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Specifically,\nthey enable the configuration of burst lengths for read, write, and\noverall IOPS and bandwidth. This blueprint proposes to incorporate these\nparameters into Cinder QoS specifications for connected volumes.\n\nChange-Id: Id7e3c0a8bc6509edc94d2e58be4611e5c6a416c2\nSigned-off-by: Mengyang Zhang \u003cmzhang741@bloomberg.net\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/a76dbb46085ac730e4e47d5029666badaa336e44"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/a76dbb46085ac730e4e47d5029666badaa336e44"}]},"branch":"refs/heads/master"},"9bd381746503403eed08021df8f26f2c1eaebaf2":{"kind":"REWORK","_number":2,"created":"2024-10-17 20:25:28.000000000","uploader":{"_account_id":37356,"name":"Mengyang Zhang","display_name":"Mengyang","email":"mzhang741@bloomberg.net","username":"mzhang741"},"ref":"refs/changes/53/932653/2","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova-specs","ref":"refs/changes/53/932653/2","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/2 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/2 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/2 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/2"}}},"commit":{"parents":[{"commit":"0cb32c15886f2beb61ed68e01b26b4deea7de4b7","subject":"Fix typos in release name","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/0cb32c15886f2beb61ed68e01b26b4deea7de4b7"}]}],"author":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-17 18:53:51.000000000","tz":-240},"committer":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-17 20:25:04.000000000","tz":-240},"subject":"Add Burst Length Support to Cinder QoS","message":"Add Burst Length Support to Cinder QoS\n\nQEMU 2.6 and Libvirt 2.4.0 introduce new iotune parameters that enhance\nthe flexibility of block storage quality of service (QoS). Specifically,\nthey enable the configuration of burst lengths for read, write, and\noverall IOPS and bandwidth. This blueprint proposes to incorporate these\nparameters into Cinder QoS specifications for connected volumes.\n\nChange-Id: Id7e3c0a8bc6509edc94d2e58be4611e5c6a416c2\nSigned-off-by: Mengyang Zhang \u003cmzhang741@bloomberg.net\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/9bd381746503403eed08021df8f26f2c1eaebaf2"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/9bd381746503403eed08021df8f26f2c1eaebaf2"}]},"branch":"refs/heads/master"},"bf0ec0bc0487393519ca3eda00c4fb8bd7096045":{"kind":"NO_CODE_CHANGE","_number":3,"created":"2024-10-23 15:16:29.000000000","uploader":{"_account_id":37356,"name":"Mengyang Zhang","display_name":"Mengyang","email":"mzhang741@bloomberg.net","username":"mzhang741"},"ref":"refs/changes/53/932653/3","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova-specs","ref":"refs/changes/53/932653/3","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/3 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/3 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/3 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/3"}}},"commit":{"parents":[{"commit":"0cb32c15886f2beb61ed68e01b26b4deea7de4b7","subject":"Fix typos in release name","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/0cb32c15886f2beb61ed68e01b26b4deea7de4b7"}]}],"author":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-17 18:53:51.000000000","tz":-240},"committer":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-23 15:15:11.000000000","tz":-240},"subject":"Add Burst Length Support to Cinder QoS","message":"Add Burst Length Support to Cinder QoS\n\nblueprint: add-burst-length-support\n\nQEMU 2.6 and Libvirt 2.4.0 introduce new iotune parameters that enhance\nthe flexibility of block storage quality of service (QoS). Specifically,\nthey enable the configuration of burst lengths for read, write, and\noverall IOPS and bandwidth. This blueprint proposes to incorporate these\nparameters into Cinder QoS specifications for connected volumes.