Re: high interrupt load under 6.0?

2006-04-11 Thread David E. Cross 
Zuh, holy delayed reply.. but I figured for at least the sake of
web-search engines I should reply and say that this was indeed the fix.
Thank you.

-- 
David E. Cross
On Sat, 2006-02-18 at 15:05 -0500, Kris Kennaway wrote:
> On Sat, Feb 18, 2006 at 07:52:02PM +, David E. Cross wrote:
> > I have a 486DX50 firewall that has been serving me well for a number of
> > years.  I recently upgraded it fro 5.4 to 6.0 and performance plumeted
> > rather drastically (about 40%).  I would like to fix it.  What I have
> > noticed is that even when sitting idle the system spends ~20% of its
> > time in interrupt.  Below I have included dmesg, kernel config, and
> > vmstat -i information.
> 
> Try turning HZ=1000 back down to HZ=100.
> 
> Kris

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Re: high interrupt load under 6.0?

2006-02-18 Thread Dan Nelson 
In the last episode (Feb 18), Wolfgang Zenker said:
> > I have a 486DX50 firewall that has been serving me well for a
> > number of years.  I recently upgraded it fro 5.4 to 6.0 and
> > performance plumeted rather drastically (about 40%).  I would like
> > to fix it.  What I have noticed is that even when sitting idle the
> > system spends ~20% of its time in interrupt.  Below I have included
> > dmesg, kernel config, and vmstat -i information.
> > [..]
> > interrupt  total   rate
> > irq0: clk  203894894   1000
> 
> a clock rate of 1000 Hz is probably to high for a 486 class cpu. You
> should add "options HZ=100" to your kernel config to get back to the
> 100 Hz that where default before 6.0

Or add kern.hz="100" to your /boot/loader.conf if you don't want to
rebuild your kernel.

-- 
Dan Nelson
[EMAIL PROTECTED]
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Re: high interrupt load under 6.0?

2006-02-18 Thread Wolfgang Zenker 
Hi,

> I have a 486DX50 firewall that has been serving me well for a number of
> years.  I recently upgraded it fro 5.4 to 6.0 and performance plumeted
> rather drastically (about 40%).  I would like to fix it.  What I have
> noticed is that even when sitting idle the system spends ~20% of its
> time in interrupt.  Below I have included dmesg, kernel config, and
> vmstat -i information.
> [..]
> interrupt  total   rate
> irq0: clk  203894894   1000

a clock rate of 1000 Hz is probably to high for a 486 class cpu.
You should add "options HZ=100" to your kernel config to get back
to the 100 Hz that where default before 6.0

Wolfgang
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Re: high interrupt load under 6.0?

2006-02-18 Thread Kris Kennaway 
On Sat, Feb 18, 2006 at 07:52:02PM +, David E. Cross wrote:
> I have a 486DX50 firewall that has been serving me well for a number of
> years.  I recently upgraded it fro 5.4 to 6.0 and performance plumeted
> rather drastically (about 40%).  I would like to fix it.  What I have
> noticed is that even when sitting idle the system spends ~20% of its
> time in interrupt.  Below I have included dmesg, kernel config, and
> vmstat -i information.

Try turning HZ=1000 back down to HZ=100.

Kris


pgpwE07hnlmlP.pgp
Description: PGP signature

high interrupt load under 6.0?

2006-02-18 Thread David E. Cross 
I have a 486DX50 firewall that has been serving me well for a number of
years.  I recently upgraded it fro 5.4 to 6.0 and performance plumeted
rather drastically (about 40%).  I would like to fix it.  What I have
noticed is that even when sitting idle the system spends ~20% of its
time in interrupt.  Below I have included dmesg, kernel config, and
vmstat -i information.

