On 2013 Jan 03 (Thu) at 14:49:35 +0100 (+0100), Loïc Blot wrote: :Hello, :Since this morning is get a high uptime value for server load, but the :server does nothing. It's our CARP backup gateway for our clients, and :it stays in backup mode since few month. : :The CPU does nothing special, the gateway is waiting failover, the :memory isn't used (3G/16G Ram), and disk IO are normal. :
Not true. :Here is my systat output: : : :++++++++++++++++++++++++ : 1 users Load 21.49 21.47 21.21 Thu Jan 3 :14:45:36 2013 : : memory totals (in KB) PAGING SWAPPING :Interrupts : real virtual free in out in out 2595 :total :Active 1987252 1987252 13376804 ops 398 :clock :All 2862376 2862376 30156692 pages 1714 :ipi : :acpi0 :Proc:r d s w Csw Trp Sys Int Sof Flt forks 408 :mfi0 : 23 11 2993 116 4839 481 251 80 fkppw 26 ^^ You have 23 processes waiting on disk IO. This is what is causing the load. :em0 : fksvm 49 :em1 : 0.2%Int 1.4%Sys 0.2%Usr 0.0%Nic 98.2%Idle pwait :ehci0 :| | | | | | | | | | | relck :ehci1 := rlkok :ahci0 : noram :Namei Sys-cache Proc-cache No-cache 3 ndcpy : Calls hits % hits % miss % fltcp : 7722 6252 81 1157 15 5 zfod : cow :Disks sd0 cd0 135326 fmin :seeks 180434 ftarg :xfers 407 itarg :speed 11M 4 wired : sec 1.0 pdfre : pdscn : pzidle : 17 kmapent : : 162 :IPKTS : 56 :OPKTS :+++++++++++++++++++++++ : :Do you have any idea why uptime usage is so high ? : :Thanks for advance : :-- :Best regards, : : :Lo??c BLOT, Engineering :UNIX Systems, Security and Networks :http://www.unix-experience.fr : -- Know what I hate most? Rhetorical questions. -- Henry N. Camp