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Bug 1563284 - Remove use of hdparm for IO tests - misleading results
Summary: Remove use of hdparm for IO tests - misleading results
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Satellite
Classification: Red Hat
Component: Satellite Maintain
Version: Unspecified
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: Unspecified
Assignee: Kavita
QA Contact: Nikhil Kathole
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-04-03 14:17 UTC by Mike McCune
Modified: 2023-09-15 00:07 UTC (History)
7 users (show)

Fixed In Version: foreman_maintain-0.2.4
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-03-05 18:07:05 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Foreman Issue Tracker 23755 0 Normal Closed Remove use of hdparm for IO tests - misleading results 2020-03-31 13:40:22 UTC
Red Hat Bugzilla 1622616 0 medium CLOSED Inconsistency over fio utility benchmarking 2024-03-25 15:07:16 UTC

Internal Links: 1622616

Description Mike McCune 2018-04-03 14:17:22 UTC 
Now that we are shipping fio, we should remove the use of hdparm in foreman-maintain's IO benchmark tests as it can often lead to high value tests that are often way lower when a proper test with fio is run.

EG, we have seen situations where hdparm indicates speeds of 400-500MB/sec but fio shows in the ~10MB/sec range in Satellites that were performing poorly.
Comment 2 Kavita 2018-05-31 08:31:11 UTC 
Created redmine issue http://projects.theforeman.org/issues/23755 from this bug
Comment 3 Satellite Program 2018-06-07 14:00:43 UTC 
Moving this bug to POST for triage into Satellite 6 since the upstream issue http://projects.theforeman.org/issues/23755 has been resolved.
Comment 5 Nikhil Kathole 2018-08-05 15:15:32 UTC 
VERIFIED

Version tested:
# rpm -qa | grep maintain
rubygem-foreman_maintain-0.2.6-1.el7sat.noarch


Only fio package is installed by foreman-maintain. 

# foreman-maintain upgrade check --target-version 6.4.z
Running preparation steps required to run the next scenarios
================================================================================
Procedures::Packages::Install: 

==================================================================================================================================================
 Package       Arch             Version              Repository                                                                              Size
==================================================================================================================================================
Installing:
 fio           x86_64           3.1-2.el7            Sat6-CI_Satellite_Maintenance_Next_Composes_Satellite_Maintenance_Next_RHEL7           451 k

Transaction Summary
==================================================================================================================================================
Install  1 Package

Total download size: 451 k
Installed size: 1.7 M
Is this ok [y/d/N]:
Comment 7 Kavita 2019-02-18 13:38:15 UTC 
@Mike,

After removal of hdparm, there are many cases opened by customers as disk speed check is failing.
BZ link - https://bugzilla.redhat.com/show_bug.cgi?id=1641784
There is difference between results by hdparm and by fio as you mentioned and BZ-1641784 description also shows the same.

Any pointers for us to debug further and fix the issue?

We thought to check disk-speed more than ones by some interval and by taking average but it might not work as there might be huge difference in results from two runs.
For satellite 6.3 & 6.4 version, mentioned expected speed is a range 60 - 80 Megabytes per second in the documentation. 
Do we need to modify threshold (currently its 60 as per documentation) against which foreman-maintain compares system's disk-speed?
Comment 8 Mike McCune 2020-03-05 18:07:05 UTC 
we long stopped using hdparm and have other bugs open around our current fio benchmarking to track related issues.
Comment 9 Red Hat Bugzilla 2023-09-15 00:07:19 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 500 days
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