Hi Andrey, We haven't seen this in our in house testing so I have a few questions:
- Where is the system your pinging, connected back to back to eliminate other network latency? - What is your interrupt spread looking like when you do both of these tests (cat /proc/interrupts)? - Is irqbalance running or did you run set_irq_affinity.sh? - Anything interesting in the NIC's statics (ethtool -s) or in the syslog Thanks, -Don Skidmore <donald.c.skidm...@intel.com> -----Original Message----- From: Андрей Василишин [mailto:a.vasilis...@kpi.ua] Sent: Saturday, October 27, 2012 4:12 PM To: e1000-devel@lists.sourceforge.net Subject: Re: [E1000-devel] 100+ ms latency when 82599EB put under moderate load Hello! I have had the same problem with X520-Lr1 card root@s4:~# ping ya.ru PING ya.ru (213.180.204.3) 56(84) bytes of data. 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=1 ttl=59 time=2.44 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=2 ttl=59 time=113 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=3 ttl=59 time=311 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=4 ttl=59 time=137 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=5 ttl=59 time=264 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=6 ttl=59 time=48.3 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=7 ttl=59 time=143 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=8 ttl=59 time=3.53 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=9 ttl=59 time=26.4 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=10 ttl=59 time=63.1 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=11 ttl=59 time=260 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=12 ttl=59 time=109 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=13 ttl=59 time=363 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=14 ttl=59 time=6.53 ms there was 24 queues (2xE5645 with HT). I just compiled latest module v3.11.33, but it didn't help. I have one server with the same card yet, but there are 2xE5620 with HT off (8 queues) and it working fine. I just added options ixgbe RSS=8 DCA=2 LLIPort=80 allow_unsupported_sfp=1 in /etc/modprobe.d/aliases-m-i-t.conf (Debian) and now: root@s4:~# ping ya.ru PING ya.ru (213.180.204.3) 56(84) bytes of data. 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=1 ttl=59 time=2.13 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=2 ttl=59 time=2.37 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=3 ttl=59 time=2.21 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=4 ttl=59 time=2.41 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=5 ttl=59 time=2.41 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=6 ttl=59 time=2.54 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=7 ttl=59 time=2.56 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=8 ttl=59 time=2.09 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=9 ttl=59 time=2.09 ms 64 bytes from www.yandex.ru (213.180.204.3): icmp_req=10 ttl=59 time=2.19 ms RSS=8 helped me! -- WBR, Andrey Vasilishin CDIG1-UANIC, CDIG1-RIPE ------------------------------------------------------------------------------ WINDOWS 8 is here. Millions of people. Your app in 30 days. Visit The Windows 8 Center at Sourceforge for all your go to resources. http://windows8center.sourceforge.net/ join-generation-app-and-make-money-coding-fast/ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired ------------------------------------------------------------------------------ The Windows 8 Center - In partnership with Sourceforge Your idea - your app - 30 days. Get started! http://windows8center.sourceforge.net/ what-html-developers-need-to-know-about-coding-windows-8-metro-style-apps/ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
