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qapi: Craft the dirty-limit capability comment
Signed-off-by: Hyman Huang(黄勇) <yong.huang@smartx.com> Message-ID: <169073570563.19893.2928364761104733482-2@git.sr.ht> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
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# are present. 'return-path' capability must be enabled to use
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# are present. 'return-path' capability must be enabled to use
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# it. (since 8.1)
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# it. (since 8.1)
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#
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#
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# @dirty-limit: If enabled, migration will use the dirty-limit
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# @dirty-limit: If enabled, migration will throttle vCPUs as needed to
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# algorithim to throttle down guest instead of auto-converge
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# keep their dirty page rate within @vcpu-dirty-limit. This can
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# algorithim. Throttle algorithim only works when vCPU's dirtyrate
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# improve responsiveness of large guests during live migration,
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# greater than 'vcpu-dirty-limit', read processes in guest os
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# and can result in more stable read performance. Requires KVM
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# aren't penalized any more, so this algorithim can improve
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# with accelerator property "dirty-ring-size" set. (Since 8.1)
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# performance of vCPU during live migration. This is an optional
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# performance feature and should not affect the correctness of the
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# existing auto-converge algorithim. (Since 8.1)
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#
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#
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# Features:
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# Features:
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#
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#
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