| PARSORT(1) | parallel | PARSORT(1) |
parsort - Sort (big files) in parallel
parsort options for sort
parsort uses GNU sort to sort in parallel. It works just like sort but faster on inputs with more than 1 M lines, if you have a multicore machine.
Hopefully these ideas will make it into GNU sort in the future.
Sort files:
parsort *.txt > sorted.txt
Sort stdin (standard input) numerically:
cat numbers | parsort -n > sorted.txt
parsort is faster on a file than on stdin (standard input), because different parts of a file can be read in parallel.
On a 48 core machine you should see a speedup of 3x over sort.
Copyright (C) 2020-2022 Ole Tange, http://ole.tange.dk and Free Software Foundation, Inc.
Copyright (C) 2012 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or at your option any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
parsort uses sort, bash, and parallel.
sort
| 2022-12-18 | 20221122 |