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+storage controller, rather than handling all I/O in the main event loop or vCPU
+threads. This can increase performance, because of improved work distribution.
not only that, it evidently avoids vm locking / cpu stuck/freeze
conditions and vm timing hiccups
see https://bu
Reported in the community forum[0].
The setting can already help with a single disk. Without the option,
there is not one IO thread as the old wording suggested, but IO is
handled in the main event loop or vCPU threads (see the kvm man page).
[0]: https://forum.proxmox.com/threads/118390/post-518
