lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sun, 10 Jan 2021 19:35:25 +0900 From: Vincent Mailhol <mailhol.vincent@...adoo.fr> To: Marc Kleine-Budde <mkl@...gutronix.de>, linux-can@...r.kernel.org Cc: Vincent Mailhol <mailhol.vincent@...adoo.fr>, Wolfgang Grandegger <wg@...ndegger.com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org (open list:NETWORKING DRIVERS), linux-kernel@...r.kernel.org (open list) Subject: [PATCH 0/1] Add software TX timestamps to the CAN devices With the ongoing work to add BQL to Socket CAN, I figured out that it would be nice to have an easy way to mesure the latency. And one easy way to do so it to check the round trip time of the packet by doing the difference between the software rx timestamp and the software tx timestamp. rx timestamps are already available. This patch gives the missing piece: add a tx software timestamp feature to the CAN devices. Of course, the tx software timestamp might also be used for other purposes such as performance measurements of the different queuing disciplines (e.g. by checking the difference between the kernel tx software timestamp and the userland tx software timestamp). Vincent Mailhol (1): can: dev: add software tx timestamps drivers/net/can/dev.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.26.2
Powered by blists - more mailing lists