On Sat, Aug 27, 2011 at 3:11 PM, Gerardo Exequiel Pozzi <vmlinuz386@xxxxxxxxxxxx> wrote: > 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. > > -- > Gerardo Exequiel Pozzi > \cos^2\alpha + \sin^2\alpha = 1 > > will transparent_hugepage=madvise be saner so that apps that do benefits from transparent hugepages and explicitly asked for it can have this feature available? unfortunately, i have no idea whether cp and mv are using these features. ;-) best regards,
