When building the thermal evap tower or boiler, for instance, the game experiences lag proportional to the size of the structure when placing/destroying blocks nearby, reaching hundreds of millis per update for full-sized structures.

This makes building anywhere near the structure very painful.

I've noticed the area experiencing update lag extends out to a certain range into the world, beyond which blocks can be placed lag free. A 5x5 test boiler in a new flatworld requires me to stay 12 blocks away in order to avoid block placement lag. Maybe that depends on chunk boundaries or other particulars... not sure.

I assume it's the multi-block is doing validity testing? I wonder if it could employ an incremental test that spans ticks to avoid single-tick lag? Obviously speaking from ignorance here...

Hmmm... it does seem to align to chunks.

Spent some time instrumenting, and It doesn't appear to be related to update processing of the multiblock... all the tick-related update paths around that area are consistently taking on the order of a milli or less, even when the game freezes for 300-500 millis or so when placing or destroying a block in the vicinity of a multiblock.

It definitely occurs with Minecraft 1.10.2 + forge 12.18.1.2014 + master Mekanism and no other mods (well... + MCMultiPart).

The fact that it follows chunk boundaries so well suggests some sort of interplay between your multiblocks and Minecraft chunk processing, but I just don't know the intrastructure well enough for that to mean anything to me.

Maybe this is already a known issue?

F3 shows gameRenderer.level.terrain_setup.rebuildNear spiking rapidly when I start spamming blocks in the same chunk as a multiblock.

Ditto for any other chunk, but to nowhere near the same degree.

Mapped out the laggy region of a turbine... it's 18x18. So not chunks, but not-so-coincidentally the max multiblock size?

It appears to be in the CTM engine. There's a CTMRenderer config flag, but it seems it no longer has any effect? Looks like non-CTM code was ripped out in May.

FWIW I have the exact same issue. Glad it isn't just me. If I move away from my Mekanism stuff, block placement returns to normal speed. Seems to get worse with larger multis. In my case a 18 height solar evap but I've seen it with max size turbines too in creative.

Fixed in development!

Woo hoo!!

On Aug 5, 2016, at 3:46 PM, Aidan [email protected] wrote:

Fixed in development!

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub, or mute the thread.