\n\nChange-Id: Id7e3c0a8bc6509edc94d2e58be4611e5c6a416c2\nSigned-off-by: Mengyang Zhang \u003cmzhang741@bloomberg.net\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/bf0ec0bc0487393519ca3eda00c4fb8bd7096045"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/bf0ec0bc0487393519ca3eda00c4fb8bd7096045"}]},"branch":"refs/heads/master"},"e5b0d172b89e8218148ac31a3a4122bc2a4cc9ea":{"kind":"REWORK","_number":4,"created":"2024-10-24 17:45:22.000000000","uploader":{"_account_id":37356,"name":"Mengyang Zhang","display_name":"Mengyang","email":"mzhang741@bloomberg.net","username":"mzhang741"},"ref":"refs/changes/53/932653/4","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova-specs","ref":"refs/changes/53/932653/4","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/4 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/4 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/4 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/4"}}},"commit":{"parents":[{"commit":"0cb32c15886f2beb61ed68e01b26b4deea7de4b7","subject":"Fix typos in release name","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/0cb32c15886f2beb61ed68e01b26b4deea7de4b7"}]}],"author":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-17 18:53:51.000000000","tz":-240},"committer":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-24 17:45:09.000000000","tz":-240},"subject":"Add Burst Length Support to Cinder QoS","message":"Add Burst Length Support to Cinder QoS\n\nblueprint: add-burst-length-support\n\nQEMU 2.6 and Libvirt 2.4.0 introduce new iotune parameters that enhance\nthe flexibility of block storage quality of service (QoS). Specifically,\nthey enable the configuration of burst lengths for read, write, and\noverall IOPS and bandwidth. This blueprint proposes to incorporate these\nparameters into Cinder QoS specifications for connected volumes.\n\nChange-Id: Id7e3c0a8bc6509edc94d2e58be4611e5c6a416c2\nSigned-off-by: Mengyang Zhang \u003cmzhang741@bloomberg.net\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/e5b0d172b89e8218148ac31a3a4122bc2a4cc9ea"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/e5b0d172b89e8218148ac31a3a4122bc2a4cc9ea"}]},"branch":"refs/heads/master"},"ccdfd0d388a6ca80f299b7f58d2b445aedfb8ae7":{"kind":"NO_CODE_CHANGE","_number":5,"created":"2025-01-15 14:47:16.000000000","uploader":{"_account_id":37356,"name":"Mengyang Zhang","display_name":"Mengyang","email":"mzhang741@bloomberg.net","username":"mzhang741"},"ref":"refs/changes/53/932653/5","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova-specs","ref":"refs/changes/53/932653/5","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/5 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/5 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/5 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/5"}}},"commit":{"parents":[{"commit":"0cb32c15886f2beb61ed68e01b26b4deea7de4b7","subject":"Fix typos in release name","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/0cb32c15886f2beb61ed68e01b26b4deea7de4b7"}]}],"author":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-17 18:53:51.000000000","tz":-240},"committer":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2025-01-15 14:47:16.000000000","tz":0},"subject":"Add Burst Length Support to Cinder QoS","message":"Add Burst Length Support to Cinder QoS\n\nblueprint: add-burst-length-support\n\nQEMU 2.6 and Libvirt 2.4.0 introduce new iotune parameters that enhance the flexibility of block storage quality of service (QoS). Specifically, they enable the configuration of burst lengths for read, write, and overall IOPS and bandwidth.\n\nCurrently, the Nova libvirt driver supports setting burst limits but does not provide the option to configure burst length. As a result, burst limits can only be applied for one second as QEMU defaults the burst length to this duration, reducing their effectiveness. This blueprint aims to incorporate burst length parameters into the existing QoS settings to allow for more flexible resource management.\n\nChange-Id: Id7e3c0a8bc6509edc94d2e58be4611e5c6a416c2\nSigned-off-by: Mengyang Zhang \u003cmzhang741@bloomberg.net\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/ccdfd0d388a6ca80f299b7f58d2b445aedfb8ae7"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/ccdfd0d388a6ca80f299b7f58d2b445aedfb8ae7"}]},"branch":"refs/heads/master","description":"Edit commit message"},"fc9da9eb07f089be6071a94f43b0efb515c141b0":{"kind":"NO_CODE_CHANGE","_number":6,"created":"2025-01-16 20:26:30.000000000","uploader":{"_account_id":37356,"name":"Mengyang