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11-27-2006 02:49 AM
11-27-2006 02:49 AM
I am working on porting my ANSI C based application from HPUX 11i to LINUX. The distro of Linux I am using is RH 4 Enterprise Workstation. I mangaged to get all my source to compile and now I am in the middle of doing some performance studies on my application and it seems to be slightly slower then on HPUX 11i. So I started looking out on RH website and noticed they have distros for i386, x86 and ia64. I am not sure I installed the correct package for my uProc. So just poking around I did the following and got the following output. Does this look ok?
#uname –i
i386
#uname -p
i686
How do I know I have installed the correct disto for my uProc type?
Solved! Go to Solution.
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11-27-2006 08:39 AM
11-27-2006 08:39 AM
Re: uname info
You can recompile your kernel for the specific proc that it has.
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11-27-2006 08:48 AM
11-27-2006 08:48 AM
Re: uname info
PA-RISC was and is a more efficient architecture than Intel. PA-RISC and similar generation Intel chips prove that.
There is nothing wrong with a slight performance drop going to Linux. Lots of possible factors, code optimized for PA-RISC, different compilers, 64 bit processor versus 32 bit, lots of potential factors.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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11-27-2006 08:49 AM
11-27-2006 08:49 AM
Re: uname info
It is a Xeon uProc, how can I recompile the kernel for that specific uproc?
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11-27-2006 12:53 PM
11-27-2006 12:53 PM
Re: uname info
"EM64T". Please choose this option while configuring your kernel specific to your machine.
YMMV.
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11-27-2006 01:15 PM
11-27-2006 01:15 PM
Re: uname info
Is there a process for configuring the kernel with with a new uProc? Do I simply change the /proc/cpuinfo file or is there a specific process?
Many Thanks - S
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11-27-2006 10:30 PM
11-27-2006 10:30 PM
Re: uname info
The manual recompile is not easy but is the better way for have a good tuning.
The rpm is fast and easy but not accurate like the manual mode.
see this link:
http://recompile.org/
Hope helpful!
Bye!
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11-28-2006 12:38 AM
11-28-2006 12:38 AM
Solutioni386 and x86 are the same architechtures.
i32_64 *may* improve performance for memory-intensite applications and on server with big RAM.
What is your RISC server and Intel server config - CPU/RAM/disk system?
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11-28-2006 07:29 PM
11-28-2006 07:29 PM
Re: uname info
>> kernel with with a new uProc?
You choose the CPU details while configuring your kernel using the make config or make menuconfig scripts, inside the top-level of the source dir.
There is no seperate process to do this but in Debian, this can be done elegantly by using the "kernel-package" uty. This also helps you keep track of your kernel compile jobs.