netdev - profile my proto

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 linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 12 Apr 2011 22:00:24 +0800
From:	zhou rui <zhourui.cn@...il.com>
To:	netdev@...r.kernel.org
Subject: profile my proto_hook.function

hi
I used a prot_hook(added via dev_add_pack,protocol=ETH_P_ALL) to
process packets in kernel part.but the performance was bad

ksoftirqd used almost 100% cpu on my 1G nic(intel e1000,w/o RSS) XEON
5400 hypertown machine.

looks my  packet processing is too slow. but how to profile this?
i.e. how many CPU resources used in softirq and normal kernel protocol
stack(tcp/ip,etc)
and how many used in my packet processing function?

and any idea to improve it?how about moving the processing function to driver?

thanks
rui
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html