Closed Bug 1563863 Opened 6 years ago Closed 5 years ago

Hang at startup for several minutes with high cpu if "Find Events" is open listing "All Events" - show all calendar data actually loads data.

Categories

(Calendar :: General, defect)

Product:
Calendar
Component:
General
Version:
Lightning 6.2
Type:
defect
Priority:
Not set
Severity:
critical

Tracking

(Not tracked)

Status:
RESOLVED INCOMPLETE

People

(Reporter: fulvio, Unassigned)

Details

(Keywords: perf)

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:67.0) Gecko/20100101 Firefox/67.0

Steps to reproduce:

I have many CalDAV calendars (Google, Davical, DavMail) with a lot of events. Leave open the "Find Events" list with the item "All Events" selected and restart Thunderbird.

Actual results:

Thunderbird is unresponsive for many minutes, cpu at 100%.
If at startup the "Find Events" list is closed, or the selection is not "All Events", or the calendars are simply unchecked the problem does not occur. Opening "Find Events" after startup does not cause the problem (the list of events is created quickly).
This problem also exists in earlier versions.
Possibly related to bug 1266146

Expected results:

Thunderbird should work after a few seconds.

Severity: normal → major
Keywords: perf

Known behavior. This is usually one of the first things that is recommended to be switched off if someone complains about performance. Because if you instruct Lightning to show all calendar data it will actually load all calendar data.

Severity: major → critical
Summary: Hang at startup for several minutes if "Find Events" is open listing "All Events" → Hang at startup for several minutes if "Find Events" is open listing "All Events" - show all calendar data actually loads data.
Whiteboard: [dupeme]

This bug seems duplicate of Bug 1502923...

(In reply to Fulvio Fusco from comment #0)

...
I have many CalDAV calendars (Google, Davical, DavMail) with a lot of events. Leave open the "Find Events" list with the item "All Events" selected and restart Thunderbird.

Fulvio, Is beta better? If so, then is likely bug 1502923
https://www.thunderbird.net/#channel

Flags: needinfo?(fulvio)
Summary: Hang at startup for several minutes if "Find Events" is open listing "All Events" - show all calendar data actually loads data. → Hang at startup for several minutes with high cpu if "Find Events" is open listing "All Events" - show all calendar data actually loads data.
Status: UNCONFIRMED → RESOLVED
Closed: 5 years ago
Flags: needinfo?(fulvio)
Resolution: --- → INCOMPLETE
Whiteboard: [dupeme]
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