WebJan 12, 2014 · Very often, this size was pre-defined by the hardware and using wrong blocking factors made the resulting tape unusable. This is why tar appends \0-filled blocks until the tar size is a multiple of the block size. 2) The file size is in octal, and contains the true size of the original file that was put into the tar. WebCurrently I'm running tar czf to combine backup files. The files are in a specific directory. But the number of files is growing. Using tzr czf takes too much time (more than 20 minutes and counting). I need to combine the files more quickly and in a scalable fashion. I've found genisoimage, readom and mkisofs.
Does tar.gz do effective file compression of large files?
WebJun 13, 2015 · The dedicated tools tar and gzip are defintely designed to work with streaming input and output which means that they can deal with input and output a lot bigger than memory. If you avoid the GUI program, you can most likely generate this archive using a completely normal everyday tar invocation like this: tar czf foo.tar.gz foo imagedetectionsfield
WebMay 18, 2013 · Once you install pigz, the tar file can be extracted with: +1. FWIW, you can also write that as tar -xvf --use-compress-program=pigz filenamehere. ( -z amounts to --use-compress-program=gzip .) Alternatively, you can even make gzip be a symlink to pigz, and keep using -zxvf. WebApr 17, 2024 · The CPU and the number of cores don't make much difference as the operation of creating a tar archive is disk-bound, not CPU-bound. You could use several tar processes running in parallel, each handling their own subset of the files, creating separate archives, but they would still need to fetch all the data from the single disk. – Kusalananda ♦ WebApr 8, 2024 · Performace is acceptable with using large files, but with rsync performance is very low. Takes a few seconds to copy a tar file (Size 2 GB) and several minutes to extract the same tar file in the same destination folder. Tar without any special options, just tar xvf . EDIT. I am using 4 TB Western Digital WD40EFRX SATA drives. image determine the value of a