Implement recommendations from low-level performance study (undocument compress levels 7-9 in the GUI, since they do nothing but increase CPU usage, set the default compress level to 1, and include a note that levels higher than 3 are rarely useful)


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4632 3789f03b-4d11-0410-bbf8-ca57d06f2519
2 files changed