Date: Wed, 31 May 2017 05:29:40 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 218894] Network dropouts on em(4) due to jumbo cluster failures Message-ID: <bug-218894-2472-MdeJVoPwKA@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-218894-2472@https.bugs.freebsd.org/bugzilla/> References: <bug-218894-2472@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D218894 Kaho Toshikazu <kaho@elam.kais.kyoto-u.ac.jp> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kaho@elam.kais.kyoto-u.ac.j | |p --- Comment #1 from Kaho Toshikazu <kaho@elam.kais.kyoto-u.ac.jp> --- Created attachment 183084 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D183084&action= =3Dedit a patch for jumbo frame and others I don't have a trouble denied some packets temporarily but a trouble dropped many packets with jumbo frames. I use 12-current with a similar patch attac= hed this comment, and the patch does not make everything correct but makes better condition. I have three devices, 82574L, I217-V, I218-V. I don't have any trouble for I21[78] regardless with or without the patch when mtu is 1500. With 9k jumbo, without the patch, scp speed is very slow and dev.em.0.rx_overruns increases. On 82574L, dev.em.0.rx_overruns increases without the patch and dev.em.0.mac_stats.recv_no_buff increases with the patch. Above 6k jumbo, scp speed is almost 10kB/s without the patch and the speed is about 10MB/s with the patch. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-218894-2472-MdeJVoPwKA>