UPDATE: It’s been a few days now and my computer runs well below the max of memory and my fan runs at a minimum if at all. Looking at the Mac Activity Monitor, Docker uses a lot less memory. Open “Docker” > “Preferences” > “Resources” and reduce the number of CPUs and Memoryĭone! My computer runs faster and quieter now. This explained WHAT was going on and the CLUE on how to fix it.īeing that Docker allocates more memory than it uses (but forces Mac to act like it uses those resources), I needed to change how much Memory. To solve the performance issue we can use docker -sync. Developing with docker under OSX/Windows is a huge pain, since sharing your code into containers slows down the code-execution. …the “Real Memory” usage is much lower than what you see in the “Memory” column in Activity Monitor … To see the “Real Memory” used by Docker, right-click the column names in Activity Monitor and Select “Real Memory”. A couple of years ago, Will Pleasant-Ryan wrote Docker for Mac: Overcoming Slow Mounted Volumes, describing his desire to use Docker for local development. The fact of the matter is, Docker for Mac has terribly slow IO performance compared to on Linux machines. Immediately I Googled and found the Stack Overflow post “ Docker Mac Memory Usage in “. My Mac fan would work like a jet engine and all apps would grind to a halt. Docker mac memory usage takes up 6GB to 8GB by default on install.
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