In the last few months both my home and personal PCs have been updated to new Win7 64-bit machines. I have an i7 at home and an i5 at work. I am running MATLAB 2012b (64-bit) at work and the same (I think) at home. Bags of memory (16GB and 8GB respectively).
I am getting very high latencies when I try to do operations such as copy-pasting blocks in Simulink. Doing CTRL-C on a block and then CTRL-V often sends the MATLAB process off, gobbling up 100% of one of my i5 cores or i7 hyperthreads, for up to a minute (or more occasionally). The wait times when developing code are just horrendous. It is much slower than the process for editing similar code under 32-bit systems on older MATLAB 32-bit versions. What's happened between 2011 (32-bit) and 2012b?
Some of my models are quite large and I make extensive use of a Simulink library (my own) which was 10MB as a mdl but now ~1MB as an slx. I wondered whether changing all my models from old .mdls to .slxs might bring the performance back to something like what it was under 2011 (and previous) versions, but it seems to make no difference. Win7, 64-bit, i5 and i7 with 2012+ is much much slower than 32-bit 2011 versions, for all Simulink editing functions. Why?
I just tried to run the model advisor on my ~1MB simulink library to search for any disabled links, but that seems to just hang 2012b with MATLAB using 100% of 1 core, stuck on "updating model heirarchy". I waited 5 minutes but it never moved.
Its particularly frustrating because the mouse pointer never changes to an hourglass or anything. You don't know what MATLAB is doing except by watching an independent CPU-monitoring application. For instance, after CTRL-C, you need to wait for MATLAB CPU activity to drop to zero, (1-60 second wait?) before pressing CTRL-V. If you don't wait and press CTRL-V too early, nothing appears to happen. If you do CTRL-V again, then EVENTUALLY, you get more than one new block.
I'm on Win7 (Pro at home I think) and Win7 Enterprise at work. Both 64 bit.
What's going on with this. Should I try 2013 versions? Has anyone else had problems with 2012 and are there any known fixes for such slow editing processes in 2013 versions?