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Make ManagedSelector report better JMX data #5787

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sbordet opened this issue Dec 10, 2020 · 1 comment · Fixed by #5910
Closed

Make ManagedSelector report better JMX data #5787

sbordet opened this issue Dec 10, 2020 · 1 comment · Fixed by #5910
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@sbordet
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sbordet commented Dec 10, 2020

Jetty version
9.4.x

Description
ManagedSelector should be enhanced to report useful information via JMX.

For example:

  1. Number of select() wakeups
  2. How many keys were selected for each wakeup
  3. How many keys each selector manages
  4. How long it takes to process selected keys
  5. How long select() operations lasts (i.e. how long it's "idle")
  6. Etc.
@sbordet
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sbordet commented Jan 22, 2021

@gregw @lorban after our investigation, I think it's useful to report (per selector):

  • total keys
  • average selected keys
  • max selected keys
  • number of select() calls

@sbordet sbordet assigned sbordet and unassigned lorban Jan 22, 2021
sbordet added a commit that referenced this issue Feb 3, 2021
…r_jmx

Fixes #5787 - Make ManagedSelector report better JMX data.
@sbordet sbordet closed this as completed in 755ec45 Feb 3, 2021
@sbordet sbordet linked a pull request Feb 3, 2021 that will close this issue
This was referenced Mar 10, 2021
This was referenced Mar 10, 2021
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2 participants