Re: [PATCH net-next] net-rfs: fix false sharing accessing sd->input_queue_head

2016-04-26 Thread David Miller
From: Eric Dumazet Date: Tue, 26 Apr 2016 15:30:07 -0700 > From: Eric Dumazet > > sd->input_queue_head is incremented for each processed packet > in process_backlog(), and read from other cpus performing > Out Of Order avoidance in get_rps_cpu() > > Moving this field in a separate cache line k

Re: [PATCH net-next] net-rfs: fix false sharing accessing sd->input_queue_head

2016-04-26 Thread Tom Herbert
On Tue, Apr 26, 2016 at 3:30 PM, Eric Dumazet wrote: > From: Eric Dumazet > > sd->input_queue_head is incremented for each processed packet > in process_backlog(), and read from other cpus performing > Out Of Order avoidance in get_rps_cpu() > > Moving this field in a separate cache line keeps it