[PATCH V5 0/2] copy to/in/from user optimization
catalin.marinas at arm.com
Tue Oct 6 08:37:49 PDT 2015
On Wed, Sep 23, 2015 at 11:55:37AM -0700, Feng Kan wrote:
> This coverts all copy in/from/to user file to use the copy template file.
> The copy template file is based on the memcpy.S. The first patch converts
> the memcpy to use the copy template as well. Overnight trinity test and
> 10G iperf was used to test correctness and performance. Noticeable
> iperf improvement (~30%) on the receive side.
> V5 Changes:
> 1. Switch patch ordering.
> 2. Simplify assembly code and use fixed large tags in marco
> 3. Fixed indentation issue.
> Feng Kan (2):
> arm64: Change memcpy in kernel to use the copy template file
> arm64: copy_to-from-in_user optimization using copy template
Queued for 4.4 (subject to passing my LTP testing). Thanks.
More information about the linux-arm-kernel