Re: fs cache

2007-06-24 Thread Norberto Meijome
On Fri, 22 Jun 2007 14:23:58 +0300
Vlad GURDIGA [EMAIL PROTECTED] wrote:

 
  mount /proc maybe?

man mount_procfs

 
  you can always use ktrace  

man ktrace

 
 I'm afraid my background in this area is too thin to go that far...

ktrace is similar to strace, but part of BSD.

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Re: fs cache

2007-06-22 Thread Vlad GURDIGA

On 22/06/07, Norberto Meijome [EMAIL PROTECTED] wrote:

On Thu, 21 Jun 2007 22:50:25 +0300
Vlad GURDIGA [EMAIL PROTECTED] wrote:

 On 18/06/07, Norberto Meijome [EMAIL PROTECTED] wrote:
  On Sun, 17 Jun 2007 10:24:21 +0300
  Vlad GURDIGA [EMAIL PROTECTED] wrote:
 
   I have FreeBSD 7-CURRENT and Ubuntu on the same computer but Firefox
   takes twice as long to start on a fresh boot.
 
  If you are using the default CURRENT kernel config, it has several options 
enabled to debug kernel and trace issues. This will slow down your system, although I 
am not sure whether this is actually your problem. You should try -STABLE.
 
  you may want to compare the output of strace or similar to see where the 
time is spent.

 It looks like strace does not run on 7-CURRENT:
 kpax# strace firefox
 strace: open(/proc/..., ...): No such file or directory

(please keep the list in CC)

mount /proc maybe?

you can always use ktrace


I'm afraid my background in this area is too thin to go that far...
I apologize for the noise.
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Re: fs cache

2007-06-22 Thread Nikos Vassiliadis
On Friday 22 June 2007 14:23, Vlad GURDIGA wrote:
 I'm afraid my background in this area is too thin to go that far...

-CURRENT is for developers or users who want to contribute in
the development process of FreeBSD. And as Noberto said, there
is a lot of debugging info enabled, which make debugging
possible, but hurt performance greatly.

http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html#CURRENT

 I apologize for the noise.

No worries, just download and install 6.2-RELEASE.

http://www.freebsd.org/releases/6.2R/announce.html

or a snapshot of 6-STABLE, which is updated
in a slow pace, for fixes or security holes.

http://www.freebsd.org/snapshots/

Releases are considered to be the most stable.
Install 6.2-RELEASE and if you feel like updating
you can use freebsd-update.

Keep in mind that all these new, old, released
or other, are relative to the operating system
itself and not the third party programs(packages,
ports) you'll be using(GNOME, firefox, etc). Ports
are not branched and same versions are used in
all branches... So, running a supported release
does not mean, that you have to run legacy packages.

HTH, Nikos
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Re: fs cache

2007-06-22 Thread Vlad GURDIGA

On 22/06/07, Nikos Vassiliadis [EMAIL PROTECTED] wrote:

On Friday 22 June 2007 14:23, Vlad GURDIGA wrote:
 I'm afraid my background in this area is too thin to go that far...

-CURRENT is for developers or users who want to contribute in
the development process of FreeBSD. And as Noberto said, there
is a lot of debugging info enabled, which make debugging
possible, but hurt performance greatly.

http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html#CURRENT

 I apologize for the noise.

No worries, just download and install 6.2-RELEASE.


I'd love to but some of my hardware is not supported by 6.2.
Audio chipset Sigmatel 9221 is not supported.
My SATA controller had an issue on 6.2 (I wrote about that on the
list: 
http://lists.freebsd.org/pipermail/freebsd-questions/2007-March/145701.html)
and in the end I was advised to try -CURRENT. This is whar I did and
was happy for a while. Sound and HDD are working perfectly, and
performance is OK even with the debugging options enabled in kernel.
But now I am left without OpenOffice (yes, there is another current
thread here). I Guess it's time to switch to Google Docs for a while,
until 7-RELEASE is out.. ;-)

Thanks for comments.



http://www.freebsd.org/releases/6.2R/announce.html

or a snapshot of 6-STABLE, which is updated
in a slow pace, for fixes or security holes.

http://www.freebsd.org/snapshots/

Releases are considered to be the most stable.
Install 6.2-RELEASE and if you feel like updating
you can use freebsd-update.

