I encountered the same thing here. Remastersys required casper, and
casper set the compcache to 50%.

Regardless of the fact that it may be a good thing performance wise, I
still think it's not something that should happen without the user's
knowledge.

I had to waste quite a bit of time to find out what was the source of
the 50% zram swap partition. Also, I would assume this can affect those
who want to/can otherwise use hibernate, since this is not a non
volatile swap partition.

"Additionally, compcache (according to the casper changelog) should only
be used on systems (running casper) with less than 512MB of ram."

I have 5.5 GB of available RAM. Casper apparently isn't using that 512MB
limit, or fails to determine the system's available memory properly.

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https://bugs.launchpad.net/bugs/933712

Title:
  casper configures system to use 50% ram for compressed swap post
  installation

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