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, 09 Mar 2014 18:31:54 -0400 (EDT) From: David Miller <davem@...emloft.net> To: eric.dumazet@...il.com Cc: v.mingchen@...il.com, netdev@...r.kernel.org, ezk@....cs.sunysb.edu, dhildeb@...ibm.com, geoff@...hmc.edu Subject: Re: [BUG?] ixgbe: only num_online_cpus() of the tx queues are enabled From: Eric Dumazet <eric.dumazet@...il.com> Date: Sun, 09 Mar 2014 06:39:46 -0700 > On Sun, 2014-03-09 at 01:47 -0500, Ming Chen wrote: > >> Thanks for the patch. I forgot to mention that excessively big cwnd >> (or bufferbloat) does play a part in Hash-Cast. We found that using >> TCP Vegas does not show unfairness even in the presence of hash >> collision among TCP flows. Comparing Vegas and Cubic, we found that >> Vegas has a much smaller cwnd. > > Of course, Vegas is delay based. It does not need to increase cwnd to > insane values. > > Problem is it does not compete well in presence of non Vegas flows. > > And unfortunately, Internet is filled by non Vegas flows. Vegas also does not respond quickly enough to sudden increases in available bandwidth. -- 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
Powered by blists - more mailing lists