On 03/22/2019 08:00 AM, kbuild test robot wrote:
> Hi Eric,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on net-next/master]
>
> url:
> https://github.com/0day-ci/linux/commits/Eric-Dumazet/tcp-add-rx-tx-cache-to-reduce-lock-contention/20190322-215506
> conf
Hi Eric,
I love your patch! Yet something to improve:
[auto build test ERROR on net-next/master]
url:
https://github.com/0day-ci/linux/commits/Eric-Dumazet/tcp-add-rx-tx-cache-to-reduce-lock-contention/20190322-215506
config: x86_64-randconfig-x016-201911 (attached as .config)
compiler: gcc-
Hi Eric,
I love your patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
url:
https://github.com/0day-ci/linux/commits/Eric-Dumazet/tcp-add-rx-tx-cache-to-reduce-lock-contention/20190322-215506
config: i386-randconfig-x005-201911 (attached as .config)
compiler:
Often times, recvmsg() system calls and BH handling for a particular
TCP socket are done on different cpus.
This means the incoming skb had to be allocated on a cpu,
but freed on another.
This incurs a high spinlock contention in slab layer for small rpc,
but also a high number of cache line ping