Zhang","display_name":"Mengyang","email":"mzhang741@bloomberg.net","username":"mzhang741"},"ref":"refs/changes/53/932653/6","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova-specs","ref":"refs/changes/53/932653/6","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/6 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/6 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/6 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/6"}}},"commit":{"parents":[{"commit":"0cb32c15886f2beb61ed68e01b26b4deea7de4b7","subject":"Fix typos in release name","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/0cb32c15886f2beb61ed68e01b26b4deea7de4b7"}]}],"author":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-17 18:53:51.000000000","tz":-240},"committer":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2025-01-16 20:26:30.000000000","tz":0},"subject":"Add Burst Length Support to Cinder QoS","message":"Add Burst Length Support to Cinder QoS\n\nblueprint: add-burst-length-support\n\nQEMU 2.6 and Libvirt 2.4.0 introduce new iotune parameters that enhance the flexibility of block storage quality of service (QoS). Specifically, they enable the configuration of burst lengths for read, write, and overall IOPS and bandwidth.\n\nCurrently, the Nova libvirt driver supports setting burst limits but does not provide the option to configure burst length. As a result, burst limits can only be applied for one second as QEMU defaults the burst length to this duration, reducing their effectiveness.\n\nThis blueprint aims to incorporate burst length parameters into the existing QoS settings to allow for more flexible resource management.\n\nWith the changes, an admin can set front-end QoS specifications with burst limits and lengths for a specific volume type via the following openstack command:\n\n  openstack volume qos create \\\n    --consumer \"front-end\" \\\n    --property \"read_bytes_sec_max\u003d100000000\" \\\n    --property \"read_bytes_sec_max_length\u003d60\" \\\n    \u003cqos_name\u003e\n  openstack volume qos associate \u003cqos_name\u003e --volume-type \u003cvolume_type\u003e\n\nWhen a volume of this type attached to a VM, these values would be populated into the libvirt xml file under the iotune session.\n\n  \u003ciotune\u003e\n     \u003cread_bytes_sec\u003e1024000\u003c/read_bytes_sec\u003e\n     \u003cread_bytes_sec_max_length\u003e60\u003c/read_bytes_sec_max_length\u003e\n  \u003c/iotune\u003e\n\nThe complete list of supported burst length parameters is as follow.\nAvailable Additional QoS Specs:\n\nEach specification will add an extra line to the libvirt XML definition,\nspecifically within the \u003ciotune\u003e section for each device:\n\n* **read_bytes_sec_max_length**:\n\n  Maximum duration in seconds for the read_bytes_sec_max burst period (valid\n  only if read_bytes_sec_max is set).\n\n  ``\u003cread_bytes_sec_max_length\u003evalue\u003c/read_bytes_sec_max_length\u003e``\n\n\n* **write_bytes_sec_max_length**:\n\n  Maximum duration in seconds for the write_bytes_sec_max burst period (valid\n  only if write_bytes_sec_max is set).\n\n  ``\u003cwrite_bytes_sec_max_length\u003evalue\u003c/write_bytes_sec_max_length\u003e``\n\n\n* **total_bytes_sec_max_length**:\n\n  Maximum duration in seconds for the total_bytes_sec_max burst period (valid\n  only if total_bytes_sec_max is set).\n\n  ``\u003ctotal_bytes_sec_max_length\u003evalue\u003c/total_bytes_sec_max_length\u003e``\n\n* **read_iops_sec_max_length**:\n\n  Maximum duration in seconds for the read_iops_sec_max burst period (valid\n  only if read_iops_sec_max is set).\n\n  ``\u003cread_iops_sec_max_length\u003evalue\u003c/read_iops_sec_max_length\u003e``\n\n\n* **write_iops_sec_max_length**:\n\n  Maximum duration in seconds for the write_iops_sec_max burst period (valid\n  only if write_iops_sec_max is set).\n\n  ``\u003cwrite_iops_sec_max_length\u003evalue\u003c/write_iops_sec_max_length\u003e``\n\n\n* **total_iops_sec_max_length**:\n\n  Maximum duration in seconds for the total_iops_sec_max burst period (valid\n  only if total_iops_sec_max is set).