Re: Porting from LInux to FreeBSD

[Subhro]

Deepak Naidu sat at his 'puter and typed on 9/8/2005 15:16:


Hi,
 


Hello :-),


  I am trying to migrate my mail servers from Fedora
core 3 to FreeBSD 5.4, due to performance issue. 


Cool! Go for it :-)


1)Which is the suitable filesystem ie UFS2, Ext2
etc...
for mailing server. I used raiserfs in linux.  Which
File System's are supported in FreeBSD 5.4 and which
is stable for mailing system.  How do i enable them in
kernel.
 


The native filesystem for FreeBSD 5.x and above is UFS2 which performs
exceptionally well IMHO. Reiserfs also has support in FBSD although
readonly only. Just something off topic, did you have any reasons for
using ReiserFS in Linux and not use EXT2/3?


2)How to i find memory, cpu information in freebsd,
apart from TOP. In linux we have free and
/pro/cpuinfo.  I dont see any files under /proc
 


what information do you need that top does not provide? You can try
sysctl -a | more and analyse all the kernel runtime variables.


3) Is SMP support enabled in FreeBSD 5.4, or should I
recompile the kernel for the support(what kernel
arguments should I use).
 


No SMP by default is not there in the stock kernel. However you can boot
up your SMP box with the stock kernel and cimpile SMP support in it.
Refer to the handbook for the kernel parameters.
Also have a look at /usr/src/sys//conf/GENERIC and
/usr/src/sys//conf/NOTES for examples where  is your
architecture (i386,amd64,etc)

Welcome to the world of FreeBSD.

Thanks
S.

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Re: Porting from LInux to FreeBSD

[Subhro]

Deepak Naidu sat at his 'puter and typed on 9/8/2005 16:55:


Hey Subhro thanx for the info.  I used Reiserfs in
linux, bcos its reads and writes smaller files faster
like file size of 1-5 Mb, basically for mailing
solution.  I dont know where iam wrong.  


I have read regarding XFS, in freebsd any info ?.
So ok FreeBSD supports UFS1/2, dos, fat, fat32, ext2
reiserfs read only, ok cool...

So how do i enable Reiserfs in kernel, and do the
partion at install time...

http://people.freebsd.org/~rodrigc/xfs/index.html
 

XFS is supported in FBSD. For infomration regarding enabling various 
stuff in the kernel have a look at /usr/src/sys/conf/NOTES. BTW, your 
mail client incorrectly marks the replies. Why dont u use thunderbird? 
Its a really cool client IMHO. Also send a cc to 
[EMAIL PROTECTED]


Thanks
S.



--- Subhro <[EMAIL PROTECTED]> wrote:

 


Deepak Naidu sat at his 'puter and typed on 9/8/2005
15:16:

   


Hi,


 


Hello :-),

   


 I am trying to migrate my mail servers from
 


Fedora
   

core 3 to FreeBSD 5.4, due to performance issue. 

 


Cool! Go for it :-)

   


1)Which is the suitable filesystem ie UFS2, Ext2
etc...
for mailing server. I used raiserfs in linux. 
 


Which
   


File System's are supported in FreeBSD 5.4 and
 


which
   


is stable for mailing system.  How do i enable them
 


in
   


kernel.


 


The native filesystem for FreeBSD 5.x and above is
UFS2 which performs
exceptionally well IMHO. Reiserfs also has support
in FBSD although
readonly only. Just something off topic, did you
have any reasons for
using ReiserFS in Linux and not use EXT2/3?

   


2)How to i find memory, cpu information in freebsd,
apart from TOP. In linux we have free and
/pro/cpuinfo.  I dont see any files under /proc


 


what information do you need that top does not
provide? You can try
sysctl -a | more and analyse all the kernel runtime
variables.

   


3) Is SMP support enabled in FreeBSD 5.4, or should
 


I
   


recompile the kernel for the support(what kernel
arguments should I use).


 


No SMP by default is not there in the stock kernel.
However you can boot
up your SMP box with the stock kernel and cimpile
SMP support in it.
Refer to the handbook for the kernel parameters.
Also have a look at /usr/src/sys//conf/GENERIC
and
/usr/src/sys//conf/NOTES for examples where
 is your
architecture (i386,amd64,etc)

Welcome to the world of FreeBSD.

Thanks
S.

