I'm assessing my linux-box for performance, with various desktop-env's and applications. This might provide me useful info for working with my device with optimal performance. As far as now,
Ubuntu + Gnome-classic-session takes upto 310 MiB of memory. Ubuntu + xfce-session takes upto 270 MiB of memory.
Though xfce takes less of ram, it looks totally primitive and seems not much faster than gnome-classic. So, I'm gonna swap back to gnome-classic at a cost of 30-40 megabytes of memory, for its simple and elegant looks.
Ubuntu + Gnome-classic-session + Chrome(average of four tabs open at all times) takes upto 550 megabytes, with the gmail tab alone taking around 70,000 K of RAM, which apparently is more than all the other tabs combined together. i.e the browser itself eats upto 46,000K of memory while the tabs(#4) put together including gmail, takes upto 220,000K. Thus on the whole, an average browsing session might space upto 210MiB of physical memory.
That was with chrome. With Mozilla however, Mozilla on the whole takes only upto 126,000K of memory, which is incredibly lesser than chrome. This is including the Gmail tab opened. i.e gmail takes almost 60MiB of memory and the other three tabs together takes another 65MiB.
So, probably working in gonme-classic + mozilla - gmail(tab) will get me into the optimal state, to work on with other heavy applications with Eclipse and Android Emulator, Sublime Text etc. running simultaneously