GH is going to get stuck!

Hi there,

I have a definition that calculate a lot of data and is starting to use a lot of memory.

As you can see from the screenshot, just opening the definition, it takes 10sec just with a blank rhino file and without any data.

I can manage hundreds of lines (input data), but over 3 or 4 thousands it get stuck.

I realised that the RAM use reach the maximum (8 Gb in my case) and CPU doesn't work (1% for Rhino process).

Is it possible to control the RAM use in order to arrive at 75% of RAM, in order to keep CPU working?

Needless to say, that I have to optimise my definition!

Thank you

Replies to This Discussion

Permalink Reply by David Rutten on December 11, 2014 at 9:55am

Memory use is what it is. When you start to need more memory than your RAM has, the computer starts using the hard drive as a memory stand-in (this is called "paging") and that absolutely tanks performance.

In some cases it's possible to reduce the memory footprint, but it really needs a case-by-case analysis. Do you know where most of the data is stored and what sort of types? Breps, numbers, meshes, bitmaps?

Permalink Reply by User on December 11, 2014 at 10:10am

thanks David. It's what I'm doing now (checking the heavier components). Is there any list where I can see what works more than another?

Permalink Reply by David Rutten on December 11, 2014 at 11:36am

Unfortunately no. As easy as it is to profile time, it's that difficult to profile memory. A lot of memory is shared between different parts of the program, so you also have to be careful not to count some data twice. Then it's even harder because some memory is maintained by the .NET garbage collector, while other memory is managed by Rhino itself.

Permalink Reply by WP Lee on May 3, 2017 at 11:05am

How about the global memory foot print? E.g. I found "memory" enumerated in Grasshopper.Kernel.GH_ProfilerMode. It's description is "Indicates memory footprint is being measured". How is data being accessed?

Permalink Reply by David Rutten on May 3, 2017 at 12:40pm

It isn't, that part of the profiler was never implemented.

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