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Old 04-03-2007, 01:10 PM   #1
harsshal
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performance check


hello friends,i'm doing a project in linux in which i'm changing some kernel code.but now ,i dont know how to check the performance of the new kernel.how do i compare the new one with the old one?
 
Old 04-03-2007, 01:37 PM   #2
ramram29
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Exactly what are you trying to compare, disk I/O, memory or cpu consumption. For disk I/O you can try running iostat, for memory run free or exmap, for cpu run top.
 
Old 04-03-2007, 05:54 PM   #3
studioj
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there are some benchmarking programs around like lmbench
http://lmbench.sourceforge.net/
and other unix benchmarking tools
some of them run some of them don't depending on your machine but you can find something
 
Old 04-04-2007, 01:47 AM   #4
harsshal
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i'm changing the page size in linux.so i wanted to check the performance of new papge size as compared to old one.mostly in terms of CPU performance...Could you plz explain me what is "top"??
 
Old 04-04-2007, 09:02 AM   #5
timmeke
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"top" is a command that lists the currently running processes and their CPU usage, as well as the total CPU load. Just try it and you'll see...
 
  


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