--

   


-+-
 


 | Subhro Sankha Kar
 \   /  |   GSM: +919831064613  Egold:
2078232
  \./|MSN:[EMAIL PROTECTED]  --  Yahoo:
subhro82
 (0Y0)   |ICQ: 203567534 --  AIM:
bsdboy1982

   


--ooO--(_)--Ooo--+-
 



   






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-+-
 | Subhro Sankha Kar
 \   /  |   GSM: +919831064613  Egold: 2078232
  \./|MSN:[EMAIL PROTECTED]  --  Yahoo: subhro82
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Re: Porting from LInux to FreeBSD

[Svein Halvor Halvorsen]

* Deepak Naidu [2005-09-08 10:46 +0100]
>  2)How to i find memory, cpu information in freebsd,
>  apart from TOP. In linux we have free and
>  /pro/cpuinfo.  I dont see any files under /proc

You need to mount procfs on /proc to have files appear in /proc. However, 
you won't find cpuinfo in there, just one folder for each running process.
You could however mount the linprocfs filesystm in /compat/linux/proc and 
look at /compat/linux/proc/cpuinfo et.al. You'd need to load the linux and 
linprocfs kernel modules to do that.

To gather system information, these utils should provide a starting point:

dmesg(8)
sysctl(8) 
kenv(1)
devinfo(8)
pciconf(8)
vmstat(8)
pstat(8)
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Re: Porting from LInux to FreeBSD

[Deepak Naidu]

i am using my yahoo a/c ... ya regarding xfs its only
read only support in 6.0 and no support for 5.4

Thanx 
Deepak Naidu.

--- Subhro <[EMAIL PROTECTED]> wrote:

> Deepak Naidu sat at his 'puter and typed on 9/8/2005
> 16:55:
> 
> >Hey Subhro thanx for the info.  I used Reiserfs in
> >linux, bcos its reads and writes smaller files
> faster
> >like file size of 1-5 Mb, basically for mailing
> >solution.  I dont know where iam wrong.  
> >
> >I have read regarding XFS, in freebsd any info ?.
> >So ok FreeBSD supports UFS1/2, dos, fat, fat32,
> ext2
> >reiserfs read only, ok cool...
> >
> >So how do i enable Reiserfs in kernel, and do the
> >partion at install time...
> >
> >http://people.freebsd.org/~rodrigc/xfs/index.html
> >  
> >
> XFS is supported in FBSD. For infomration regarding
> enabling various 
> stuff in the kernel have a look at
> /usr/src/sys/conf/NOTES. BTW, your 
> mail client incorrectly marks the replies. Why dont
> u use thunderbird? 
> Its a really cool client IMHO. Also send a cc to 
> [EMAIL PROTECTED]
> 
> Thanks
> S.
> 
> >
> >--- Subhro <[EMAIL PROTECTED]> wrote:
> >
> >  
> >
> >>Deepak Naidu sat at his 'puter and typed on
> 9/8/2005
> >>15:16:
> >>
> >>
> >>
> >>>Hi,
> >>> 
> >>>
> >>>  
> >>>
> >>Hello :-),
> >>
> >>
> >>
> >>>  I am trying to migrate my mail servers from
> >>>  
> >>>
> >>Fedora
> >>
> >>
> >>>core 3 to FreeBSD 5.4, due to performance issue. 
> >>>
> >>>  
> >>>
> >>Cool! Go for it :-)
> >>
> >>
> >>
> >>>1)Which is the suitable filesystem ie UFS2, Ext2
> >>>etc...
> >>>for mailing server. I used raiserfs in linux. 
> >>>  
> >>>
> >>Which
> >>
> >>
> >>>File System's are supported in FreeBSD 5.4 and
> >>>  
> >>>
> >>which
> >>
> >>
> >>>is stable for mailing system.  How do i enable
> them
> >>>  
> >>>
> >>in
> >>
> >>
> >>>kernel.
> >>> 
> >>>
> >>>  
> >>>
> >>The native filesystem for FreeBSD 5.x and above is
> >>UFS2 which performs
> >>exceptionally well IMHO. Reiserfs also has support
> >>in FBSD although
> >>readonly only. Just something off topic, did you
> >>have any reasons for
> >>using ReiserFS in Linux and not use EXT2/3?
> >>
> >>
> >>
> >>>2)How to i find memory, cpu information in
> freebsd,
> >>>apart from TOP. In linux we have free and
> >>>/pro/cpuinfo.  I dont see any files under /proc
> >>> 
> >>>
> >>>  
> >>>
> >>what information do you need that top does not
> >>provide? You can try
> >>sysctl -a | more and analyse all the kernel
> runtime
> >>variables.
> >>
> >>
> >>
> >>>3) Is SMP support enabled in FreeBSD 5.4, or
> should
> >>>  
> >>>
> >>I
> >>
> >>
> >>>recompile the kernel for the support(what kernel
> >>>arguments should I use).
> >>> 
> >>>
> >>>  
> >>>
> >>No SMP by default is not there in the stock
> kernel.
> >>However you can boot
> >>up your SMP box with the stock kernel and cimpile
> >>SMP support in it.
> >>Refer to the handbook for the kernel parameters.
> >>Also have a look at
> /usr/src/sys//conf/GENERIC
> >>and
> >>/usr/src/sys//conf/NOTES for examples where
> >> is your
> >>architecture (i386,amd64,etc)
> >>
> >>Welcome to the world of FreeBSD.
> >>
> >>Thanks
> >>S.
> >>
> >>-- 
> >>
> >>
> >>
>
>-+-
> >  
> >
> >> | Subhro Sankha
> Kar
> >>  \   /  |   GSM: +919831064613 
> Egold:
> >>2078232
> >>   \./   |MSN:[EMAIL PROTECTED]  --  Yahoo:
> >>subhro82
> >>  (0Y0)  |ICQ: 203567534 --  AIM:
> >>bsdboy1982
> >>
> >>
> >>
>
>--ooO--(_)--Ooo--+-
> >  
> >
> >>
> >>
> >>
> >
> >
> >
> > 
>
>___
> 
> >Does your mail provider give you FREE antivirus
> protection? 
> >Get Yahoo! Mail http://uk.mail.yahoo.com
> >
> >  
> >
> 
> 
> -- 
>
-+-
>| Subhro Sankha Kar
>   \   /  |   GSM: +919831064613  Egold:
> 2078232
>\./ |MSN:[EMAIL PROTECTED]  --  Yahoo:
> subhro82
>   (0Y0)|ICQ: 203567534 --  AIM:
> bsdboy1982
>
--ooO--(_)--Ooo--+-
> 
> 



