lkml.org 
[lkml]   [2020]   [Jun]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [Patch v4 3/3] net: Restrict receive packets queuing to housekeeping CPUs
From
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 26 Jun 2020 13:14:01 +0200

> On Thu, Jun 25, 2020 at 06:34:43PM -0400, Nitesh Narayan Lal wrote:
>> From: Alex Belits <abelits@marvell.com>
>>
>> With the existing implementation of store_rps_map(), packets are queued
>> in the receive path on the backlog queues of other CPUs irrespective of
>> whether they are isolated or not. This could add a latency overhead to
>> any RT workload that is running on the same CPU.
>>
>> Ensure that store_rps_map() only uses available housekeeping CPUs for
>> storing the rps_map.
>>
>> Signed-off-by: Alex Belits <abelits@marvell.com>
>> Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
>
> Dave, ACK if I route this?

No problem:

Acked-by: David S. Miller <davem@davemloft.net>

\
 
 \ /
  Last update: 2020-06-26 19:21    [W:0.075 / U:0.476 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site