From: Marco Elver > Sent: 21 May 2021 09:32 > > Since wait_event() uses TASK_UNINTERRUPTIBLE by default, waiting for an > allocation counts towards load. However, for KFENCE, this does not make > any sense, since there is no busy work we're awaiting. > > Instead, use TASK_IDLE via wait_event_idle() to not count towards load. Doesn't that let the process be interruptible by a signal. Which is probably not desirable. There really ought to be a way of sleeping with TASK_UNINTERRUPTIBLE without changing the load-average. IIRC the load-average is really intended to include processes that are waiting for disk - especially for swap. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
