZeroK-RTS/Zero-K#2660 , ZeroK-RTS/Zero-K#3390 ).

Failing to load points to Chobby though since at that point there isn't much data for the ingame Lua states to hold. Modoption formatting should be easy to check. @Anarchid: is "the same scenario" actually using the exact same startscript as generated by Chobby or just an equivalent?

[Anarchid]

s "the same scenario" actually using the exact same startscript as generated by Chobby or just an equivalent?

Equivalent.

[GoogleFrog]

Works for me on Thornford 2. I am ignoring this report until its quality is significantly improved.

[Anarchid]

Here's infolog, hopefully that increases the quality at least a bit. https://pastebin.com/jEFij2pJ

[Anarchid]

The equivalent scenario launched using the "host game" option (with !game Zero-K $VERSION), still works.

The OOM happens regardless of whether chobby is connected to the server.

[Anarchid]

The OOM does not happen if i let the skirmish wizard pick one of the four maps it has by default.

The OOM happens if i pick any map through the map picker in the advanced skirmish config (including any of the default skirmish maps).

I'm now pretty sure the map picker is what does it for me. Do i have too many maps?

[Anarchid]

It's super definitely the map picker. This causes the OOM for me:

Start Chobby -> Singleplayer&Coop -> Skirmish -> Advanced -> Change map -> Cancel -> Start.

This does not cause the OOM:

Start Chobby -> Singleplayer&Coop -> Skirmish -> Advanced -> Start.

[GoogleFrog]

Make a luamenu widget that tracks and prints memory usage.

[Anarchid]

1435 still OOMs after opening the map picker once, then closing it with no changes, then launching default skirmish on default map.