Beefy Boxes and Bandwidth Generously Provided by pair Networks
There's more than one way to do things
 
PerlMonks  

comment on

( [id://3333] : superdoc . print w/replies, xml ) Need Help??

Hi, my question was: how many CPUs/cores (not just CPUs) do you have. Even if you have only one (e.g. Intel) CPU, but with, say, five cores, your process might very well take more or less 100% of one core's processing power but still leave the 4 other cores almost completely idle. Since you are not forking subprocesses in your program nor using any threads, your process can basically only use one core (the system itself might be able to delegate a small fraction of its own work to another core, but this is likely to be very limited). So you might very well use 100% of one core's processing power, but only 20 or 25% of the CPU total processing power.


In reply to Re^3: Reduce CPU utilization time in reading file using perl by Laurent_R
in thread Reduce CPU utilization time in reading file using perl by madtoperl

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.