Closed Bug 1762353 Opened 3 years ago Closed 3 months ago

Slow saving to IMAP folders on network share. Local drive performance is good.

Categories

(Thunderbird :: General, defect)

Product:
Thunderbird
Component:
General
Version:
Thunderbird 91
Type:
defect

Tracking

(Not tracked)

Status:
RESOLVED INCOMPLETE

People

(Reporter: adam, Unassigned)

Details

(Keywords: dupeme, perf)

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0

Steps to reproduce:

  1. Setup Thunderbird with profile folder on network share (Windows 10), hosted on a server box on local network (old box)
  2. Bought new server box and copied profile folder over to new server (new box)
  3. Added new mapped drive with drive letter in Windows
  4. Open Thunderbird with -p to get profile manager, changed profile location to match new drive letter
  5. Started Thunderbird

Actual results:

Thunderbird started OK and everything looked fine but then when saving drafts or sending these took over a minute in some cases and many seconds to save back to the IMAP folder.

At first I thought my new box was broken but it gets faster write speeds from the same computer than the old box when testing using "LAN speed test".

Then I uninstalled my antivirus software, this did not make a difference. I tried various other troubleshooting methods and none worked (e.g. safe mode, Troubleshooting mode etc.)

Then I thought the only other item that had changed was the drive letter. So I unmounted the network shares and remounted them with the same drive letters as before and hey presto Thunderbird works as before with no slow saving .

Expected results:

Thunderbird working with a different drive letter should not affect the performance of saving emails to IMAP folders.

Do you have filters or virtual (saved) folders?

Flags: needinfo?(adam)
Keywords: perf

I have one filter (not enabled). I have never used virtual (saved) folders or saved search folders. I have two IMAP accounts (and their numerous folders) and 6 local folders.

Flags: needinfo?(adam)

Thanks. This is a known issue.

Component: Untriaged → General
Keywords: dupeme
Summary: Slow saving to IMAP folders after moving folder to another drive → Slow saving to IMAP folders on network share. Local drive performance is good.

Hi Wayne, thank you for confirming. Is there anything I can do to help?

(In reply to Adam from comment #4)

Hi Wayne, thank you for confirming. Is there anything I can do to help?

Using the latest version (we're now at 128), please obtain a performance profile https://support.mozilla.org/en-US/kb/profiling-thunderbird-performance

Thanks

Flags: needinfo?(adam)
Status: UNCONFIRMED → RESOLVED
Closed: 3 months ago
Flags: needinfo?(adam)
Resolution: --- → INCOMPLETE
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