Using Stats in Php Post: 302484286

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I/O Stats Metrics

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system stats

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5. Linux

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'time' for disk stats

we all know the time shell command Is there a way to test disk i/o of a process in a similar fashion? I am trying different methods to limit disk writes in a 24/7 daemon process and would like to measure. I know pidstat does it but only to a running process, i want to do one shot test...

LEARN ABOUT PHP

filemtime

FILEMTIME(3)								 1							      FILEMTIME(3)

filemtime - Gets file modification time

SYNOPSIS

       int filemtime (string  $filename)

DESCRIPTION

	This  function	returns  the time when the data blocks of a file were being written to, that is, the time when the content of the file was
       changed.

PARAMETERS

	      o $filename
		- Path to the file.

RETURN VALUES

	Returns the time the file was last modified, or FALSE on failure. The time is returned as a Unix timestamp,  which  is	suitable  for  the
       date(3) function.

EXAMPLES

       Example #1

	      filemtime(3) example

	      <?php
	      // outputs e.g.  somefile.txt was last modified: December 29 2002 22:16:23.

	      $filename = 'somefile.txt';
	      if (file_exists($filename)) {
		  echo "$filename was last modified: " . date ("F d Y H:i:s.", filemtime($filename));
	      }
	      ?>

ERRORS
/EXCEPTIONS
	Upon failure, an E_WARNING is emitted.

NOTES

       Note

	      Note that time resolution may differ from one file system to another.

       Note

	      The results of this function are cached. See clearstatcache(3) for more details.

       Tip

	      As  of  PHP  5.0.0,  this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine
	      which wrappers support stat(3) family of functionality.

SEE ALSO

       filectime(3), stat(3), touch(3), getlastmod(3).

PHP Documentation Group 													      FILEMTIME(3)