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Old 2020-05-20, 22:29   #524
kruoli
 
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"Oliver"
Sep 2017
Porta Westfalica, DE

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Something else I observed is that when I am running multiple workers needing high memory (as in ECM or P-1), it will randomly (i. e. without observable circumstances) interrupt a worker in its second stage stating multiple times "Available memory is x MB \\ Using y MB of memory" and then reinitializing it again from the last known point of work. This does occur with some time in between. For small exponents that extra work seems to be negligible, but when doing small exponent ECM and additionally "normal" P-1 simoultaneously, it will can and will slow down the latter noticably.

This is not limited to some specific CPU. It is not limited to a specific CPU vendor, neither. I tested some i5's and i7's from 2nd to 9th Gen, also AMD Ryzen 1st Gen.
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