parsort(1)

1PARSORT(1)                         parallel                         PARSORT(1)
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NAME

6       parsort - Sort (big files) in parallel
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SYNOPSIS

9       parsort options for sort
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DESCRIPTION

12       parsort uses GNU sort to sort in parallel. It works just like sort but
13       faster on inputs with more than 1 M lines, if you have a multicore
14       machine.
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16       Hopefully these ideas will make it into GNU sort in the future.
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EXAMPLE

19       Sort files:
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21         parsort *.txt > sorted.txt
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23       Sort stdin (standard input) numerically:
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25         cat numbers | parsort -n > sorted.txt
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PERFORMANCE

28       parsort is faster on a file than on stdin (standard input), because
29       different parts of a file can be read in parallel.
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31       On a 48 core machine you should see a speedup of 3x over sort.
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AUTHOR

34       Copyright (C) 2020-2022 Ole Tange, http://ole.tange.dk and Free
35       Software Foundation, Inc.
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LICENSE

38       Copyright (C) 2012 Free Software Foundation, Inc.
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40       This program is free software; you can redistribute it and/or modify it
41       under the terms of the GNU General Public License as published by the
42       Free Software Foundation; either version 3 of the License, or at your
43       option any later version.
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45       This program is distributed in the hope that it will be useful, but
46       WITHOUT ANY WARRANTY; without even the implied warranty of
47       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
48       General Public License for more details.
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50       You should have received a copy of the GNU General Public License along
51       with this program.  If not, see <http://www.gnu.org/licenses/>.
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DEPENDENCIES

54       parsort uses sort, bash, and parallel.
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