The pool is made by the first thread that uses it and its workers inherit that thread's nice value.
That thread was the nice-10 rugnux thread, so without CAP_SYS_NICE / RLIMIT_NICE the workers stayed
at nice 10 for the life of the broker - and the comment in RugnuxThread said the opposite.
JFJochReceiverRugnux's constructor now makes the pool first, at the broker's priority, so the
existing "lower it only where it can be raised back" logic is what decides. The pool constructor also
waits for every worker to record its thread id, so a SetNice right after construction reaches all of
them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
leonarski_fandClaude Opus 5.5
91f6ac6749