Date: Wed, 05 Sep 2018 12:14:13 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 231166] 11.1->11.2 Update brings em network link state flapping Message-ID: <bug-231166-227-DpTu5HbtR7@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-231166-227@https.bugs.freebsd.org/bugzilla/> References: <bug-231166-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231166 --- Comment #2 from Compri <tomek@compri.pl> --- from intel manual, try this: Important system configuration changes: --------------------------------------- When there is a choice run on a 64bit OS rather than 32, it makes a significant difference in improvement. The interface can generate high number of interrupts. To avoid running into the limit set by the kernel, adjust hw.intr_storm_threshold setting using sysctl: sysctl hw.intr_storm_threshold=9000 (the default is 1000) For this change to take effect on boot, edit /etc/sysctl.conf and add the line: hw.intr_storm_threshold=9000 If you still see Interrupt Storm detected messages, increase the limit to a higher number. Best throughput results are seen with a large MTU; use 9000 if possible. -- You are receiving this mail because: You are the assignee for the bug.
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