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spl

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spl /S·P·L/

[abbrev, from Set Priority Level] The way traditional Unix kernels implement mutual exclusion by running code at high interrupt levels. Used in jargon to describe the act of tuning in or tuning out ordinary communication. Classically, spl levels run from 1 to 7; “Fred's at spl 6 today” would mean that he is very hard to interrupt. “Wait till I finish this; I'll spl down then.” See also interrupts locked out.

The Jargon File

Cartoons

The crunchly saga

The infamous Crunchly cartoons by The Great Quux are woven into the lexicon, each next to an appropriate entry. To read them in the sequence in which they were written, chase pointers from here using the ‘next cartoon’ information in the captions.