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Merge pull request #4136 from restic/doc-small-files

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doc: Clarify text about tuning backups for small files
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Michael Eischer 2023-01-08 22:00:09 +01:00 committed by GitHub
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2 changed files with 5 additions and 5 deletions
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2
cmd/restic/cmd_backup.go
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@ -123,7 +123,7 @@ func init() {
f.BoolVar(&backupOptions.Stdin, "stdin", false, "read backup from stdin")
f.StringVar(&backupOptions.StdinFilename, "stdin-filename", "stdin", "`filename` to use when reading from stdin")
f.Var(&backupOptions.Tags, "tag", "add `tags` for the new snapshot in the format `tag[,tag,...]` (can be specified multiple times)")
f.UintVar(&backupOptions.ReadConcurrency, "read-concurrency", 0, "read `n` files concurrently. (default: $RESTIC_READ_CONCURRENCY or 2)")
f.UintVar(&backupOptions.ReadConcurrency, "read-concurrency", 0, "read `n` files concurrently (default: $RESTIC_READ_CONCURRENCY or 2)")
f.StringVarP(&backupOptions.Host, "host", "H", "", "set the `hostname` for the snapshot manually. To prevent an expensive rescan use the \"parent\" flag")
f.StringVar(&backupOptions.Host, "hostname", "", "set the `hostname` for the snapshot manually")
err := f.MarkDeprecated("hostname", "use --host")

8
doc/047_tuning_backup_parameters.rst
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@ -54,10 +54,10 @@ variable ``RESTIC_COMPRESSION``.
File Read Concurrency
=====================
When backing up fast storage like NVME disks, it can be beneficial to increase the read
concurrency. This can increase the overall performance of the backup operation by reading
more files in parallel. You can specify the concurrency of file reads with the
``RESTIC_READ_CONCURRENCY`` environment variable or the ``--read-concurrency`` flag for
When backing up files from fast storage like NVMe disks, it can be beneficial to increase
the read concurrency. This can increase the overall performance of the backup operation
by reading more files in parallel. You can specify the concurrency of file reads with the
``RESTIC_READ_CONCURRENCY`` environment variable or the ``--read-concurrency`` option of
the ``backup`` command.