RE: [RFC PATCH net-next 0/6] implement kthread based napi poll
From: David Laight <hidden>
Date: 2020-09-30 08:23:24
From: David Laight <hidden>
Date: 2020-09-30 08:23:24
From: Jakub Kicinski
Sent: 29 September 2020 22:49
...
Isn't the fundamental problem that scheduler works at ms scale while where we're talking about 100us at most? And AFAICT scheduler doesn't have a knob to adjust migration cost per process? :(
Have you tried setting the application processes to RT priorities? The scheduler tries very hard (maybe too hard) to avoid migrating RT processes. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)