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void wrote:
Can you name one SMP OS implementation that uses an
interrupt threads approach that doesn't hit a scaling
wall at 4 (or fewer) CPUs, due to heavier weight thread
context switch overhead?
Solaris, if I remember my Vahalia book correctly (isn't that a favorite
of yours?).
Julian Elischer wrote:
Who is the expert on apache, modules and shlibs?
(I'll go offline to discuss the problem if I can find
an appropriate person.. (can't get ldap module to work with apache
under freebsd.)
Build Apache from your own sources, and not from ports.
You will also need to use
I'm developing some code running in kernel that use a lot of stack. And it
seems i run into stack overflow. This results in some proc structure
related parts overwrite (particulary p-p_stats-p_timer[ITIMER_PROF]) and
unexpected signals. (Otherwise, it usually page faults inside
Title: ¿¡µà»ç¶û ¸ÞÀÏ ¼Ò½ÄÁö
On Tue, Aug 07, 2001 at 09:33:20PM -0700, Brian O'Shea wrote:
Hello,
I am using a PIII 550MHz UP system running FreeBSD 4.1-RELEASE. It has
a 3c905B-TX Fast Etherlink XL card.
# ifconfig xl0
xl0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST mtu 1500
inet 10.34.24.62
This is system-specific. Typically, systems only clear memory on
cold-boot, but the behaviour is not standardised.
As far as I understand, this feature works only if the machine does not
clear its memory upon reboot. AT compatibles clear memory during the
BIOS POST, thus, we don't see
It is important for you to send plain-text messages to public lists.
In general a address in a process is just a linear address which refer to
physical address indirectly by page directory. This is reasonable in
user space. However is it necessary to do such thing in kernel? It is sure
to
Mike Smith wrote:
Terry; all this thinking you're doing is *really*bad*.
I appreciate that you believe you're trying to educate us somehow. But
what you're really doing right now is filling our list archives with
convincing-sounding crap. People that are curious about this issue are
This piece obviously has at least two errors. First, if PAM_OPT_AUTH_AS_SELF
is true, then value of user is undefined. It should probably log
pwd-pw_name instead. Second, check for root must of course be reversed
and become if (!pwd-pw_uid).
Fixed locally. Commit coming soon.
M
--
Mark
Brian O'Shea wrote:
On this machine I run a program which simulates many (~150) simultaneous
TCP clients. This is actually a multithreaded Linux binary, and one
thread per simulated TCP client is created. After a few seconds the
system runs out of mbuf clusters:
# netstat -m
craig wrote:
In general a address in a process is just a linear address which
refer to physical address indirectly by page directory.
Or a virtual address that does not have a physical page behind
it. Some kernel memory is swappable, and some is overcommitted,
and the pages backing the page
Hello,
why isn't PFIL_HOOKS kernel compile option listed in NOTES ? If it just
was forgotten, please add it. One trying to compile in ipfilter will get
confused I think.
Regards,
Eugene
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Weiguang SHI [EMAIL PROTECTED] writes:
From: Alfred Perlstein [EMAIL PROTECTED]
To: Jeff Behl [EMAIL PROTECTED]
CC: '[EMAIL PROTECTED]' [EMAIL PROTECTED]
Subject: Re: timing question
Date: Mon, 6 Aug 2001 14:49:55 -0500
* Jeff Behl [EMAIL PROTECTED] [010806 12:48] wrote:
please excuse
I found an article on livelock at
http://www.research.compaq.com/wrl/people/mogul/mogulpubsextern.html
Just go there and search for livelock.
But I don't agree with Terry about the interrupt-thread-is-bad
thing, because, if I read it correctly, the authors themself
implemented their ideas in
Any objections to the following patch?
Index: kern_lock.c
===
RCS file: /usr/cvs/src/sys/kern/kern_lock.c,v
retrieving revision 1.46
diff -u -r1.46 kern_lock.c
--- kern_lock.c 2001/04/28 12:11:01 1.46
+++ kern_lock.c 2001/08/07
On Wed, 8 Aug 2001, craig wrote:
I think the performance is the most important in kernel, other
thing is second. I remember in linux linear address is real
physical address in kernel space(is it true?). Why freebsd does
not do in the same way?
1) wouldn't you think things like reliability
thanks to all for the help with the timing question. Increasing the hz to
400 (in param.c) allowed for granularity of 5ms, which is what we needed.
For those as unknowing as I was about unix timing, I ran across the
following url which explained why a setting of 400hz allows for a max
resolution
not from me, though you might say why you want this..
On Wed, 8 Aug 2001, John Baldwin wrote:
Any objections to the following patch?
Index: kern_lock.c
===
RCS file: /usr/cvs/src/sys/kern/kern_lock.c,v
retrieving revision
On Wed, Aug 08, 2001 at 11:17:38AM -0700, Julian Elischer wrote:
not from me, though you might say why you want this..
I think the reason was in the Subject line:
Subject: [PATCH] Change lockmgr() to not recursively panic
Jason
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with
Wow, much useful feedback. Thanks.
Terry, your general formula for nmbclusters per connection is pretty
much what I am looking for. Great stuff.
Frankly, it sounds like your application is bad; does it limit
itself to 150 connections, or is it trying to make as many
connections as it
On Tue, Aug 07, 2001 at 11:55:47PM -0500, Alfred Perlstein wrote:
[...]
Your system isn't configured for high network throughput, you
want to put something like:
kern.ipc.nmbclusters=32768
this might also help:
net.inet.tcp.tcbhashsize=32768
put those into /boot/loader.conf
So to
* Brian O'Shea [EMAIL PROTECTED] [010808 13:55] wrote:
On Tue, Aug 07, 2001 at 11:55:47PM -0500, Alfred Perlstein wrote:
[...]
Your system isn't configured for high network throughput, you
want to put something like:
kern.ipc.nmbclusters=32768
this might also help:
On 08-Aug-01 Julian Elischer wrote:
not from me, though you might say why you want this..
Ever had a panic. Tried to get a dump, and then had lockmgr blow up with
some other panic? That's what this is trying to prevent. I'll have to make
sure that case is still reproducible, however.
ah yes stupid of me.. yes.
On Wed, 8 Aug 2001, John Baldwin wrote:
On 08-Aug-01 Julian Elischer wrote:
not from me, though you might say why you want this..
Ever had a panic. Tried to get a dump, and then had lockmgr blow up with
some other panic? That's what this is trying to
I would very much like to know, exaclty which files comprise the code for
NEWBUS, excluding the drivers themselves.Can anyone help
Thanks a lot,
JAn
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Hello,
I was looking through kern_proc.c, and I noticed that unlike pfind,
pgfind does not lock the pointer to a structure being returned,
further investigating showed that the definition fo the pgrp
structure itself, in proc.h, doesn't have a mtx struct defined
within it either.
My proposal is
Lo and behold, Yar Tikhiy once said:
In the case of local access, it's no problem, since anyone may read
/etc/passwd directly. OTOH, letting remote folks peek at user
information even if the user wants to hide himself is a bad thing.
The issue I'd like to submit to discussion is what way
On Wednesday, 8 August 2001 at 0:27:23 -0700, Terry Lambert wrote:
void wrote:
Can you name one SMP OS implementation that uses an
interrupt threads approach that doesn't hit a scaling
wall at 4 (or fewer) CPUs, due to heavier weight thread
context switch overhead?
Solaris, if I remember
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