I’ve found more issues that cause stuttering and the Chunk Updates counter to increase. Tests were made on the latest test release.
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An activated Reactor Core causes stuttering if it cannot release hot coolant. If you first let the reactor reach full power, and then shut off the hot coolant outlet pipe, Chunk Updates immediately reaches 20. If you first shut off the pipe and then turn on the reactor, Chunk Updates reaches 20 gradually, and not immediately. It seems that the growth of the Chunk Updates counter is connected with the neutron level or with the rate of conversion of cold coolant to hot coolant. The amount of hot coolant accumulated in the Reactor Core does not seem to matter. Chunk Updates reverts to 0 when the Reactor Core shuts down.
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If hot coolant accumulates in the Reactor Core (for example, if the Reactor Core produces more hot coolant than the Heat Exchangers can consume), Chunk Updates increases and can go up to 20 and stays at this level until the accumulated hot coolant in the Reactor Core runs out. It doesn’t matter if Reactor Core is on or off.
Heat Exchangers seems to have both of the above problems, although it only raises Chunk Updates to 10.
- The Heat Exchanger may increase Chunk Updates to 10 if the inlet pipe becomes empty during its operation. Chunk Updates returns to 0 when the Heat Exchanger itself runs out of accumulated hot coolant.
I will point out, in case it matters, that I did not put Boilers on Heat Exchangers during the tests.