BORG-BENCHMARK-CRUD(1)         borg backup tool         BORG-BENCHMARK-CRUD(1)

NAME
       borg-benchmark-crud  -  Benchmark  Create, Read, Update, Delete for ar-
       chives.

SYNOPSIS
       borg [common options] benchmark crud [options] REPOSITORY PATH

DESCRIPTION
       This command benchmarks borg CRUD (create, read, update, delete) opera-
       tions.

       It  creates  input data below the given PATH and backups this data into
       the given REPO.  The REPO must already exist (it could be a fresh empty
       repo  or  an  existing  repo, the command will create / read / update /
       delete some archives named borg-benchmark-crud* there.

       Make sure you have free space there, you'll  need  about  1GB  each  (+
       overhead).

       If  your  repository is encrypted and borg needs a passphrase to unlock
       the key, use:

          BORG_PASSPHRASE=mysecret borg benchmark crud REPO PATH

       Measurements are done with different input file sizes and counts.   The
       file contents are very artificial (either all zero or all random), thus
       the measurement results do not  necessarily  reflect  performance  with
       real  data.   Also,  due to the kind of content used, no compression is
       used in these benchmarks.

       C- == borg create (1st archive creation, no  compression,  do  not  use
       files cache)
              C-Z-  == all-zero files. full dedup, this is primarily measuring
              reader/chunker/hasher.  C-R- == random files. no dedup,  measur-
              ing throughput through all processing stages.

       R- == borg extract (extract archive, dry-run, do everything, but do not
       write files to disk)
              R-Z- == all zero  files.  Measuring  heavily  duplicated  files.
              R-R-  == random files. No duplication here, measuring throughput
              through all processing stages, except writing to disk.

       U- == borg create (2nd archive creation of unchanged input files,  mea-
       sure files cache speed)
              The  throughput value is kind of virtual here, it does not actu-
              ally read the file.  U-Z- ==  needs  to  check  the  2  all-zero
              chunks' existence in the repo.  U-R- == needs to check existence
              of a lot of different chunks in the repo.

       D- == borg delete archive (delete last remaining archive, measure dele-
       tion + compaction)
              D-Z-  ==  few chunks to delete / few segments to compact/remove.
              D-R- == many chunks to delete / many segments to compact/remove.

       Please note that there might be quite some variance in  these  measure-
       ments.   Try  multiple measurements and having a otherwise idle machine
       (and network, if you use it).

OPTIONS
       See borg-common(1) for common options of Borg commands.

   arguments
       REPOSITORY
              repository to use for benchmark (must exist)

       PATH   path were to create benchmark input data

SEE ALSO
       borg-common(1)

AUTHOR
       The Borg Collective

                                  2021-03-22            BORG-BENCHMARK-CRUD(1)

Czas wygenerowania: 0.00024 sek.

Created with the man page lookup class by Andrew Collington.
Based on a C man page viewer by Vadim Pavlov
Unicode soft-hyphen fix (as used by RedHat) by Dan Edwards
Some optimisations by Eli Argon
Caching idea and code contribution by James Richardson

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