We tried 50k on all our machines, however 1 machine would always generate kernel timeout oops.
For that specific machine, we tried several other loop iterations (200k, 50k, 30k, 10k, 5k, 3k, 1k), only 1k passed the swap-mutex 1000 5000 sweep test.
Although 3k iterations would eventually force kernel threads timeout, the kernel oops frequency was far less than 50k.
Because only 1 machine has this issue, we will keep default iteration value 50000, and document this issue here.
We tried 50k on all our machines, however 1 machine would always generate kernel timeout oops. For that specific machine, we tried several other loop iterations (200k, 50k, 30k, 10k, 5k, 3k, 1k), only 1k passed the swap-mutex 1000 5000 sweep test. Although 3k iterations would eventually force kernel threads timeout, the kernel oops frequency was far less than 50k.
Because only 1 machine has this issue, we will keep default iteration value 50000, and document this issue here.