Date: Wed, 03 Aug 2005 13:54:16 +1000 From: Dave+Seddon <dave-sender-1932b5@seddon.ca> To: freebsd-net@freebsd.org Subject: Re: running out of mbufs? Message-ID: <1123041258.96004.TMDA@seddon.ca> In-Reply-To: <20050803035141.GC92364@hub.freebsd.org> References: <1123040973.95445.TMDA@seddon.ca> <20050803035141.GC92364@hub.freebsd.org>
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So as for the system losing all network connectivity, do you have any suggestions? regards, Dave Kris Kennaway writes: > On Wed, Aug 03, 2005 at 01:49:32PM +1000, Dave+Seddon wrote: >> Greetings, >> >> I'm trying to do some performance testing of a content filtering system, so >> I'm trying to get very high HTTP throughput. I've got 4 * HP DL380s with >> 3.4G Xeon processors (hyper threading) and 1 G RAM, 2 onboard BGEs, and 2 * >> 2 port EM. Using FreeBSD5.4-stable (as of 2005/08/02) and device polling, >> I've configured a large number (246) VLAN interfaces on two machines, and >> have apache on one box and siege on the other. Using 'siege -f >> /home/my_big_list_of_urls -c 50 --internet' one host does a large number of >> request from the other machine. I've been trying to tune for maximum >> performance and have been using lots of examples for /etc/sysctl.conf and so >> on from the web. Adjusting these settings and running the siege, I've found >> the apache server completely loses network connectivity when device polling >> is enabled. I've adjusted the HZ lots and found the system survives the >> longest set a 15000 (yes it seems very large doesn't it). The problem now >> seems to be that I'm running out of mbufs: >> >> -------------------------------------- >> 4294264419 mbufs in use >> 4294866740/2147483647 mbuf clusters in use (current/max) > > This is a FAQ..see the release errata. The short answer is that it's > not a real leak, only a leak in the stats. This is fixed in 7.0 and > might be fixed in 6.0-RELEASE. > > Kris > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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