Re: [PATCH v2 3/3] sched/fair: break out of newidle balancing if an RT task appears

From: Mike Galbraith
Date: Sat May 15 2021 - 04:37:24 EST


P.S. The largest I spotted before boredom won:

kworker/3:1-22161 [003] d...2.. 11559.111261: load_balance: NEWIDLE rq:4 lock acquired
kworker/0:0-21137 [000] d...1.. 11559.111262: load_balance: NEWIDLE rq:4 locked - aborting
kworker/7:1-20870 [007] d...1.. 11559.111262: load_balance: NEWIDLE rq:4 locked - aborting
<...>-22133 [002] d...1.. 11559.111263: load_balance: NEWIDLE rq:4 locked - aborting
kworker/6:1-22213 [006] d...1.. 11559.111263: load_balance: NEWIDLE rq:4 locked - aborting

5/8 of a 128 rq box meeting like that is.. hopefully impossible :)

-Mike