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People are running VMs on their laptops so they can test things in an environment similar to production without having to run extra servers for every developer/
by Silhouette 7y ago
People are running VMs on their laptops so they can test things in an environment similar to production without having to run extra servers for every developer/sysadmin to test with.
Sure, but that immediately raises the next question of why those VMs are so big...
- wahern 7y agoYeah, the fixed cost of a VM context is on the order of kilobytes in the host kernel, megabytes in the guest kernel. And with VM balloon paging a guest VM acts much like a regular process in terms of memory usage. It's not VM usage that hogs memory, it's the applications, regardless of VMs.