SvcHost is one of them, it's basically a generic host process for services that run from DLLs. The feature was added in the Windows NT days as a way to group various services together, in effort to reduce memory and processor usage. It made Windows easier to run on low-end hardware but made it harder to figure out what's eating up all your resources.
Starting with Windows 10 Build 14942, Microsoft will no longer use SvcHost for computer systems that have over 3.5GB of RAM. Users will be getting more transparency but the downside is that it will slightly increase memory consumption, but it's not clear by how much.
Now that SvcHost is dead, the big gain is user transparency. While it was possible to decipher what a specific SvcHost would do, it isn’t an easy task for the uninitiated. Hopefully, this will mean users will be able to troubleshoot their system better and find out whats eating up all their resources. A side benefit is that malware won’t be able to hide in SvcHost as well though they’ll likely find a new way. There is no word yet when the build will be pushed to the general population but it’ll hopefully happen soon.