[pve-devel] [PATCH qemu-server v1 1/5] fix #6370: virtiofs: add support for thread-pool-size option

[Markus Frank]

Allows tuning the number of worker threads used by virtiofsd.

Signed-off-by: Markus Frank <m.fr...@proxmox.com>
---
 PVE/QemuServer/Virtiofs.pm | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/PVE/QemuServer/Virtiofs.pm b/PVE/QemuServer/Virtiofs.pm
index cfde92c9..1894c95d 100644
--- a/PVE/QemuServer/Virtiofs.pm
+++ b/PVE/QemuServer/Virtiofs.pm
@@ -57,6 +57,13 @@ my $virtiofs_fmt = {
        default => 0,
        optional => 1,
     },
+    'thread-pool-size' => {
+       type => 'integer',
+       description => "Controls the maximum number of worker threads used by 
virtiofsd to handle"
+           ." requests. A value of '0' disables the thread pool.",
+       default => 0,
+       optional => 1,
+    },
 };
 PVE::JSONSchema::register_format('pve-qm-virtiofs', $virtiofs_fmt);
 
@@ -172,6 +179,8 @@ sub start_virtiofsd {
            my $cmd = [$virtiofsd_bin, "--fd=$fd", "--shared-dir=$path"];
            push @$cmd, '--xattr' if $virtiofs->{'expose-xattr'};
            push @$cmd, '--posix-acl' if $virtiofs->{'expose-acl'};
+           push @$cmd, '--thread-pool-size='.$virtiofs->{'thread-pool-size'}
+               if $virtiofs->{'thread-pool-size'};
            push @$cmd, '--announce-submounts';
            push @$cmd, '--allow-direct-io' if $virtiofs->{'direct-io'};
            push @$cmd, '--cache='.$virtiofs->{cache} if $virtiofs->{cache};
-- 
2.39.5



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