rpm -q pigzPigz does NOT help with uncompressing.
Computer Tips - Make gzip compress faster
Date: 2012apr10 OS: Linux Q. Make gzip compress faster A. You can use the --fast flag for gzip. That may make the output file compression less small. If your computer has multiple cores try pigz... http://zlib.net/pigz/ And since pigz supports all the command line options of gzip you can use the --fast option for pigz! On RedHat/Fedora/CentOS you probably already have it installed. Try: