cvs up has become very slow on arm64

[Christian Weisgerber]

A cvs up of /usr/src with the repository mounted over NFS has become
very slow on arm64 (OverDrive 1000).  Two runs:
   38m22.67s real     0m08.83s user     0m29.80s system
   36m42.89s real     0m08.27s user     0m24.29s system

By comparison, an APU2 with the repository mounted from the same
server:
    4m45.95s real     0m28.28s user     1m39.97s system
    4m45.52s real     0m27.06s user     1m40.01s system

-- 
Christian "naddy" Weisgerber                          na...@mips.inka.de