tar gzip with or without GZIP=-9

target folder name: 2019_02
target folder size: 1.3G




tar -cvzf 2019_02.default.tgz 2019_02
Compressed: 318M 2019_02.default.tgz



GZIP=-9 tar -cvzf 2019_02.GZIP=-9.tgz 2019_02
Compressed: 310M 2019_02.GZIP=-9.tgz