Bug 1270442
Summary: | the behaviour of virsh command "blkdeviotune" has obscure logics but not mentioned in manual or libvirt.org doc. | ||
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Product: | Red Hat Enterprise Linux 7 | Reporter: | yisun |
Component: | doc-Virtualization_Deployment_and_Administration_Guide | Assignee: | Jiri Herrmann <jherrman> |
Status: | CLOSED WONTFIX | QA Contact: | |
Severity: | low | Docs Contact: | |
Priority: | medium | ||
Version: | 7.2 | CC: | dyuan, jsuchane, mzhan, rbalakri, rhel-docs, xuzhang, yafu |
Target Milestone: | rc | Keywords: | Documentation |
Target Release: | --- | ||
Hardware: | x86_64 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2016-06-03 18:21:07 UTC | Type: | Bug |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
yisun
2015-10-10 07:01:41 UTC
Laura, can you please help us with this one? Thanks. Jiri, this basically relies on your decision. If you think that the disk I/O throttling section should include more precise description then I think comment 0 includes all necessary information. From my POV the details are not necessary. For your information, manual page contains this info: If no limit is specified, it will query current I/O limits setting. Otherwise, alter the limits with these flags: --total-bytes-sec specifies total throughput limit in bytes per second. --read-bytes-sec specifies read throughput limit in bytes per second. --write-bytes-sec specifies write throughput limit in bytes per second. --total-iops-sec specifies total I/O operations limit per second. --read-iops-sec specifies read I/O operations limit per second. --write-iops-sec specifies write I/O operations limit per second. --total-bytes-sec-max specifies maximum total throughput limit in bytes per second. --read-bytes-sec-max specifies maximum read throughput limit in bytes per second. --write-bytes-sec-max specifies maximum write throughput limit in bytes per second. --total-iops-sec-max specifies maximum total I/O operations limit per second. --read-iops-sec-max specifies maximum read I/O operations limit per second. --write-iops-sec-max specifies maximum write I/O operations limit per second. --size-iops-sec specifies size I/O operations limit per second. Thank you for the intel everyone! Nevertheless, I'd like to prevent more bloat to the documentation, and from Michal's response in comment 0, this information does not seem to help the users achieve anything specific, but would rather just add duplicated reference material. Also, as mentioned by Jarda in comment 4, there is additional information on the man page, to which the guide does refer: http://jenkinscat.gsslab.pnq.redhat.com:8080/job/doc-Red_Hat_Enterprise_Linux-7-Virtualization_Deployment_and_Administration_Guide%20%28html-single%29/lastStableBuild/artifact/tmp/en-US/html-single/index.html#sect-Managing_guest_virtual_machines_with_virsh-Disk_IO_throttling Therefore, I'll be closing this BZ. Yi, if you feel like the blkdeviotune behaviours you discussed should be documented nonetheless, feel free to reopen this and let me know. |