sys-rele(2) - Unix First Edition Manual Page
11/3/71SYS_RELE (II)

NAME rele -- release processor
SYNOPSIS sys rele / rele = 0; not in assembler
DESCRIPTION This call causes the process to be swapped out immediately if anotherprocess wants to run. Its main reason for being is internal to the


system, namely to implement timer--runout swaps. However, it can beused beneficially by programs which wish to loop for some reason without consuming more processor time than necessary.
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OWNER ken, dmr