Difference between pages "I/O sniffing" and "SCREENSHOT ON UBUNTU"

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You can do I/O sniffing using the command blktrace. blktrace will show you every request that goes to the disk.
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#REDIRECT [[screenshot on ubuntu]]
 
 
Example:
 
 
 
# blktrace -d /dev/sdg -o - | blkparse -i -
 
[...]
 
  <abbr title="device (major/minor number)">8,96</abbr>  <abbr title="processor">7</abbr>      <abbr title="sequence number">106</abbr>    <abbr title="timestamp">0.373952974</abbr> <abbr title="PID">11364</abbr>  <abbr title="Event">D</abbr>  <abbr title="Action">W</abbr> <abbr title="starting block + blocks">0 + 8</abbr> <abbr title="process">[kworker/7:2]</abbr>
 
  8,96  7      107    0.374456639    47  C  W 0 + 8 [0]
 
 
 
 
 
Event can be:
 
RWBS
 

Latest revision as of 21:48, 19 April 2020