Ticket #635 (new enhancement)

Opened 11 years ago

Last modified 9 years ago

we need a login process profiler

Reported by: geofft Owned by:
Priority: low Milestone: The Distant Future
Component: -- Keywords:
Cc: Fixed in version:
Upstream bug:

Description

I suspect what's going on in Next House is as mundane as that the network is slow and so fetching my homedir out of AFS takes a while, but it would be great to have some hard data behind this.

I think kcarnold suggested using  bootchart and letting it run through the login process, back when we were doing LVM snapshots. Fortunately we knew that was the hotspot and were able to change it to aufs (#97), but logins still aren't as fast as I'd like, and they can always be faster.

Change History

comment:1 Changed 11 years ago by jdreed

And a logout process profiler, since logouts take ~5-10 seconds longer on Lucid than they did on Jaunty.

comment:2 Changed 10 years ago by jdreed

  • Milestone changed from Natty Alpha to Natty Release

comment:3 Changed 9 years ago by jdreed

  • Priority changed from normal to low
  • Milestone changed from Precise Beta to The Distant Future

I spent a fair bit of time doing this while debugging #1052. The big timesinks really are network based, though there's also #954.

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