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schema: Add new domain elements to support multiple throttle groups
Introduce schema for defining '<throttlegroups>' element which configures throttling groups which can be configured for multiple disks. * Refactor "diskIoTune" to extract common schema "iotune" * Add new elements '<throttlegroups>' * <ThrottleGroups> contains <ThrottleGroup> defintion, which references "iotune" Signed-off-by: Chun Feng Wu <danielwuwy@163.com> Signed-off-by: Harikumar Rajkumar <harirajkumar230@gmail.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com> Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Chun Feng Wu
Peter Krempa
parent
65eeaf12d0
commit
2463533aad
@ -2000,6 +2000,32 @@ advertisements to the guest OS. (NB: Only qemu driver support)
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the guest OS itself can choose to circumvent the unavailability of the sleep
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states (e.g. S4 by turning off completely).
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Disk Throttle Group Management
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------------------------------
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:since:`Since 11.2.0` it is possible to create multiple named throttle groups
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and then reference them within ``throttlefilters``(sub-element of ``disk`` element)
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to form filter chain in QEMU for specific disk. The limits(throttlegroups) are
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shared within domain, hence the same group can be referenced by different filters.
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::
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<domain>
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...
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<throttlegroups>
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<throttlegroup>
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<group_name>limit0</group_name>
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<total_bytes_sec>10000000</total_bytes_sec>
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<read_iops_sec>400000</read_iops_sec>
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<write_iops_sec>100000</write_iops_sec>
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</throttlegroup>
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</throttlegroups>
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...
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</domain>
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``throttlegroup``
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It has the same sub-elements as ``iotune`` (See `Hard drives, floppy disks, CDROMs`_),
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The difference is that <group_name> is required.
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Hypervisor features
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-------------------
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@ -71,6 +71,7 @@
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</zeroOrMore>
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<ref name="os"/>
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<ref name="clock"/>
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<ref name="throttlegroups"/>
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<ref name="resources"/>
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<ref name="features"/>
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<ref name="events"/>
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@ -6870,6 +6871,23 @@
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</interleave>
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</element>
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</define>
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<define name="throttlegroup">
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<element name="throttlegroup">
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<ref name="iotune"/>
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</element>
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</define>
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<!--
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A set of optional throttlegroups
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-->
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<define name="throttlegroups">
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<optional>
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<element name="throttlegroups">
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<zeroOrMore>
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<ref name="throttlegroup"/>
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</zeroOrMore>
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</element>
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</optional>
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</define>
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<!--
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A set of optional features: PAE, APIC, ACPI, GIC, TCG,
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HyperV Enlightenment, KVM features, paravirtual spinlocks and HAP support
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@ -7857,134 +7875,138 @@
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</element>
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</define>
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<define name="iotune">
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<interleave>
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<choice>
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<element name="total_bytes_sec">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_bytes_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_bytes_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<choice>
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<element name="total_iops_sec">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_iops_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_iops_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<choice>
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<element name="total_bytes_sec_max">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_bytes_sec_max">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_bytes_sec_max">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<choice>
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<element name="total_iops_sec_max">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_iops_sec_max">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_iops_sec_max">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<optional>
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<element name="size_iops_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="group_name">
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<text/>
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</element>
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</optional>
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<choice>
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<element name="total_bytes_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_bytes_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_bytes_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<choice>
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<element name="total_iops_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_iops_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_iops_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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</interleave>
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</define>
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<define name="diskIoTune">
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<element name="iotune">
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<interleave>
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<choice>
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<element name="total_bytes_sec">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_bytes_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_bytes_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<choice>
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<element name="total_iops_sec">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_iops_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_iops_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<choice>
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<element name="total_bytes_sec_max">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_bytes_sec_max">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_bytes_sec_max">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<choice>
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<element name="total_iops_sec_max">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_iops_sec_max">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_iops_sec_max">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<optional>
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<element name="size_iops_sec">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="group_name">
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<text/>
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</element>
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</optional>
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<choice>
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<element name="total_bytes_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_bytes_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_bytes_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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<choice>
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<element name="total_iops_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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<group>
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<interleave>
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<optional>
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<element name="read_iops_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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</optional>
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<optional>
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<element name="write_iops_sec_max_length">
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<data type="unsignedLong"/>
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</element>
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</optional>
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</interleave>
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</group>
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</choice>
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</interleave>
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<ref name="iotune"/>
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</element>
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</define>
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