[LU-9140] sanityn test_77j test_77k: The read / write rate exceeds x% of preset rate

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.11.0, Lustre 2.10.2
• Affects Version/s: Lustre 2.10.0, Lustre 2.11.0
• Environment: trevis-38vm3 thru 6, Full Group test, ; RHEL7.3/ldiskfs, branch master, v2.9.53.19.gdad9ce4, b3534, ; SLES 12.2 client
• Severity: 3
• Assignee: Qian Yingjin (Inactive)
• Reporter: James Casper (Inactive)

Description

https://testing.hpdd.intel.com/test_sets/16f600cc-f85e-11e6-b8e5-5254006e85c2

From test_log:

Limited write rate: 20, read rate: 5
Verify the write rate is under TBF control
Write speed is 4.91903
Verify the read rate is under TBF control
Read speed is 19.5095
 sanityn test_77j: @@@@@@ FAIL: The read rate (19.5095) exceeds 110% of preset rate (5) 

Info required for matching: sanityn 77j
Info required for matching: sanityn 77k

Issue Links

• is duplicated by: LU-9308 sanityn test_77j: write rate exceeds 110% of preset rate
• is related to: LU-9227 Changing rate of a TBF rule loses control in some testcases