[CentOS] Slow performance

Ashley M. Kirchner ashley at pcraft.com
Mon Apr 30 22:31:48 UTC 2007


Scott Lamb wrote:
> $ make clean
> $ time make -j1
> $ make clean
> $ time make -j8
    So, as you guessed, j1 took just under 10 minutes whereas j8 took 
under 2.  Which is what I would expect.  Okay, thanks for the help.  
It's time I go beat up our vendor now.  As far as  understand their 
explanation is that they simply call the thumbnail creation routine 
sequentially, one image at a time, which in turn goes to PHP which then 
goes to Apache.  And as far as the OS is concerned, it received 1 single 
call from Apache to do something, as opposed to multiple calls at the 
same time.

    Would that be a reasonable explanation (of why their process takes 
so long)?  Because they're not spawning multiple calls ... ?

-- 
W | It's not a bug - it's an undocumented feature.
  +--------------------------------------------------------------------
  Ashley M. Kirchner <mailto:ashley at pcraft.com>   .   303.442.6410 x130
  IT Director / SysAdmin / Websmith             .     800.441.3873 x130
  Photo Craft Imaging                       .     3550 Arapahoe Ave. #6
  http://www.pcraft.com ..... .  .    .       Boulder, CO 80303, U.S.A. 





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