Legacy ImageMagick Discussions Archive

Hello.

Perhaps my question is trivial. But he worries me.
I use the imagemagick on linux for crop and resize operations in the streams.
How to calculate how much need RAM and CPU time to perform operations?
If I run multiple processes at the same time they will be processed one by one or all at once?

The Consulting forum is for paid consultancy, so I'm moving this to Users.

For RAM: IM v6 Q16 uses 8 bytes per pixel. There is also some overhead per image, and unpacking and compressing images also takes RAM.

For CPU: there are too many variables to predict. You can measure CPU usage.

srsd wrote:If I run multiple processes at the same time they will be processed one by one or all at once?

The question is vague. IM generally uses multi-threading, so each processing operation on an image is split between threads and hence between processors. When one operation (eg "-resize") is complete, the next one is performed.