Bug 1366083

Summary: Ceph Cluster Performance Reported Numbers Questionnable
Product: [Red Hat Storage] Red Hat Storage Console Reporter: Jean-Charles Lopez <jelopez>
Component: UIAssignee: sankarshan <sankarshan>
Status: CLOSED DUPLICATE QA Contact: sds-qe-bugs
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Version: 2CC: nthomas, sankarshan
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Target Release: 2   
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Last Closed: 2016-08-11 06:20:29 UTC Type: Bug
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Description Jean-Charles Lopez 2016-08-11 01:20:44 UTC
Description of problem: Running multiple DD test against RBD images in my test environment. 3 VMs with 1 core each, 2GB RAM each, 2 OSDs each. The DD shows me between 200 and 300 ops per second and around 300KB/s each against 5 RBD images. All the test environment runs on an Apple i7 Macbook Pro with 16GB RAM.


Version-Release number of selected component (if applicable): 2.0 (0.0.39)


How reproducible:
100%

Steps to Reproduce:
1. Create multiple RBD images of 128MB
2. Map each RBD image on a node
3. On each node run a dd if=/dev/zero of=/dev/rbdx bs=1 count=131072000 &

Actual results:
Although the value of ops per second may be accurate, the bandwidth is probably showing the correct number but with the wrong unit. 1,358,280.2 KB/s hence 1.3 GB/s

Expected results:
Probably 1,358,280 B/s

Additional info:

Comment 4 Nishanth Thomas 2016-08-11 02:22:50 UTC
Yes this is an issue, which is fixed in the latest build - rhscon-ui-0.0.53-1.el7scon.noarch.rpm

There was already bz to report this issue - 1364461

Comment 5 Nishanth Thomas 2016-08-11 06:20:29 UTC

*** This bug has been marked as a duplicate of bug 1364461 ***