On Thu, Oct 10, 2013 at 8:07 AM, Sahid Ferdjaoui <sahid.ferdja...@cloudwatt.com> wrote: > Ok, does it means the server can handle more connections?
In 1.11, there is kernel wildcarding for flows. So if you are using OVS as a simple mac learning switch, then flows with different TCP ports are not treated as separate flows but rather a single flow. So, a single flow in kernel will be good enough to handle all your TCP connections. My answer is based on the assumption that you do not have openflow flows that want to look at every TCP port and do something about it. > > ----- Original Message ----- > From: "Gurucharan Shetty" <shet...@nicira.com> > To: "Sahid Ferdjaoui" <sahid.ferdja...@cloudwatt.com> > Cc: "discuss" <discuss@openvswitch.org> > Sent: Thursday, October 10, 2013 4:46:34 PM > Subject: Re: [ovs-discuss] Tune for large number of connections... > > On Thu, Oct 10, 2013 at 2:00 AM, Sahid Ferdjaoui > <sahid.ferdja...@cloudwatt.com> wrote: >> Hello all, >> >> I have a vm1 (server) on a hostA uses ovs and some other vmX (client) on >> hostB or hostC... >> >> When the number of connections go up than about 53000 connections (socket >> tcp) I get a lot of errors: >> The deal is that, there are enough memory and cpu and if I try a test >> without ovs (I mean with a physical network) I can easily go up this limit. >> >> version: 1.10.1 > 1.11 shouldn't show these issues. >> >> do you have an idea for me? >> Thanks a lot >> s. >> >> 2013-10-10T08:55:10Z|00475|dpif_linux|WARN|system@ovs-system: lost packet on >> channel 9 (last polled 0 ms ago) >> 2013-10-10T08:55:11Z|00476|dpif_linux|WARN|system@ovs-system: lost packet on >> channel 9 (last polled 0 ms ago) >> 2013-10-10T08:55:11Z|00477|ofproto_dpif_governor|INFO|br-int: processed >> 32768 packets in 0.43 s, enlarging hash table to 256 kB (46522 hashes, 260 >> setups, 0 shortcuts) >> 2013-10-10T08:55:20Z|00478|ofproto_dpif_governor|INFO|br-int: processed >> 34824 packets in 5.00 s, shrinking hash table to 128 kB (45536 hashes, 1059 >> setups, 0 shortcuts) >> 2013-10-10T08:55:20Z|00479|dpif_linux|WARN|system@ovs-system: lost packet on >> channel 9 (last polled 0 ms ago) >> 2013-10-10T08:55:21Z|00480|ofproto_dpif_governor|INFO|br-int: processed >> 32768 packets in 0.53 s, enlarging hash table to 256 kB (43473 hashes, 537 >> setups, 0 shortcuts) >> 2013-10-10T08:55:21Z|00481|dpif_linux|WARN|system@ovs-system: lost packet on >> channel 9 (last polled 0 ms ago) >> 2013-10-10T08:55:21Z|00482|dpif_linux|WARN|system@ovs-system: lost packet on >> channel 9 (last polled 0 ms ago) >> 2013-10-10T08:55:22Z|00483|poll_loop|WARN|Dropped 26318 log messages in last >> 59907 seconds (most recently, 59904 seconds ago) due to excessive rate >> 2013-10-10T08:55:22Z|00484|poll_loop|WARN|Dropped 3 log messages in last >> 59919 seconds (most recently, 59907 seconds ago) due to excessive rate >> 2013-10-10T08:55:22Z|00485|poll_loop|WARN|wakeup due to 0-ms timeout at >> ../ofproto/ofproto-dpif.c:1174 (51% CPU usage) >> 2013-10-10T08:55:22Z|00486|poll_loop|WARN|wakeup due to [POLLIN] on fd 19 >> (unknown anon_inode:[eventpoll]) at ../lib/dpif-linux.c:1363 (51% CPU usage) >> 2013-10-10T08:55:22Z|00487|poll_loop|WARN|wakeup due to [POLLIN] on fd 19 >> (unknown anon_inode:[eventpoll]) at ../lib/dpif-linux.c:1363 (51% CPU usage) >> 2013-10-10T08:55:22Z|00488|poll_loop|WARN|wakeup due to [POLLIN] on fd 19 >> (unknown anon_inode:[eventpoll]) at ../lib/dpif-linux.c:1363 (51% CPU usage) >> 2013-10-10T08:55:22Z|00489|poll_loop|WARN|wakeup due to [POLLIN] on fd 19 >> (unknown anon_inode:[eventpoll]) at ../lib/dpif-linux.c:1363 (51% CPU usage) >> 2013-10-10T08:55:22Z|00490|poll_loop|WARN|wakeup due to [POLLIN] on fd 19 >> (unknown anon_inode:[eventpoll]) at ../lib/dpif-linux.c:1363 (51% CPU usage) >> 2013-10-10T08:55:22Z|00491|poll_loop|WARN|wakeup due to [POLLIN] on fd 19 >> (unknown anon_inode:[eventpoll]) at ../lib/dpif-linux.c:1363 (51% CPU usage) >> 2013-10-10T08:55:22Z|00492|poll_loop|WARN|wakeup due to [POLLIN] on fd 19 >> (unknown anon_inode:[eventpoll]) at ../lib/dpif-linux.c:1363 (51% CPU usage) >> 2013-10-10T08:55:22Z|00493|poll_loop|WARN|wakeup due to [POLLIN] on fd 19 >> (unknown anon_inode:[eventpoll]) at ../lib/dpif-linux.c:1363 (51% CPU usage) >> 2013-10-10T08:55:22Z|00494|poll_loop|WARN|wakeup due to [POLLIN] on fd 19 >> (unknown anon_inode:[eventpoll]) at ../lib/dpif-linux.c:1363 (51% CPU usage) >> 2013-10-10T08:55:28Z|00495|ofproto_dpif_governor|INFO|br-int: processed >> 57094 packets in 5.00 s, shrinking hash table to 128 kB (49357 hashes, 3265 >> setups, 0 shortcuts) >> 2013-10-10T08:55:31Z|00496|dpif_linux|WARN|system@ovs-system: lost packet on >> channel 9 (last polled 0 ms ago) >> 2013-10-10T08:55:31Z|00497|ofproto_dpif_governor|INFO|br-int: processed >> 32768 packets in 0.43 s, enlarging hash table to 256 kB (45883 hashes, 837 >> setups, 0 shortcuts) >> ... >> >> >> >> >> _______________________________________________ >> discuss mailing list >> discuss@openvswitch.org >> http://openvswitch.org/mailman/listinfo/discuss _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
