lkml.org 
[lkml]   [2023]   [Feb]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH net] udp: fix memory schedule error
From
Date
On Tue, 2023-02-21 at 19:03 +0800, Jason Xing wrote:
> From: Jason Xing <kernelxing@tencent.com>
>
> Quoting from the commit 7c80b038d23e ("net: fix sk_wmem_schedule()
> and sk_rmem_schedule() errors"):
>
> "If sk->sk_forward_alloc is 150000, and we need to schedule 150001 bytes,
> we want to allocate 1 byte more (rounded up to one page),
> instead of 150001"

I'm wondering if this would cause measurable (even small) performance
regression? Specifically under high packet rate, with BH and user-space
processing happening on different CPUs.

Could you please provide the relevant performance figures?

Thanks!

Paolo

\
 
 \ /
  Last update: 2023-03-27 00:30    [W:0.126 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site