rabbe@infolog.se (Rabbe Fogelholm) (07/03/90)
Our system currently runs SR9.7, but we would like to upgrade to SR10. However, HP/Apollo in Sweden has recommended that DN3000 nodes with 4 Mbyte of memory should be upgraded to 8 Mbyte. How important is it to have 8 Mbyte per node? Most of our work consists of text editing, Unix-style file manipulation, DSEE operations, and DPCC sessions. We also have a few DN300 and DSP80 nodes with just 2 Mbyte, doing things like wbak and rnews. How will they perform under SR10 if we insist on using them with 2 Mbyte? --Rabbe Fogelholm, Infologics, Sollentuna, Sweden (rabbe@infolog.se)
krowitz%richter@UMIX.CC.UMICH.EDU (David Krowitz) (07/03/90)
4 Mb of memory on a DN3000 is ok for editing, text processing and the like. If you are doing debugging (ie. using the Apollo DDE debugger) or compiling on the node, you will want 8 Mb of memory. The SR10 debugger is a memory hog, and the compilers will page thrash when compiling any file of more than 100 to 200 lines of code on a 4 Mb machine. We have booted 2 Mb diskless DN330's under SR10.2 and they are *slow*. You can only work in one window at a time with any speed. Trying to compile even a small program in one window while editing a file in another is almost impossible due to the poor response of the DM editor. In general, a 4 MB machine running SR10 acts more like a 2 Mb machine running SR9.7, and a 2 MB machine running SR10 has the response of a 1 MB machine running SR9.7. -- David Krowitz krowitz@richter.mit.edu (18.83.0.109) krowitz%richter.mit.edu@eddie.mit.edu krowitz%richter.mit.edu@mitvma.bitnet (in order of decreasing preference)