Slow folder closure on Pocomail 4.8

[Quartz]

Quite frequently, usually when a folder with sub-folders has been open quite some time, it takes a very long time - tens of seconds - to close the top-level folder. It may be relevant that these folders are empty, but the subfolders are not. There are over 250K messages in one tree, and over 10K in another.

System is Windows 7 x64 Ultimate (clean install), Pocomail 4.8.0.4400. Other apps running are typically Google Chrome, Office 2008, and the usual range of applets. Antivirus is Microsoft's plus Malware Bytes. The PC has 4 GB of RAM with 3 GB currently used. I keep my PC on - and Pocomail running - 24/7 and has been up for 10 days, but I've seen the behaviour after Pocomail has been running for less than a day. Pocomail is currently using 563 MB.

I cannot reliably recreate the problem.

[aderoy]

I have this problem when 'Threading' is enabled for a message folder. Disabled and much better response.

Total of 126 folders with 154k messages in 4.8gb of mailstore.

If threading is enabled - closing or opening will take 20-50 seconds depending on the number of subfolders with threading enabled.

If threading is not enabled in ANY folder or subfolder sub 15 seconds.

Memory use without threading <100mb with threading >750mb!

System WinXP Pro SP3, Ram 3GB, HardDrive 60GB, latest ver Poco.

As always your milage may vary.

[Quartz]

Thanks. I've checked and threading is not enabled, either in Folder Properties, or in the Tools, Options, Advanced menu.