Porting from linux to FreeBSD (procfs question)
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?) I would like to know from you which one is the best approach. Thanks in advance ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Porting from linux to FreeBSD (procfs question)
=?ISO-8859-1?Q?Fernando_Apestegu=EDa?= writes: First of all, Happy New Year. And to you, 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?) As I understand it, use (2). Use of FreeBSD procfs is possible, but heavily discouraged due to known security issues. Robert Huff ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from linux to FreeBSD (procfs question)
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. signature.asc Description: OpenPGP digital signature
Re: Porting from linux to FreeBSD (procfs question)
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. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from linux to FreeBSD (procfs question)
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. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from linux to FreeBSD (procfs question)
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 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from linux to FreeBSD (procfs question)
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 | ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from linux to FreeBSD (procfs question)
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. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from LInux to FreeBSD
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: http://en.wikipedia.org/wiki/ReiserFS#Performance ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from LInux to FreeBSD
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: http://www.onlamp.com/pub/a/bsd/2005/01/13/FreeBSD_Basics.html but bear this in mind when looking at free memory: http://www.freebsd.org/doc/en/books/faq/misc.html#TOP-FREEMEM ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Porting from LInux to FreeBSD
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. 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 3) Is SMP support enabled in FreeBSD 5.4, or should I recompile the kernel for the support(what kernel arguments should I use). Regards, Deepak Naidu. ___ Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with voicemail http://uk.messenger.yahoo.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from LInux to FreeBSD
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/arch/conf/GENERIC and /usr/src/sys/arch/conf/NOTES for examples where arch 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--+- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from LInux to FreeBSD
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/arch/conf/GENERIC and /usr/src/sys/arch/conf/NOTES for examples where arch 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--+- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from LInux to FreeBSD
* 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) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Porting from LInux to FreeBSD
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/arch/conf/GENERIC
and
/usr/src/sys/arch/conf/NOTES for examples where
arch 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
(0Y0)|ICQ: 203567534 -- AIM:
bsdboy1982
--ooO--(_)--Ooo--+-
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Re: Porting from LInux to FreeBSD
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 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
