Re: Disk performance in phoronix

2009-07-27 Thread Veli-Pekka Kestilä

T. Howell-Cintron wrote:

T. Howell-Cintron wrote:
  

It's also troubling that the disk I/O, computational performance, and
more seem to be slower as new releases are made available.  They
benchmarked F7 through F10 and the different was sometimes dramatic.  We
call that progress?
  


I'm sorry, the benchmark I was referring to can be found here:
http://www.phoronix.com/scan.php?page=articleitem=fedora_test_2008num=1

-- Tom

  
If I read correctly that bechmark it's nothing to look forward. They 
didn't even run the tests multiple times (or if they did they didn't 
tell it) and they admid using version of F10 with debugging information 
on so it could affect the results. Also we don't know what settings have 
been changed from the stock distribution and cannot redo the tests so 
those test results are as good as digital toiletpaper.


-vpk

--
fedora-list mailing list
fedora-list@redhat.com
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines


Re: Disk performance in phoronix

2009-07-27 Thread Gilboa Davara
On Sun, 2009-07-26 at 21:24 -0500, T. Howell-Cintron wrote:
 T. Howell-Cintron wrote:
  I'm stunned by the results and though I'm no guru I suspect SELinux
  might have something to do with it.  What can be done to achieve better
  - hopefully comparable - performance with Fedora?
 It's also troubling that the disk I/O, computational performance, and
 more seem to be slower as new releases are made available.  They
 benchmarked F7 through F10 and the different was sometimes dramatic.  We
 call that progress?
 
 -- Tom 
 
 
As far as I understand, the main problem with Phoronix's test suite is
that it doesn't use native packages.
Sure, Phoronix' copy of bzip2/apache/etc might be slower on Fedora 11
compared to Fedora 8, but it more-or-less says -zero- about the actual
performance difference between the -native- versions of bzip2/apache/etc
on Fedora 8 and Fedora 11. 

I'm not saying that Phoronix is wrong - I am saying that his testing
methodology is invalid.

- Gilboa

-- 
fedora-list mailing list
fedora-list@redhat.com
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines


Disk performance in phoronix

2009-07-26 Thread jochen

Hi,

I just read the extremely poor result of Fedora in the Phoronix test suite.
In particular, the disk performance results are very bad. (See
http://www.phoronix.com/scan.php?page=articleitem=distro_four_waynum=4 )

Are there any explanations? 

Thanks,

Jochen

-- 
View this message in context: 
http://n2.nabble.com/Disk-performance-in-phoronix-tp3330329p3330329.html
Sent from the fedora mailing list archive at Nabble.com.

-- 
fedora-list mailing list
fedora-list@redhat.com
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines


Re: Disk performance in phoronix

2009-07-26 Thread Rahul Sundaram
On 07/27/2009 01:39 AM, jochen wrote:
 
 Hi,
 
 I just read the extremely poor result of Fedora in the Phoronix test suite.
 In particular, the disk performance results are very bad. (See
 http://www.phoronix.com/scan.php?page=articleitem=distro_four_waynum=4 )
 
 Are there any explanations? 

They are using development snapshots of these distributions and the
performance of those will vary on a daily basis with snapshots of
development kernels, the specific debugging options enabled etc. Hard to
say without more specific details (such as kernel versions) and whether
it was reproducible etc.

Rahul

-- 
fedora-list mailing list
fedora-list@redhat.com
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines


Re: Disk performance in phoronix

2009-07-26 Thread T. Howell-Cintron
jochen wrote:
 Hi,

 I just read the extremely poor result of Fedora in the Phoronix test suite.
 In particular, the disk performance results are very bad. (See
 http://www.phoronix.com/scan.php?page=articleitem=distro_four_waynum=4 )

 Are there any explanations? 
   
I'm stunned by the results and though I'm no guru I suspect SELinux
might have something to do with it.  What can be done to achieve better
- hopefully comparable - performance with Fedora?

-- Tom

-- 
fedora-list mailing list
fedora-list@redhat.com
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines


Re: Disk performance in phoronix

2009-07-26 Thread T. Howell-Cintron
T. Howell-Cintron wrote:
 I'm stunned by the results and though I'm no guru I suspect SELinux
 might have something to do with it.  What can be done to achieve better
 - hopefully comparable - performance with Fedora?
It's also troubling that the disk I/O, computational performance, and
more seem to be slower as new releases are made available.  They
benchmarked F7 through F10 and the different was sometimes dramatic.  We
call that progress?

-- Tom

-- 
fedora-list mailing list
fedora-list@redhat.com
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines


Re: Disk performance in phoronix

2009-07-26 Thread T. Howell-Cintron
T. Howell-Cintron wrote:
 It's also troubling that the disk I/O, computational performance, and
 more seem to be slower as new releases are made available.  They
 benchmarked F7 through F10 and the different was sometimes dramatic.  We
 call that progress?
   
I'm sorry, the benchmark I was referring to can be found here:
http://www.phoronix.com/scan.php?page=articleitem=fedora_test_2008num=1

-- Tom

-- 
fedora-list mailing list
fedora-list@redhat.com
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines