Krystian Pieæko <messor@poczta.fm> [2003-09-01 20:59]:
> alias emerge="nice -n 11 emerge"

or in this way:

$ grep -i nice /etc/make.conf
# PORTAGE_NICENESS provides a default increment to emerge's niceness level.
# Note: This is an increment. Running emerge in a niced environment will
PORTAGE_NICENESS=19



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