Keep in mind that all these new, old, released
or other, are relative to the operating system
itself and not the third party programs(packages,
ports) you'll be using(GNOME, firefox, etc). Ports
are not branched and same versions are used in
all branches... So, running a supported release
does not mean, that you have to run legacy packages.

HTH, Nikos


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Re: fs cache

2007-06-21 Thread Norberto Meijome
On Thu, 21 Jun 2007 22:50:25 +0300
Vlad GURDIGA [EMAIL PROTECTED] wrote:

 On 18/06/07, Norberto Meijome [EMAIL PROTECTED] wrote:
  On Sun, 17 Jun 2007 10:24:21 +0300
  Vlad GURDIGA [EMAIL PROTECTED] wrote:
 
   I have FreeBSD 7-CURRENT and Ubuntu on the same computer but Firefox
   takes twice as long to start on a fresh boot.
 
  If you are using the default CURRENT kernel config, it has several options 
  enabled to debug kernel and trace issues. This will slow down your system, 
  although I am not sure whether this is actually your problem. You should 
  try -STABLE.
 
  you may want to compare the output of strace or similar to see where the 
  time is spent.
 
 It looks like strace does not run on 7-CURRENT:
 kpax# strace firefox
 strace: open(/proc/..., ...): No such file or directory

(please keep the list in CC)

mount /proc maybe?

you can always use ktrace 

 trouble opening proc file
 kpax# strace-graph  firefox
 Can't open firefox: No such file or directory at
 /usr/local/bin/strace-graph line 43.
  (anon)
 kpax#


_
{Beto|Norberto|Numard} Meijome

Egotism is the anesthetic that dulls the pain of stupidity.
  Frank Leahy

I speak for myself, not my employer. Contents may be hot. Slippery when wet. 
Reading disclaimers makes you go blind. Writing them is worse. You have been 
Warned.
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fs cache

2007-06-17 Thread Vlad GURDIGA

Hello,

I have FreeBSD 7-CURRENT and Ubuntu on the same computer but Firefox
takes twice as long to start on a fresh boot. I've run some simple
tests:
- on FreeBSD it takes about 7 seconds on the first start and about 3
on subsequent startups;
- on Ubuntu it takes about 3 seconds on the first start and about 1 on
subsequent startups;

The only difference I can see is that on Ubuntu, after first start of
Firefox the memory use for cache is 22% vs. 0% on FreeBSD. My guess is
that this is the cause of slower startups on FreeBSD.

My question is: can I tune UFS2 in such a way that the most frequently
used desktop applications would remain for a longer time in disk
cache?

In both cases I use GNOME 2.18, GNOME System Monitor 2.18, and Firefox 2.
Both FreeBSD 7-CURRENT (src and ports tree) and Ubuntu 7.01
(2.6.20-16-generic kernel) are up to date. Both are SMP and 32bit.
Here is the system configuration:
- Intel DP965LT mother-board;
- dual-core Pentium D 820;
- 1GB of dual-channel-enabled DDR2 PC5300 at 667 MHz;
- Seagate, BARRACUDA 7200.7 Plus, 160GB, ST3160827AS, 8M cache, cu NCQ;

As far as I know, FreeBSD does not have support for NCQ, and I do not
know about Ubuntu.
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Re: fs cache

2007-06-17 Thread Norberto Meijome
On Sun, 17 Jun 2007 10:24:21 +0300
Vlad GURDIGA [EMAIL PROTECTED] wrote:

 I have FreeBSD 7-CURRENT and Ubuntu on the same computer but Firefox
 takes twice as long to start on a fresh boot. 

If you are using the default CURRENT kernel config, it has several options 
enabled to debug kernel and trace issues. This will slow down your system, 
although I am not sure whether this is actually your problem. You should try 
-STABLE.

you may want to compare the output of strace or similar to see where the time 
is spent.


_
{Beto|Norberto|Numard} Meijome

If Bill Gates had a dollar for every time a Windows box crashed...
.. Oh, wait a minute, he already does.

I speak for myself, not my employer. Contents may be hot. Slippery when wet. 
Reading disclaimers makes you go blind. Writing them is worse. You have been 
Warned.
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