Copyright (c) 1992-2005 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights
reserved.
FreeBSD 6.0-RELEASE-p4 #0: Thu Feb 16 09:42:52 UTC 2006
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/PHOENIX
WARNING: debug.mpsafenet forced to 0 as ipsec requires Giant
WARNING: MPSAFE network stack disabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: i486DX (486-class CPU)
real memory  = 33554432 (32 MB)
avail memory = 27672576 (26 MB)
npx0: [FAST]
npx0:  on motherboard
npx0: INT 16 interface
cpu0 on motherboard
isa0:  on motherboard
orm0:  at iomem 0xc-0xc7fff,0xdc000-0xd on isa0
aha0 at port 0x330-0x333 irq 15 drq 6 on isa0
aha0: AHA-1540/1542 64 head BIOS FW Rev. 0.8 (ID=41) SCSI Host Adapter,
SCSI ID 7, 16 CCBs
aha0: [GIANT-LOCKED]
ep0: <3Com 3C509-Combo EtherLink III> at port 0x310-0x31f irq 10 on isa0
ep0: Ethernet address: 00:20:af:11:11:11
ep0: [GIANT-LOCKED]
ep1: <3Com 3C509-TPO EtherLink III> at port 0x320-0x32f irq 11 on isa0
ep1: Ethernet address: 00:20:af:22:22:22
ep1: [GIANT-LOCKED]
ep2: <3Com 3C509-TPO EtherLink III> at port 0x340-0x34f irq 12 on isa0
ep2: Ethernet address: 00:20:af:33:33:33
ep2: [GIANT-LOCKED]
ata0 at port 0x1f0-0x1f7,0x3f6 irq 14 on isa0
fdc0:  at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2
on isa0fdc0: [FAST]
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16450, console
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16450
sio2 at port 0x3e8-0x3ef irq 5 on isa0
sio2: type 16550A
sio3 at port 0x2e8-0x2ef irq 9 on isa0
sio3: type 16550A
sbc0:  at port 0x220-0x22f,0x300-0x301,0x388-0x38b
irq 7 drq 0,5 on isa0
sbc0: [GIANT-LOCKED]
pcm0:  on sbc0
pcm0: [GIANT-LOCKED]
Timecounters tick every 1.000 msec
IPv6 packet filtering initialized, unlimited logging
IPsec: Initialized Security Association Processing.
ipfw2 (+ipv6) initialized, divert loadable, rule-based forwarding
disabled, default to deny, logging unlimited
Waiting 5 seconds for SCSI devices to settle
acd0: CDROM  at ata0-master PIO3
da0 at aha0 bus 0 target 0 lun 0
da0:  Fixed Direct Access SCSI-2 device
da0: 5.000MB/s transfers (5.000MHz, offset 7)
da0: 2063MB (4226725 512 byte sectors: 64H 32S/T 2063C)
Trying to mount root from ufs:/dev/da0s1a

interrupt  total   rate
irq0: clk  203894894   1000
irq4: sio0 12447  0
irq5: sio2   4569524 22
irq6: fdc0 1  0
irq7: sbc0 1  0
irq8: rtc   26091825127
irq10: ep0   3392620 16
irq11: ep1109748  0
irq12: ep2 63506  0
irq13: npx01  0
irq14: ata0   75  0
irq15: aha0   102475  0
Total  238237117   1168

machine i386
cpu I486_CPU
ident   PHOENIX

#makeoptionsDEBUG=-g# Build kernel with gdb(1) debug
symbols
#optionsSCHED_ULE   # ULE scheduler
options INCLUDE_CONFIG_FILE
options SCHED_4BSD  # 4BSD scheduler
options PREEMPTION  # Enable kernel thread
preemption
options INET# InterNETworking
options INET6   # IPv6 communications protocols
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates
support
options UFS_ACL # Support for access control
lists
options UFS_DIRHASH # Improve performance on big
directoriesoptions NFSCLIENT   # Network Filesystem
Client
options CD9660  # ISO 9660 Filesystem
options PROCFS  # Process filesystem (requires
PSEUDOFS)options PSEUDOFS# Pseudo-filesystem
framework
options GEOM_GPT# GUID Partition Tables.
options COMPAT_43   # Compatible with BSD 4.3 [KEEP
THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options COMPAT_FREEBSD5 # Compatible with FreeBSD5
options SCSI_DELAY=5000 # Delay (in ms) before probing
SCSI
options KTRACE  # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
options S