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/freebsd-9.3-release/usr.sbin/portsnap/portsnap/
H A Dportsnap.shdiff 159062 Tue May 30 05:08:41 MDT 2006 cperciva Use some features of sh(1) which I didn't know about until today ("read"
can read two variables at once; and suffix pattern deletion) to make the
extract command fork fewer processes.

With the portsnap snapshot and the ports tree in swap-backed memory
disks on my 1.4GHz laptop, this reduces 178800 processes and 195/56/126
seconds of real/user/sys time to 44600 processes and 103/34/60 seconds.

Completed in 162 milliseconds