Hi Ragia, Improving the efficiency of a program usually requires detailed analysis of what it is doing and how those operations can be performed more rapidly. That is to say, without knowing what the program is supposed to accomplish and how it is doing it now, very little help can be provided. One thing you might look for is "disk-thrashing" where your storage media (e.g. hard disk) is being accessed continuously. This usually indicates that the program is swapping out data to the disk, which is typically slow compared to processing it in memory.
Jim On Tue, Mar 15, 2016 at 8:32 AM, Ragia . <ragi...@hotmail.com> wrote: > > > > > Dear group > I have two R sessions running on Ubuntu 14.0x server , and I found that my > program will take too long time to be finished( months...!), I used top > command and found that cpu usage is 21.3%. > > the server is Enterprise SP-64 - 64G E5-1630v3 SoftRaid 2x2 TB Server . 6 core > > how can I speed the program, kindly I need tutorial or book chapter that > helps.. > thanks in advance > Ragia > > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
