netdev - Re: TSQ accounting skb->truesize degrades throughput for large packets

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

Date:	Mon, 9 Sep 2013 05:28:50 +0000 (UTC)
From:	Cong Wang <xiyou.wangcong@...il.com>
To:	netdev@...r.kernel.org
Subject: Re: TSQ accounting skb->truesize degrades throughput for large
 packets

On Fri, 06 Sep 2013 at 17:00 GMT, Eric Dumazet <eric.dumazet@...il.com> wrote:
> On Fri, 2013-09-06 at 17:36 +0100, Zoltan Kiss wrote:
>
>> So I guess it would be good to revisit the default value of this 
>> setting.
>
> If ixgbe requires 3 TSO packets in TX ring to get line rate, you also
> can tweak dev->gso_max_size from 65535 to 64000.
>

We observe similar regression on ixgbe driver, also virtio_net driver.


--
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