There are many possible answers to this question. Can you explain
more about exactly what you need?
Depending on what you can and cannot access, one method is to sniff
the network or the network interface. This will tell you when write
requests come to the server, but can require a great deal
> We've got a FreeBSD 5.2.1-RELEASE-p1 server that's been up for 460
> days now, with pretty heavy use the whole time (70GB+ per day http
> traffic, 140 hits/sec, etc).
>
> Before we give it a reboot to upgrade, does anyone want to see any
> counters or stats or anything? I ask because it's sometim
On Thu, 10 Mar 2005, Jeremie Le Hen wrote:
> A little time ago, phk@ asked for people to submit regression tests for
> virtual filesystem like this [1]. AFAIK, nobody submitted even one test
> so far. This could be a good starting point to have unionfs work
> correctly again. However, I think F
Any chance some part of this discussion can be taken off-line?
Or to freebsd-sec?
-Dan
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On Wed, 7 Jul 2004, David Schultz wrote:
> The page referenced earlier in this thread pointed out that 6
> staff-years went into DTrace. That's accurate, and we're not
> talking about part-time employees or people who don't know what
> they're doing. The D compiler aside, this is not a small mat
In a nutshell, here is what DTrace is about:
- It has no impact on the system when it is not used. So you can
leave it in all the time, instead of having a debug kernel and
a production kernel.
[I don't know how they achieve the "no impact" but they claim
that th
> And let there be light... DANG.. well it almost blinded me. I was
> confusing with char[16], which has the +1 byte for the null
> terminating, but the malloc(16) hasn't...
No, that's still not quite it...
char[16] allocates exactly 16 characters. Period. There's no extra
space on the end
I use NIS to manage passwords, and due to a
policy change I recently changed the last line
of the password file from
+:
to
[EMAIL PROTECTED]:
so that only my "guests" are able to log in to my machines instead of
everyone in the entire department.
This works fin
Can someone point me at some non-marketing documentation about
hyperthreading on the latest Intel chips? I'm seeing some strange
performance measurements and I would like to figure out what they
mean.
My systems have the following CPU:
CPU: Intel(R) Xeon(TM) CPU 1.80GHz (1799.81-MHz 686-class
On Fri, 15 Aug 2003, Doug Ambrisko wrote:
> | I thought this was configurable by setting a variable in
> | /boot/loader.conf and rebooting, but I haven't been able to find the
> | right variable(s). (someone suggested MAXMEM, but this doesn'
> | seem to do anything at all.)
>
> I think it is
>
I am experimenting with the relationship between RAM size and various
file system performance characteristics. I've got a machine with a
large amount of RAM; what I want is to be able to tell FreeBSD to only
use a fraction of it, so I can pretend the machine has various
different amounts of RAM.
I'm not sure if this a question for fs or hackers, so I apologize if
you see this twice.
I'm writing a device driver for a "soft-mirrored" disk. The idea is
similar to ordinary disk mirroring, except that the focus is entirely
on higher performance instead of fault tolerance -- the secondary dis
The tweaks I've been working on are for read performance. Based on
what you sent, I don't think read performance is your problem at all
(although they might help you anyway, in the long run). So, my advice
might be no more useful than line noise, but here goes:
1. You've got a nfsd taking 48%
Does FreeBSD work with the Tyan i7500 (S2720UGN) motherboard? I'm
particularly interested in whether the on-board gigabit NIC (using the
intel 82545GC chip) works with the em driver, and whether the on-board
SCSI controller is properly recognized.
Thanks,
-Dan
p.s. I posted this to the
On Fri, 7 Feb 2003, Jacques A. Vidrine wrote:
> > Something slightly broke the em (gigabit ethernet) driver between
> > 4.6.2p4 and 4.6.2p6, and I'm trying to figure what the change was so I
> > can back it out on my machine. ...
>
> It seems awfully unlikely that the changes between 4.6.2p4 and
Something slightly broke the em (gigabit ethernet) driver between
4.6.2p4 and 4.6.2p6, and I'm trying to figure what the change was so I
can back it out on my machine. In 4.6.2p6 almost everything works,
but programs that push the device (such as netperf) can hang. The
same program running on ot
Terry Lambert <[EMAIL PROTECTED]> wrote:
> Audsin wrote:
> > I am Dev, doing my research in Centre for Telecommunications Research,
> > King's college London. My research project involves evaluating the
> > performance of MIP6 TCP in the presence of fragmentation and without
> > fragmentation. I a
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