Greetings, Jérôme Bouat! > Hello,
> I looked into the local folder where the downloaded packages are saved > before they are installed. I noticed that a few compressed archives files > are using more size than their uncompressed form. For example, the > libstdc++6-6.4.0-1.tar.xz file uses more space than its uncompressed tar file > (on cygwin x86_64). $ ls -ld "libstdc++6-6.4.0-1.tar.xz" ; tar tf "libstdc++6-6.4.0-1.tar.xz" -v -rw-r--r-- 1 anrdaemon None 282724 сен 18 20:17 libstdc++6-6.4.0-1.tar.xz -rwxr-xr-x Blue/None 1367059 2017-09-10 01:23 usr/bin/cygstdc++-6.dll $ sha512sum.exe libstdc++6-6.4.0-1.tar.xz 734f6f91003588c82bccfc016d89414cd25ea6560484391c1424513f053b3e0f3e9932e317740804c10d90e6f9fd99d4d198cf8ea953da22969aab50182f4c74 *libstdc++6-6.4.0-1.tar.xz # Matches the one in setup.ini > That is not surprising. All compression methods may sometimes inflate the > final amount of data. > Would it be a way to keep the tar archive file uncompressed if the compressed > form needs more space ? Compression MAY inflate the file, but never by an order of magnitude. At worst, it will be inflated by the size of metadata describing all blocks in order. -- With best regards, Andrey Repin Wednesday, September 27, 2017 07:43:04 Sorry for my terrible english...