Linux your Life, Don't Window it [[]] 

   { All for the best }






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Re: Porting from LInux to FreeBSD

[Martin Hepworth]

On 9/8/05, Deepak Naidu <[EMAIL PROTECTED]> wrote:
> 
> Hi,
> I am trying to migrate my mail servers from Fedora
> core 3 to FreeBSD 5.4, due to performance issue. Had
> few questions.
> 
> 1)Which is the suitable filesystem ie UFS2, Ext2
> etc...
> for mailing server. I used raiserfs in linux. Which
> File System's are supported in FreeBSD 5.4 and which
> is stable for mailing system. How do i enable them in
> kernel.


I'd suggest use the ufs2 default with softupdates (a liitle like journaling 
but better) enabled. 

Other questions already answered by other people
--
martin
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Re: Porting from LInux to FreeBSD

[RW]

On Thursday 08 September 2005 11:25, Subhro wrote:
> Deepak Naidu sat at his 'puter and typed on 9/8/2005 15:16:
>>...
> >for mailing server. I used raiserfs in linux.  Which
> ...  
> Just something off topic, did you have any reasons for 
> using ReiserFS in Linux and not use EXT2/3?

See:

 

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Re: Porting from LInux to FreeBSD

[RW]

On Thursday 08 September 2005 10:46, Deepak Naidu wrote:

> 2)How to i find memory, cpu information in freebsd,
> apart from TOP. In linux we have free and
> /pro/cpuinfo.  I dont see any files under /proc
>
On the subject of /proc see:



but bear this in mind when looking at free memory:


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Re: Porting from linux to FreeBSD (procfs question)

[Ivan Voras]

Fernando Apesteguía wrote:

> 1 - Try to rely the porting on the compatibility procfs from FreeBSD
> 2 - Do the things in a completely different way (which one is this?
> Invoking sysctl system call?)
> 
> I would like to know from you which one is the best approach.

The best way to do it is to abstract the OS-dependant stuff from the
application into separate modules / classes / libraries / etc. and then
proceed by the second approach (use procfs on linux, use sysctl on FreeBSD).

The first approach would probably be tedious if the application is
non-trivial but there's also linprocfs which behaves more like the linux
procfs but it's also incomplete.