\n\n  ``\u003ctotal_iops_sec_max_length\u003evalue\u003c/total_iops_sec_max_length\u003e``\n\nChange-Id: Id7e3c0a8bc6509edc94d2e58be4611e5c6a416c2\nSigned-off-by: Mengyang Zhang \u003cmzhang741@bloomberg.net\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/fc9da9eb07f089be6071a94f43b0efb515c141b0"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/fc9da9eb07f089be6071a94f43b0efb515c141b0"}]},"branch":"refs/heads/master","description":"Edit commit message"},"a5adc75200fe2c57b77197ab50239cdd0e98dff5":{"kind":"NO_CODE_CHANGE","_number":7,"created":"2025-01-16 20:43:18.000000000","uploader":{"_account_id":37356,"name":"Mengyang Zhang","display_name":"Mengyang","email":"mzhang741@bloomberg.net","username":"mzhang741"},"ref":"refs/changes/53/932653/7","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova-specs","ref":"refs/changes/53/932653/7","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/7 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/7 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/7 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/7"}}},"commit":{"parents":[{"commit":"0cb32c15886f2beb61ed68e01b26b4deea7de4b7","subject":"Fix typos in release name","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/0cb32c15886f2beb61ed68e01b26b4deea7de4b7"}]}],"author":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-17 18:53:51.000000000","tz":-240},"committer":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2025-01-16 20:43:18.000000000","tz":0},"subject":"Add Burst Length Support to Cinder QoS","message":"Add Burst Length Support to Cinder QoS\n\nblueprint: add-burst-length-support\n\nQEMU 2.6 and Libvirt 2.4.0 introduce new iotune parameters that enhance the flexibility of block storage quality of service (QoS). Specifically, they enable the configuration of burst lengths for read, write, and overall IOPS and bandwidth.\n\nCurrently, the Nova libvirt driver supports setting burst limits but does not provide the option to configure burst length. As a result, burst limits can only be applied for one second as QEMU defaults the burst length to this duration, reducing their effectiveness.\n\nThis blueprint aims to incorporate burst length parameters into the existing QoS settings to allow for more flexible resource management.\n\nWith these changes, users can set front-end QoS specifications with burst limits and lengths for a specific volume type using the following openstack commands:\n\n  openstack volume qos create \\\n    --consumer \"front-end\" \\\n    --property \"read_bytes_sec_max\u003d100000000\" \\\n    --property \"read_bytes_sec_max_length\u003d60\" \\\n    \u003cqos_name\u003e\n\n  openstack volume qos associate \u003cqos_name\u003e --volume-type \\\n    \u003cvolume_type\u003e\n\nWhen a volume of this type is attached to a VM, these values will be populated into the libvirt XML file under the iotune session:\n\n  \u003ciotune\u003e\n     \u003cread_bytes_sec\u003e1024000\u003c/read_bytes_sec\u003e\n     \u003cread_bytes_sec_max_length\u003e60\u003c/read_bytes_sec_max_length\u003e\n  \u003c/iotune\u003e\n\nThe complete list of supported burst length specifications is as follow. Each specification will add an extra line to the libvirt XML definition,\nspecifically within the \u003ciotune\u003e section for each device:\n\n- read_bytes_sec_max_length:\n  Maximum duration in seconds for the read_bytes_sec_max burst period\n  (valid only if read_bytes_sec_max is set).\n\n  \u003cread_bytes_sec_max_length\u003evalue\u003c/read_bytes_sec_max_length\u003e\n\n- write_bytes_sec_max_length:\n  Maximum duration in seconds for the write_bytes_sec_max burst period\n  (valid only if write_bytes_sec_max is set).\n\n  \u003cwrite_bytes_sec_max_length\u003evalue\u003c/write_bytes_sec_max_length\u003e\n\n- total_bytes_sec_max_length:\n  Maximum duration in seconds for the total_bytes_sec_max burst period\n  (valid only if total_bytes_sec_max is set).\n\n  \u003ctotal_bytes_sec_max_length\u003evalue\u003c/total_bytes_sec_max_length\u003e\n\n- read_iops_sec_max_length:\n  Maximum duration in seconds for the read_iops_sec_max burst period\n  (valid only if read_iops_sec_max is set).\n\n  \u003cread_iops_sec_max_length\u003evalue\u003c/read_iops_sec_max_length\u003e\n\n\n- write_iops_sec_max_length:\n  Maximum duration in seconds for the write_iops_sec_max burst period\n  (valid only if write_iops_sec_max is set).\n\n  \u003cwrite_iops_sec_max_length\u003evalue\u003c/write_iops_sec_max_length\u003e\n\n\n- total_iops_sec_max_length:\n  Maximum duration in seconds for the total_iops_sec_max burst period\n  (valid only if total_iops_sec_max is set).