From: Fiona Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH v2 guest-common] vzdump: config: improve description of ionice setting
Date: Wed, 7 Jun 2023 16:54:50 +0200 [thread overview]
Message-ID: <20230607145450.84160-4-f.ebner@proxmox.com> (raw)
In-Reply-To: <20230607145450.84160-1-f.ebner@proxmox.com>
The CFQ scheduler was removed with Linux 5.0 and ionice is now used
by the newer BFQ scheduler. Mention what the special value 8 does.
Also mention that for snapshot and suspend mode backups of VMs, the
setting only affects the compressor, because the kvm process is not a
child process of vzdump then and does not inherit the ionice priority.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
No changes in v2.
src/PVE/VZDump/Common.pm | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/PVE/VZDump/Common.pm b/src/PVE/VZDump/Common.pm
index 64c4e4e..a6fe483 100644
--- a/src/PVE/VZDump/Common.pm
+++ b/src/PVE/VZDump/Common.pm
@@ -212,7 +212,10 @@ my $confdesc = {
},
ionice => {
type => 'integer',
- description => "Set CFQ ionice priority.",
+ description => "Set IO priority when using the BFQ scheduler. For snapshot and suspend "
+ ."mode backups of VMs, this only affects the compressor. A value of 8 means the idle "
+ ."priority is used, otherwise the best-effort priority is used with the specified "
+ ."value.",
optional => 1,
minimum => 0,
maximum => 8,
--
2.39.2
next prev parent reply other threads:[~2023-06-07 14:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-07 14:54 [pve-devel] [PATCH v2 manager 1/2] close #4513: ui: backup job: add performance tab Fiona Ebner
2023-06-07 14:54 ` [pve-devel] [PATCH v2 manager 2/2] ui: backup job: disable zstd thread count field when zstd isn't used Fiona Ebner
2023-06-07 14:54 ` [pve-devel] [PATCH v2 docs] backup: update information about performance settings Fiona Ebner
2023-06-07 14:54 ` Fiona Ebner [this message]
2023-06-07 17:18 ` [pve-devel] applied: [PATCH v2 guest-common] vzdump: config: improve description of ionice setting Thomas Lamprecht
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230607145450.84160-4-f.ebner@proxmox.com \
--to=f.ebner@proxmox.com \
--cc=pve-devel@lists.proxmox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox