** Tags added: cscc
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Title:
More migrations with constant load
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** Changed in: linux (Ubuntu)
Status: In Progress => Fix Released
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Title:
More migrations with constant load
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** Changed in: ubuntu-power-systems
Status: Fix Committed => Fix Released
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Title:
More migrations with constant load
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** Changed in: ubuntu-power-systems
Status: In Progress => Fix Committed
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Title:
More migrations with constant load
To manage
--- Comment From jhop...@us.ibm.com 2017-10-30 16:55 EDT---
Thanks, I verified the fix in -proposed dramatically reduces unnecessary
migrations as expected and improves performance using an underutilized ebizzy
testcase.
with previous kernel:
4.10.0-34-generic
5,640
This bug was fixed in the package linux - 4.10.0-38.42
---
linux (4.10.0-38.42) zesty; urgency=low
* linux: 4.10.0-38.42 -proposed tracker (LP: #1722330)
* Controller lockup detected on ProLiant DL380 Gen9 with P440 Controller
(LP: #1720359)
- scsi: hpsa: limit transfer
Hello IBM,
Could you please verify the fix with the zesty kernel currently in
-proposed?
Thank you!
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Title:
More migrations with constant load
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
zesty' to 'verification-done-zesty'. If the problem still exists, change
the tag
** Changed in: linux (Ubuntu Zesty)
Status: In Progress => Fix Committed
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Title:
More migrations with constant load
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** Description changed:
+ == SRU Justification ==
+ There is a significantly higher number of task migrations when the load is
+ fixed and not balanced across cores.
+
+ Benchmark results are posted in the bug description and in the commits
+ git log.
+
+ This bug is resolved by mainline
** Tags added: triage-g
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Title:
More migrations with constant load
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** Changed in: ubuntu-power-systems
Status: Triaged => In Progress
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Title:
More migrations with constant load
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@jhopper, yes, I will submit a SRU request for commit 05b40e0577 to be
included in 17.04.
** Changed in: linux (Ubuntu)
Status: Triaged => In Progress
** Changed in: linux (Ubuntu)
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) =>
Joseph Salisbury
Thanks for the update. Can this issue now be closed?
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Title:
More migrations with constant load
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You may have to install the linux-tools-common with the stock kernel
before installing the test kernel?
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Title:
More migrations with constant
** Changed in: ubuntu-power-systems
Status: New => Triaged
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Title:
More migrations with constant load
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Did you happen to install both the linux-image and linux-image-extra
.deb packages?
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Title:
More migrations with constant load
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I built a Zesty test kernel with commit 05b40e0577. The test kernel can
be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1713576
Can you test this kernel and see if it resolves this bug?
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** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Status: New => Triaged
** Tags added: kernel-da-key
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** Also affects: ubuntu-power-systems
Importance: Undecided
Status: New
** Changed in: ubuntu-power-systems
Importance: Undecided => High
** Changed in: ubuntu-power-systems
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
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