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Re: [PATCH v8 9/9] tools/xenstored: use xenmanage_poll_changed_domain()
- To: Juergen Gross <jgross@xxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jason Andryuk <jason.andryuk@xxxxxxx>
- Date: Wed, 12 Mar 2025 13:45:28 -0400
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- Cc: Julien Grall <julien@xxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>
- Delivery-date: Wed, 12 Mar 2025 17:46:01 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 2025-02-04 06:34, Juergen Gross wrote:
Instead of checking each known domain after having received a
VIRQ_DOM_EXC event, use the new xenmanage_poll_changed_domain()
function for directly getting the domid of a domain having changed
its state.
A test doing "xl shutdown" of 1000 guests has shown to reduce the
consumed cpu time of xenstored by 6% with this change applied.
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Jason Andryuk <jason.andryuk@xxxxxxx>
I see at least some dom_invalid uses goes away, so maybe don't bother
changing it.
Regards,
Jason
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