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In Windows XP, one of the columns for the network tab in task manager that I can add is Bytes Per Interval. So what amount of time in seconds is a 'Microsoft Interval', 1.2?

I see there is 'Update Speed', but that is just Low, Normal, High .. Also totally useless ...

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up vote 2 down vote accepted

If you go to the View tab in the Update Speed submenu and hover over the 4 different speeds you will get an explanation of what the intervals are in the status bar at bottom of the window.

  • High = 2 updates / second
  • Normal = 1 update / 2 seconds
  • Low = 1 update / 4 seconds
  • Paused = well, you can figure that out...
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Happy 10K day! (And now, I type this to satisfy the 15 character minimum... joy...) – Evan Anderson Oct 2 '09 at 2:07
Cheers :) Thanks, Kyle, for pushing me over! – squillman Oct 2 '09 at 2:35
Happy 10k day Shawn!! – Sam Oct 2 '09 at 10:21
Thanks mate! :) – squillman Oct 2 '09 at 12:12
You guys are silly :-) You're welcome for pushing you over squillman, but thanks for the answer ;-) – Kyle Brandt Oct 2 '09 at 12:45

The interval duration depends on the Update Speed setting in the View Menu.

  • High = Updates every 0.5 seconds
  • Normal = Updates every second
  • Low = Updates every 4 seconds

You can find this and more in this Technet article.

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Interesting, you guys don't agree on what the Normal Interval is, but maybe that is because the Technet link is for Win 2000 ... – Kyle Brandt Oct 1 '09 at 19:10
Yeah, I'm looking at it on my XP box and the literal verbiage is "Updates the display every 2 seconds" – squillman Oct 1 '09 at 19:15
The default behaviour is 1 second and the update speed menu indicates this is "Normal" but changing it appears to be buggy. If you change it from the default then Normal sets it to 2 seconds as squillman points out. To reset it back to 1 second you have to do some registry hacking it appears. This is news to me but you learn something new every day. – Helvick Oct 1 '09 at 19:28

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