This bug was fixed in the package linux-azure - 4.15.0-1045.49~14.04.1
---
linux-azure (4.15.0-1045.49~14.04.1) trusty; urgency=medium
[ Ubuntu: 4.15.0-1045.49 ]
* [linux-azure] Storage performance drop on RAID (LP: #1828248)
- Revert "blk-mq: remove the request_list usage"
This bug was fixed in the package linux-azure - 4.15.0-1045.49
---
linux-azure (4.15.0-1045.49) xenial; urgency=medium
* [linux-azure] Storage performance drop on RAID (LP: #1828248)
- Revert "blk-mq: remove the request_list usage"
[ Ubuntu: 4.15.0-50.54 ]
* CVE-2018-1212
Yes, that is correct. Comment #6. Sorry for the typo.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1828248
Title:
[linux-azure] Storage performance drop on RAID
Status in lin
Morning Joe,
On 5/14/19 8:40 AM, Joseph Salisbury wrote:
> @marcelo, we do want the changes requested in comment #5 in bug 1819689.
> We can wait for the results of Long Li's investigation before proceeding
> there.
>
that is the revert in comment #6, right?
Terry
--
You received this bug noti
Thanks for the feedback, @jsalisbury.
So we are proceeding with the revert for now. Later when Long Li's
investigation is ready, can you open a new bug listing the remaining
commits that need to be included?
--
You received this bug notification because you are a member of Kernel
Packages, which
@marcelo, we do want the changes requested in comment #5 in bug 1819689.
We can wait for the results of Long Li's investigation before proceeding
there.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.la
@longli I would like your assessment of the changes that we've made here
to get back to expected performance. I know we are not getting the same
results on NVMe devices with 16.04 and 18.04 and I'm wondering if
there's something substantially different with the 4.15 kernel in use on
16.04 that prev
This patch was intended to increase performance, not reduce it. Is it
too late to revert it?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1828248
Title:
[linux-azure] Storage p
** Tags added: patch
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1828248
Title:
[linux-azure] Storage performance drop on RAID
Status in linux-azure package in Ubuntu:
New
S
Hi, Joe. Do you think the revert is enough for now, or should we discuss
about eventyually including the changes that you had mentioned on the
comment #5 in the bug #1819689?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in U
Exactly, Joseph. I'm attaching the exact patch I used for building the
test kernel.
** Patch added: "0001-Revert-blk-mq-remove-the-request_list-usage.patch"
https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1828248/+attachment/5263471/+files/0001-Revert-blk-mq-remove-the-request_list-
@Marcelo Cerri, just to confirm, the test kernel posted in comment #6
only had commit 7ac257b862f2c reverted?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1828248
Title:
[linux
** Also affects: linux-azure (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux-azure (Ubuntu Xenial)
Status: New => Fix Committed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
The test kernel is reaching 52K IOPS as expected.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1828248
Title:
[linux-azure] Storage performance drop on RAID
Status in linux-azu
I built a test kernel reverting the commit that Joe has mention:
https://kernel.ubuntu.com/~mhcerri/azure/xenial-linux-
azure-4.15.0-1044.48+1828248/
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.laun
VM size is Standard_DS14_v2
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1828248
Title:
[linux-azure] Storage performance drop on RAID
Status in linux-azure package in Ubuntu:
Adrian, can you add the VM size here, they are trying to reproduce.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1828248
Title:
[linux-azure] Storage performance drop on RAID
S
This commit was also added to the Ubuntu-azure-4.18.0-1017 kernel. Are
we seeing expected performing with that kernel?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1828248
Title:
The bug number from comment one should have been bug 1819689
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1828248
Title:
[linux-azure] Storage performance drop on RAID
Status i
The following commit was added in bug fa55b5d226dd.
7ac257b862f2c (“blk-mq: remove the request_list usage”)
This commit cleans up unused code in block-mq (mq uses pre-allocated
tags to allocate request, not request_list as it's used only in legacy
queue).
A test kernel with a revert of this comm
20 matches
Mail list logo