Date: Wed, 6 Nov 2013 15:08:02 +0400 From: Pavel Timofeev <timp87@gmail.com> To: Julian Elischer <julian@freebsd.org> Cc: "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org> Subject: Re: Hyper-V Message-ID: <CAAoTqfsJU6tMB4Z96QEOA_57DfDkzDxBztF1uZ%2BpMOd3WjGC2Q@mail.gmail.com> In-Reply-To: <CAAoTqfsJMo2yMk_R7ABHeeJeYh12BUqS_%2BPkM50DbC=tYe9dgA@mail.gmail.com> References: <CAAoTqfvRtR7MYL=wTeHdZ6%2BToveP=4BfhLmEpFyvuA7HX79qpQ@mail.gmail.com> <52794AB7.80600@freebsd.org> <CAAoTqfsJMo2yMk_R7ABHeeJeYh12BUqS_%2BPkM50DbC=tYe9dgA@mail.gmail.com>
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Does anybody know how to disable Hyper-v time syncing it guest FreeBSD OS? I'd like to try this one. 2013/11/6 Pavel Timofeev <timp87@gmail.com>: > Thank you very much! > I started to dig, and found that I can reboot my server running under > Hyper-V by doing 'sysctl -a'. > Can anybody confirm same behavoiur? > > FreeBSD 10.0-BETA3, Win 2012 Datacenter > > 2013/11/5 Julian Elischer <julian@freebsd.org>: >> On 11/4/13, 11:13 PM, Pavel Timofeev wrote: >>> >>> Hi! I upgraded to 10.0-BETA3 but still see messages like >>> >>> Tue Nov 5 11:09:05 MSK 2013 >>> calcru: runtime went backwards from 1728 usec to 889 usec for pid 981 >>> (zabbix_server) >>> calcru: runtime went backwards from 1229 usec to 703 usec for pid 976 >>> (zabbix_server) >>> calcru: runtime went backwards from 1019 usec to 595 usec for pid 978 >>> (zabbix_server) >>> calcru: runtime went backwards from 3041 usec to 1611 usec for pid 969 >>> (zabbix_server) >>> calcru: runtime went backwards from 1078 usec to 595 usec for pid 975 >>> (zabbix_server) >>> calcru: runtime went backwards from 1114 usec to 617 usec for pid 980 >>> (zabbix_server) >>> calcru: runtime went backwards from 1086 usec to 602 usec for pid 977 >>> (zabbix_server) >>> calcru: runtime went backwards from 1195 usec to 782 usec for pid 970 >>> (zabbix_server) >>> calcru: runtime went backwards from 3206 usec to 2157 usec for pid 979 >>> (zabbix_server) >>> calcru: runtime went backwards from 2179 usec to 1542 usec for pid 972 >>> (zabbix_server) >>> calcru: runtime went backwards from 1833 usec to 927 usec for pid 1026 >>> (cron) >>> calcru: runtime went backwards from 1091 usec to 551 usec for pid 1022 >>> (sendmail) >>> calcru: runtime went backwards from 823 usec to 416 usec for pid 1022 >>> (sendmail) >>> calcru: runtime went backwards from 4691 usec to 2735 usec for pid >>> 1011 (sendmail) >>> calcru: runtime went backwards from 1162 usec to 587 usec for pid 1011 >>> (sendmail) >>> calcru: runtime went backwards from 947 usec to 478 usec for pid 1010 >>> (httpd) >>> calcru: runtime went backwards from 895 usec to 452 usec for pid 1009 >>> (httpd) >>> calcru: runtime went backwards from 954 usec to 482 usec for pid 1008 >>> (httpd) >>> calcru: runtime went backwards from 909 usec to 459 usec for pid 1007 >>> (httpd) >>> calcru: runtime went backwards from 1214 usec to 653 usec for pid 1006 >>> (httpd) >>> calcru: runtime went backwards from 201793 usec to 102672 usec for pid >>> 996 (httpd) >>> calcru: runtime went backwards from 1105 usec to 1064 usec for pid 991 >>> (sshd) >>> calcru: runtime went backwards from 45196 usec to 23221 usec for pid >>> 974 (zabbix_server) >>> calcru: runtime went backwards from 2192 usec to 1436 usec for pid 973 >>> (zabbix_server) >>> calcru: runtime went backwards from 605 usec to 306 usec for pid 968 >>> (zabbix_server) >>> calcru: runtime went backwards from 626 usec to 316 usec for pid 967 >>> (zabbix_server) >>> calcru: runtime went backwards from 773 usec to 391 usec for pid 966 >>> (zabbix_server) >>> calcru: runtime went backwards from 663 usec to 335 usec for pid 965 >>> (zabbix_server) >>> calcru: runtime went backwards from 799 usec to 404 usec for pid 964 >>> (zabbix_server) >>> calcru: runtime went backwards from 37723 usec to 19422 usec for pid >>> 963 (zabbix_server) >>> calcru: runtime went backwards from 49425 usec to 26265 usec for pid >>> 962 (zabbix_server) >>> calcru: runtime went backwards from 38883 usec to 20993 usec for pid >>> 961 (zabbix_server) >>> calcru: runtime went backwards from 53478 usec to 27411 usec for pid >>> 960 (zabbix_server) >>> calcru: runtime went backwards from 40845 usec to 21750 usec for pid >>> 959 (zabbix_server) >>> calcru: runtime went backwards from 47835 usec to 24455 usec for pid >>> 958 (zabbix_server) >>> calcru: runtime went backwards from 2257 usec to 1612 usec for pid 957 >>> (zabbix_server) >>> calcru: runtime went backwards from 2361 usec to 1193 usec for pid 932 >>> (zabbix_agentd) >>> calcru: runtime went backwards from 32053 usec to 16204 usec for pid >>> 928 (zabbix_server) >>> calcru: runtime went backwards from 32517 usec to 19280 usec for pid 697 >>> (sh) >>> calcru: runtime went backwards from 1128021 usec to 868022 usec for pid >>> 697 (sh) >>> calcru: runtime went backwards from 9609 usec to 5601 usec for pid 601 >>> (syslogd) >>> calcru: runtime went backwards from 688 usec to 348 usec for pid 106 >>> (adjkerntz) >>> calcru: runtime went backwards from 12 usec to 6 usec for pid 3 >>> (sctp_iterator) >>> calcru: runtime went backwards from 5467 usec to 2853 usec for pid 2 >>> (fdc0) >>> calcru: runtime went backwards from 11306 usec to 8408 usec for pid 14 >>> (rand_harvestq) >>> calcru: runtime went backwards from 136242 usec to 76230 usec for pid 13 >>> (geom) >>> calcru: runtime went backwards from 156117 usec to 118882 usec for pid 12 >>> (intr) >>> calcru: runtime went backwards from 7820 usec to 4847 usec for pid 1 >>> (init) >>> calcru: runtime went backwards from 2340313 usec to 1226503 usec for >>> pid 1 (init) >>> calcru: runtime went backwards from 4114 usec to 2164 usec for pid 0 >>> (kernel) >>> >>> >>> Is it bad? Or I have to ignore them? >> >> >> I'm not talking authoratatively but in some virtualization systems, if the >> TSCs on the various processors are not sufficiently synchronized, then when >> the hypervisor switches you from one CPU to another, you can get odd >> (sometimes negative) time readings which give messages like this.. >> >>> _______________________________________________ >>> freebsd-virtualization@freebsd.org mailing list >>> http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization >>> To unsubscribe, send any mail to >>> "freebsd-virtualization-unsubscribe@freebsd.org" >>> >>> >>
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