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From: Filip Schauer <f.schauer@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Wed, 9 Apr 2025 16:24:19 +0200
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Subject: [pve-devel] [PATCH manager 08/12] vzdump: add support for xz
compression
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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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