Date: Tue, 2 Jan 2001 15:26:09 -0800 From: "David Schwartz" <davids@webmaster.com> To: <freebsd-questions@freebsd.org> Subject: Processes stuck in 'nbufbs', what should be tuned? Message-ID: <NCBBLIEPOCNJOAEKBEAKKEAFMMAA.davids@webmaster.com>
next in thread | raw e-mail | index | archive | help
One of my FreeBSD-stable machines (4.2-STABLE, Dec 12) seems to get into a state where its performance drops to near-zero. I've raised MAXUSERS and NMBCLUSTERS. According to 'netstat -m', it's not an mbuf issue. Swap isn't touched, so it's not a memory issue. But I do see some processes blocked in 'nbufbs'. I've tried to look at the code in vfs_bio.c to see what 'nbufbs' means, but I can't quite make sense of it. Is there something I should tune? If it helps, the machine is running multithreaded network servers (using the LinuxThreads port). The machine also has an AMI MegaRAID. DS To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?NCBBLIEPOCNJOAEKBEAKKEAFMMAA.davids>