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backup: add option for file read concurrency

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Kyle Brennan
2020-03-19 00:44:34 +00:00
committed by Michael Eischer
parent 9ec7eee803
commit 4a501d7118
4 changed files with 33 additions and 4 deletions
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10
doc/047_tuning_backup_parameters.rst
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@@ -51,6 +51,16 @@ only applied for the single run of restic. The option can also be set via the en
variable ``RESTIC_COMPRESSION``.
File Read Concurrency
=====================
In some instances, such as backing up traditional spinning disks, reducing the file read
concurrency is desired. This will help reduce the amount of time spent seeking around
the disk and can increase the overall performance of the backup operation. You can specify
the concurrency of file reads with the ``RESTIC_FILE_READ_CONCURRENCY`` environment variable
or the ``--file-read-concurrency`` flag for the ``backup`` subcommand.
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=========