Go Back   DaemonForums > DaemonForums.org > News

News News regarding BSD and related.

Thread Tools Display Modes
  #1   (View Single Post)  
Old 20th April 2011
J65nko J65nko is offline
Join Date: May 2008
Location: Budel - the Netherlands
Posts: 3,596
Default Significant speedups in disk and network I/O

From a mail message from Theo de Raadt to the OpenBSD tech mailing list:

In the last two weeks we have commited a few things which significantly
speed up disk and network io. i will mention two things.

some of you can start cranking the kern.bufcachepercent sysctl to 90.
try it out. be impressed, but don't report deadlocks or lockups;
however real crashes are worth knowing about. the lockup situations
are largely understood and will be slowly worked out, which is why
this is not close to being the default.

the other change is that interrupt servicing times have gone down
substantially. there are some broken drivers we will need to find
and fix, so please watch your vmstat -i numbers carefully, and for
this circumstance, if you get machine lockups at boot please report
those very carefully in a PR (with an old working dmesg).

You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Can I mount AIX disk in NetBSD? sami NetBSD General 2 24th June 2009 05:08 PM
Disk > 100% Weaseal FreeBSD General 3 11th February 2009 05:50 PM
Disk geometry for Seagate disk phreud FreeBSD Installation and Upgrading 5 8th November 2008 10:51 PM
Disk I/O Throughput m4rc OpenBSD General 5 10th July 2008 02:50 AM
You mount the floppy disk this way. robbak Guides 0 1st May 2008 06:43 AM

All times are GMT. The time now is 08:59 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Content copyright © 2007-2010, the authors
Daemon image copyright ©1988, Marshall Kirk McKusick