lkml.org 
[lkml]   [2018]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH net-next 0/3] vhost: accelerate metadata access through vmap()
Date
Hi:

This series tries to access virtqueue metadata through kernel virtual
address instead of copy_user() friends since they had too much
overheads like checks, spec barriers or even hardware feature
toggling.

Test shows about 24% improvement on TX PPS. It should benefit other
cases as well.

Please review

Jason Wang (3):
vhost: generalize adding used elem
vhost: fine grain userspace memory accessors
vhost: access vq metadata through kernel virtual address

drivers/vhost/vhost.c | 281 ++++++++++++++++++++++++++++++++++++++----
drivers/vhost/vhost.h | 11 ++
2 files changed, 266 insertions(+), 26 deletions(-)

--
2.17.1

\
 
 \ /
  Last update: 2018-12-13 11:11    [W:0.178 / U:0.188 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site