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| author | Mark Johnston <markj@FreeBSD.org> | 2024-04-04 14:54:25 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2024-04-04 14:54:25 +0000 |
| commit | d1801babad495be2a3eb1d974e1daf9714c5b0fd (patch) | |
| tree | b9a3fee7dada4cce7c4d0c4377a906a5965ec184 /share/man | |
| parent | 91eca18551554b7aca80fcfd3c648f524b321252 (diff) | |
| download | src-d1801babad495be2a3eb1d974e1daf9714c5b0fd.tar.gz src-d1801babad495be2a3eb1d974e1daf9714c5b0fd.zip | |
Diffstat (limited to 'share/man')
| -rw-r--r-- | share/man/man5/tarfs.5 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/share/man/man5/tarfs.5 b/share/man/man5/tarfs.5 index 29999b8066f7..5378491b9c9f 100644 --- a/share/man/man5/tarfs.5 +++ b/share/man/man5/tarfs.5 @@ -61,6 +61,19 @@ sysctl setting and tunable. Setting it to 0 will reset it to its default value. Note that changes to this setting only apply to filesystems mounted after the change. +.Pp +When the backing tar file is compressed with +.Xr zstd 1 , +I/O performance can be improved by ensuring that compressed data is +broken up into multiple frames. +This helps minimize unnecessary decompression work. +When using +.Xr bsdtar 1 +to create the tar file, this can be achieved using the +.Cm zstd:max-frame-size +and +.Cm ztsd:frame-per-file +options. .Sh DIAGNOSTICS If enabled by the .Dv TARFS_DEBUG |