Date: Thu, 12 Oct 2000 10:42:30 -0700 (PDT) From: wpaul@FreeBSD.ORG (Bill Paul) To: bright@wintelcom.net (Alfred Perlstein) Cc: behanna@zbzoom.net, stable@FreeBSD.ORG, KuriyaKK@cpf.navy.mil Subject: Re: xl driver again? Re: mbuf leakage on 4.1.1-STABLE Message-ID: <20001012174230.C471737B502@hub.freebsd.org> In-Reply-To: <20001012094914.F272@fw.wintelcom.net> from Alfred Perlstein at "Oct 12, 2000 09:49:15 am"
next in thread | previous in thread | raw e-mail | index | archive | help
The xl driver never holds more than 128 mbuf clusters in the receive ring. Whenever a new packet comes in, it sends one of the mbufs out and replaces it with a new one. IT DOESN'T HOLD ONTO THEM. It will however complain if it can't allocate a replacement mbuf. What it will do is allocate them very fast, and sometimes mbufs do get held inside the kernel for too long a time. It seems to be worse in cases where you have a lot of UDP traffic or a large number of open TCP connections. My only suggestion for now is to add more mbufs by bumping NMBCLUSTERS. -Bill To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20001012174230.C471737B502>