Date: Sat, 27 Apr 2002 18:34:58 -0400 From: Yaoping Ruan <yruan@cs.princeton.edu> To: freebsd-questions@FreeBSD.ORG Subject: FreeBSD4.5 kernel hang up & cputime limit exceeded Message-ID: <3CCB2792.FA96FDB0@cs.princeton.edu>
next in thread | raw e-mail | index | archive | help
Greeting: Recently I did an http server performance test on FreeBSD4.5 and met kernel hang problem. The simultaneous connections I had were not too high, at most 100 connections. But some requests do need disk activity and transfer large files (500 - 900K). It happened especially doing large file requests even when no disk access was involved. Here's more information about hardware: Intel Giganet ethernet network adaptor Intel SBT2 SMP motherboard (but I didn't use FreeBSD for SMP) Pentium III Xeon Processor 1 GHz Promise Ultra DMA 66 disk controller (for IDE disk) 1 GB memory And I configured the /boot/loader.conf with: kern.ipc.maxsockets="131072" kern.ipc.nmbclusters="40960" kern.ipc.nmbufs="81920" net.inet.tcp.tcbhashsize="32768" net.inet.tcp.delayed_ack="0" A few days ago, I changed numbclusters="20480" nmbufs="40960" this time, kernel hang didn't happen but I was told "cputime limit exceeded" after couple of hours' test. While "limit" command shows CPUtime is unlimited. Confused. And advise? Thanks - Randy 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?3CCB2792.FA96FDB0>