From 4d2bec28fd2c6e9d3690c2fd9154d8f6b757e856 Mon Sep 17 00:00:00 2001 From: schweikh Date: Sun, 6 Jun 2004 12:30:21 +0000 Subject: s/disklabel/bsdlabel/g Removed paragraph about "new experimental feature" the hw.ata.tags which sysctl -a knows nothing about. Fix typos while I'm here. PR: docs/66493 Submitted by: Julien Gabel --- share/man/man7/tuning.7 | 20 ++++---------------- 1 file changed, 4 insertions(+), 16 deletions(-) (limited to 'share/man/man7/tuning.7') diff --git a/share/man/man7/tuning.7 b/share/man/man7/tuning.7 index 0489558..f8ef784 100644 --- a/share/man/man7/tuning.7 +++ b/share/man/man7/tuning.7 @@ -12,7 +12,7 @@ .Nd performance tuning under FreeBSD .Sh SYSTEM SETUP - DISKLABEL, NEWFS, TUNEFS, SWAP When using -.Xr disklabel 8 +.Xr bsdlabel 8 or .Xr sysinstall 8 to lay out your file systems on a hard disk it is important to remember @@ -442,7 +442,7 @@ Note that setting too high a value bad clustering performance. Do not set this value arbitrarily high! Also, -higher write queueing values may add latency to reads occuring at the same +higher write queueing values may add latency to reads occurring at the same time. .Pp There are various other buffer-cache and VM page cache related sysctls. @@ -857,18 +857,6 @@ loader tunable to 1. More information on tuning the ATA driver system may be found in the .Xr ata 4 man page. -.Pp -There is a new experimental feature for IDE hard drives called -.Va hw.ata.tags -(you also set this in the boot loader) which allows write caching to be safely -turned on. -This brings SCSI tagging features to IDE drives. -As of this -writing only IBM DPTA and DTLA drives support the feature. -Warning! -These -drives apparently have quality control problems and I do not recommend -purchasing them at this time. If you need performance, go with SCSI. .Sh CPU, MEMORY, DISK, NETWORK The type of tuning you do depends heavily on where your system begins to @@ -898,7 +886,7 @@ The first line of defense for improving network performance is to make sure you are using switches instead of hubs, especially these days where switches are almost as cheap. Hubs -have severe problems under heavy loads due to collision backoff and one bad +have severe problems under heavy loads due to collision back-off and one bad host can severely degrade the entire LAN. Second, optimize the network path as much as possible. @@ -932,9 +920,9 @@ over services you export from your box (web services, email). .Xr hier 7 , .Xr ports 7 , .Xr boot 8 , +.Xr bsdlabel 8 , .Xr ccdconfig 8 , .Xr config 8 , -.Xr disklabel 8 , .Xr fsck 8 , .Xr ifconfig 8 , .Xr ipfw 8 , -- cgit v1.1