[pve-devel] [PATCH manager 08/12] vzdump: add support for xz compression

[Filip Schauer <f.schauer@proxmox.com>]

Signed-off-by: Filip Schauer <f.schauer@proxmox.com>
---
 PVE/VZDump.pm                                  | 7 +++++++
 www/manager6/form/BackupCompressionSelector.js | 1 +
 2 files changed, 8 insertions(+)

diff --git a/PVE/VZDump.pm b/PVE/VZDump.pm
index 06a887a3..0b99f88d 100644
--- a/PVE/VZDump.pm
+++ b/PVE/VZDump.pm
@@ -872,6 +872,13 @@ sub compressor_info {
 	} else {
 	    return ('gzip --rsyncable', 'gz');
 	}
+    } elsif ($opt_compress eq 'xz') {
+	my $xz_threads = $opts->{xz} // 1;
+	if ($xz_threads == 0) {
+	    my $cpuinfo = PVE::ProcFSTools::read_cpuinfo();
+	    $xz_threads = int(($cpuinfo->{cpus} + 1)/2);
+	}
+	return ("xz --threads=$xz_threads", 'xz');
     } elsif ($opt_compress eq 'zstd') {
 	my $zstd_threads = $opts->{zstd} // 1;
 	if ($zstd_threads == 0) {
diff --git a/www/manager6/form/BackupCompressionSelector.js b/www/manager6/form/BackupCompressionSelector.js
index df2091f3..355b7880 100644
--- a/www/manager6/form/BackupCompressionSelector.js
+++ b/www/manager6/form/BackupCompressionSelector.js
@@ -5,6 +5,7 @@ Ext.define('PVE.form.BackupCompressionSelector', {
                 ['0', Proxmox.Utils.noneText],
                 ['lzo', 'LZO (' + gettext('fast') + ')'],
                 ['gzip', 'GZIP (' + gettext('good') + ')'],
+                ['xz', 'XZ (' + gettext('slow but very good') + ')'],
                 ['zstd', 'ZSTD (' + gettext('fast and good') + ')'],
                 ['bzip2', 'BZIP2 (' + gettext('good') + ')'],
     ],
-- 
2.39.5



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