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Subject: Re: 64-bit : Vista vs Linux
Date: Tue, 25 Nov 2008 23:47:01 +0000 (UTC)
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"Suresh " <sureshn@aps.anl.gov> wrote in message <fuo28q$9in$1@fred.mathworks.com>...
> Hi Peter,
> 
> I wanted to understand this better. I am thinking of rebuilding the vista 
> hardware with Linux and do a direct comparison that way. I just want the best 
> performance and matlab runs equally well on Linux too (we are not doing any 
> simulink). I will post my test results later for people who are interested.
> 
> Thanks.
> 
> Suresh
> 
> 
> Peter Boettcher <boettcher@ll.mit.edu> wrote in message 
> <muylk34n32f.fsf@G99-Boettcher.llan.ll.mit.edu>...
> > 
> > [Please post your responses at the end, after trimming from the quoted
> > material]
> > 
> > "Suresh " <sureshn@aps.anl.gov> writes:
> > 
> > > "Yi Cao" <y.cao@cranfield.ac.uk> wrote in message
> > > <fulpra$k3f$1@fred.mathworks.com>...
> > >
> > >> "Suresh " <sureshn@aps.anl.gov> wrote in message <fulolp$982
> > >> $1@fred.mathworks.com>...
> > >> > 
> > >> > You are right about the memory being faster and that is a direct
> > >> > factor in what I am doing. But still I cannot explain a factor of 2
> > >> > in speed other than the fact the Linux OS handles resources much
> > >> > better than Windows.
> > >> > 
> > >> > 
> > >> > Vista Hardware:
> > >> > Dual-Core Intel? Xeon? Processor 5160 3.00 GHz 1333 MHz 
> > >> > FSB 4 MB L2 
> > >> > cache EX615AV 
> > >> > Dual-Core Intel? Xeon? Processor 5160 3.00 GHz 1333 MHz 
> > >> > FSB 4 MB L2 
> > >> > cache (2nd) EX616AV 
> > >> > HP 8GB (4x2GB) DDR2-667 ECC FBD RK355AV 
> > >> > HP 250GB SATA 3Gb/s NCQ 7200 (1st) EM060AV 
> > >> > 
> > >> > Linux Hardware:
> > >> > 2.33 GHz Intel Core Duo
> > >> > 8 GB DDR2-8 MHz RAM
> > >> > Hard disk same speed as well as capacity.
> > 
> > >> How about MATLAB bench results? Do you still get a factor 
> > >> of 2 performance difference?
> > 
> > > Actually the benchmark shows that the 2 machines should be
> > > very similar.
> > 
> > That indicates that your code is bottlenecked somewhere other than at
> > the CPU.  You'll have to keep searching if you want to understand this.
> > Try some disk benchmark software (iozone, fio, etc).  Even if the drives
> > are the same, there could still be a difference in filesystems, location
> > of the data on disk, caching/readahead algorithms at the OS level, etc.
> > 
> > -Peter
> 
> 

Can you please let us know when you have completed this task?

I am in the middle of deciding whether or not I would like to go with Ubuntu 64 or Vista 64. I think in my case I would be going with Ubuntu for I am not in need of anything OS specific. I can always run VMware and have my Windows OS I need! I run the Folding @ home clients on my primary machine (currently setting up on others) but I am not utilizing my 64-bit portion of my CPU.

Well that is just a little background of what I am in the middle of.

~Aaron