\n\n  \u003ctotal_iops_sec_max_length\u003evalue\u003c/total_iops_sec_max_length\u003e\n\nChange-Id: Id7e3c0a8bc6509edc94d2e58be4611e5c6a416c2\nSigned-off-by: Mengyang Zhang \u003cmzhang741@bloomberg.net\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/a5adc75200fe2c57b77197ab50239cdd0e98dff5"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/a5adc75200fe2c57b77197ab50239cdd0e98dff5"}]},"branch":"refs/heads/master","description":"Edit commit message"},"64e09e04f3a0ffd3b6df558fc8f106cc151516c4":{"kind":"REWORK","_number":8,"created":"2025-02-19 19:30:02.000000000","uploader":{"_account_id":37356,"name":"Mengyang Zhang","display_name":"Mengyang","email":"mzhang741@bloomberg.net","username":"mzhang741"},"ref":"refs/changes/53/932653/8","fetch":{"anonymous http":{"url":"https://review.opendev.org/openstack/nova-specs","ref":"refs/changes/53/932653/8","commands":{"Checkout":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/8 \u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/8 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/8 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/nova-specs refs/changes/53/932653/8"}}},"commit":{"parents":[{"commit":"ee3b8dd2b1509dece7351488398dff879495403e","subject":"Fix a line that was not removed before merging the specification","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/ee3b8dd2b1509dece7351488398dff879495403e"}]}],"author":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2024-10-17 18:53:51.000000000","tz":-240},"committer":{"name":"Mengyang Zhang","email":"mzhang741@bloomberg.net","date":"2025-02-19 19:28:22.000000000","tz":-300},"subject":"Add Burst Length Support to Cinder QoS","message":"Add Burst Length Support to Cinder QoS\n\nblueprint: add-burst-length-support\n\nQEMU 2.6 and Libvirt 2.4.0 introduce new iotune parameters that enhance\nthe flexibility of block storage quality of service (QoS). Specifically,\nthey enable the configuration of burst lengths for read, write, and\noverall IOPS and bandwidth. This blueprint proposes to incorporate these\nparameters into Cinder QoS specifications for connected volumes.\n\nChange-Id: Id7e3c0a8bc6509edc94d2e58be4611e5c6a416c2\nSigned-off-by: Mengyang Zhang \u003cmzhang741@bloomberg.net\u003e\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/64e09e04f3a0ffd3b6df558fc8f106cc151516c4"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/nova-specs/commit/64e09e04f3a0ffd3b6df558fc8f106cc151516c4"}]},"branch":"refs/heads/master"}},"requirements":[],"submit_records":[{"rule_name":"gerrit~DefaultSubmitRule","status":"OK","labels":[{"label":"Verified","status":"MAY","applied_by":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}},{"label":"Code-Review","status":"MAY","applied_by":{"_account_id":11604,"name":"sean mooney","email":"smooney@redhat.com","username":"sean-k-mooney"}},{"label":"Workflow","status":"MAY"},{"label":"Review-Priority","status":"MAY"}]}],"submit_requirements":[{"name":"Verified","description":"Verified in gate by CI","status":"UNSATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Verified\u003dMAX AND -label:Verified\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Verified\u003dMAX","label:Verified\u003dMIN"],"atom_explanations":{"label:Verified\u003dMAX":"","label:Verified\u003dMIN":""}}},{"name":"Code-Review","description":"Code reviewed by core reviewer","status":"UNSATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Code-Review\u003dMAX AND -label:Code-Review\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Code-Review\u003dMAX","label:Code-Review\u003dMIN"],"atom_explanations":{"label:Code-Review\u003dMAX":"","label:Code-Review\u003dMIN":""}}},{"name":"Review-Priority","description":"Review Priority","status":"NOT_APPLICABLE","is_legacy":false,"applicability_expression_result":{"fulfilled":false,"status":"FAIL"},"submittability_expression_result":{"expression":"is:true","fulfilled":true,"status":"NOT_EVALUATED","passing_atoms":[],"failing_atoms":[],"atom_explanations":{}}},{"name":"Workflow","description":"Approved for gate by core reviewer","status":"UNSATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Workflow\u003dMAX AND -label:Workflow\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Workflow\u003dMAX","label:Workflow\u003dMIN"],"atom_explanations":{"label:Workflow\u003dMAX":"","label:Workflow\u003dMIN":""}}}]}