I made a stupid mistake. I was opening the same folder after changing the thumbnails option. Sorry about that.
This is a more accurate assessment. Same situation as before, regardless of the "Show thumbnails" status: -Nautilus (1st time opening the folder) takes 43 seconds -Nautilus (2nd time opening the folder) takes 3 seconds I've tried it with Ubuntu 13.04 Beta1 and the results are about the same. It seems whatever nautilus is doing the first time it opens a folder (but not the second time) is what is causing the delay. ** Tags added: raring -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/869793 Title: Nautilus is very slow when opening folders with many files Status in Nautilus: Confirmed Status in “nautilus” package in Ubuntu: Triaged Bug description: Opening folders with many files takes a long time with Nautilus, to the point it becomes unusable for folders with more than 5K files. I've measured the time it takes for folders with different amount of files to open with Nautilus and Gnome Commander. It is ~6 times faster with GC on average. In folders with ~20K files, it takes 30s with nautilus versus 6! with GC. With Nautilus ~3500 files tales 6 seconds ~7000 files takes 18 seconds ~15000 files takes 22 seconds ~20000 files takes 30 seconds With Gnome Commander ~3500 files tales <1 second ~7000 files takes 1.5 seconds ~15000 files takes 3 seconds ~20000 files takes 6 seconds These are mostly small dicom files (MRI images). I am using a 8 core 3.4Ghz and 16Gigs of RAM with Ubuntu 11.04 64-bits. Also, of course, things like selecting all files and copying them around is absurdly slow and makes nautilus unusable... but that would be another bug report (?). To manage notifications about this bug go to: https://bugs.launchpad.net/nautilus/+bug/869793/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp