* Uli Armbruster <uli.armbrus...@googlemail.com> [27.08.2011 14:34]: > * Gerardo Exequiel Pozzi <vmlinuz...@yahoo.com.ar> [27.08.2011 09:12]: > > On 08/27/2011 12:42 AM, Madhurya Kakati wrote: > > >Hi, > > >My system tends to slow down a lot when I copy files to and from a pen > > >drive or even from one hard disk to another. Even my mouse cursor > > >slows down. The system becomes almost unusable. I more than enough RAM > > >and I am using a tiling window manager. So I am not even using a lot > > >of RAM. Why is this happening? I can't work on my system if I run any > > >large file copy/move operation. Please help. > > >Thanks. > > > > > If you have 1GiB or more of RAM, one cause in recent kernels can be > > transparent hugepages. Disable it from boot with > > transparent_hugepage=never on kernel cmd param. > > Maybe this is fixed in newer 3.0, I do not know, I still have > > disable, some day I will test again if was improved. > > This happens on my machine as well. The reason is, that the kernel swaps much > more with linux 3.0 than 2.6.39. It moves programs into swap to get more > space in ram for cache, which imo is a really stupid idea. This happens with > cfs and bfs here.
Forgot one thing: https://bugzilla.kernel.org/show_bug.cgi?id=40262 That's what's going on.