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Re: Porting from linux to FreeBSD (procfs question)

[Fernando Apesteguía]

On Jan 3, 2008 2:47 PM, Ivan Voras <[EMAIL PROTECTED]> wrote:
> Fernando Apesteguía wrote:
>
> > 1 - Try to rely the porting on the compatibility procfs from FreeBSD
> > 2 - Do the things in a completely different way (which one is this?
> > Invoking sysctl system call?)
> >
> > I would like to know from you which one is the best approach.
>
> The best way to do it is to abstract the OS-dependant stuff from the
> application into separate modules / classes / libraries / etc. and then
> proceed by the second approach (use procfs on linux, use sysctl on FreeBSD).

OK, the code is modular enough to separate the dependant code into
different places.

>
> The first approach would probably be tedious if the application is
> non-trivial but there's also linprocfs which behaves more like the linux
> procfs but it's also incomplete.

Yes, that's my problem. In Linux I can get from /proc/cpuinfo for
example: name, model, stepping, cache size, clock speed, supported
extensions, etc...
But using sysctl in FreeBSD (sysctl -a) I can only see name and vendor
for the cpu and a few more things. Am I limited to the variables
showed in sysctl -a?

Thanks in advance.

BTW if this is isn't the proper list to continue with this thread, let me know.

Cheers.

>
>
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Re: Porting from linux to FreeBSD (procfs question)

[Ivan Voras]

On 03/01/2008, Fernando Apesteguía <[EMAIL PROTECTED]> wrote:

> Yes, that's my problem. In Linux I can get from /proc/cpuinfo for
> example: name, model, stepping, cache size, clock speed, supported
> extensions, etc...
> But using sysctl in FreeBSD (sysctl -a) I can only see name and vendor
> for the cpu and a few more things. Am I limited to the variables
> showed in sysctl -a?

Probably. I don't know if there's anything that can give you the
details present in cpuinfo (except using CPUID data directly).

> Thanks in advance.
>
> BTW if this is isn't the proper list to continue with this thread, let me 
> know.

Maybe hackers@ would help you more.
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Re: Porting from linux to FreeBSD (procfs question)

[Jerry McAllister]

On Thu, Jan 03, 2008 at 02:14:57PM +0100, Fernando Apesteguía wrote:

> Hi all,
> 
> First of all, Happy New Year.
> 
> I have a question about porting an application from Linux to FreeBSD.
> 
> The application I want to port, makes an extensive use of the procfs
> in Linux. It gathers a lot of information from those files (cpuinfo,
> meminfo, devices, filesystems, modules, etc...)
> 
> As I know, FreeBSD has some kind of procfs but more limited in terms
> of information. My questions is how should I proceed now? I see two
> options.
> 
> 1 - Try to rely the porting on the compatibility procfs from FreeBSD
> 2 - Do the things in a completely different way (which one is this?
> Invoking sysctl system call?)

Use the sysctl calls.  That is what will be supported correctly.

jerry

> 
> I would like to know from you which one is the best approach.
> 
> Thanks in advance
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Re: Porting from linux to FreeBSD (procfs question)

[Jeremy Chadwick]

On Thu, Jan 03, 2008 at 05:16:42PM +0100, Ivan Voras wrote:
> On 03/01/2008, Fernando Apesteguía <[EMAIL PROTECTED]> wrote:
> 
> > Yes, that's my problem. In Linux I can get from /proc/cpuinfo for
> > example: name, model, stepping, cache size, clock speed, supported
> > extensions, etc...
> > But using sysctl in FreeBSD (sysctl -a) I can only see name and vendor
> > for the cpu and a few more things. Am I limited to the variables
> > showed in sysctl -a?
> 
> Probably. I don't know if there's anything that can give you the
> details present in cpuinfo (except using CPUID data directly).

Best bet is parsing or using the hw.model sysctl, or if you need
lower-level information, there is a port that apparently gets cache size
and other data.

There are very few things I liked about Linux /proc when I used it, but
getting h/w information happened to be one of them...

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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Re: Porting from linux to FreeBSD (procfs question)

[Patrick Lamaiziere]

Le Thu, 3 Jan 2008 14:14:57 +0100,
"Fernando Apesteguía" <[EMAIL PROTECTED]> a écrit :

> As I know, FreeBSD has some kind of procfs but more limited in terms
> of information. My questions is how should I proceed now? I see two
> options.
> 
> 1 - Try to rely the porting on the compatibility procfs from FreeBSD
> 2 - Do the things in a completely different way (which one is this?
> Invoking sysctl system call?)
> 
> I would like to know from you which one is the best approach.

I don't know exactly what you need, but look at libkvm. Good samples
are ps and top in the source code.
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