** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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Title:
Dell XPS 9360 wifi 5G performance is poor
To manage
This is the in progress discussion thread
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1670041
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Title:
Dell XPS 9360 wifi 5G performance
> Given that and assuming it still has the large performance improvement on
> newer kernel
> I think it's worth an attempt to submit upstream along with the test data.
Did anyone do this and can point me to the discussion in the archives?
FWIW, from *a quick look* it seems the patch that was
** Changed in: hwe-next/xenial
Status: Fix Committed => Fix Released
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Title:
Dell XPS 9360 wifi 5G performance is poor
To manage
This bug was fixed in the package linux - 4.4.0-83.106
---
linux (4.4.0-83.106) xenial; urgency=low
* linux: 4.4.0-83.106 -proposed tracker (LP: #1700541)
* CVE-2017-1000364
- Revert "UBUNTU: SAUCE: mm: Only expand stack if guard area is hit"
- Revert "mm: do not
Verified with 201606-22355 Dell XPS 13 9360
The fix in -proposed make significant improvement for the performance.
Before -proposed:
== AC ==
sftp put ubuntu-17.04-desktop-amd64.iso (1535MB) 1.1MB/s 23:45
iperf speed test: 0.0-120.1 sec 140 MBytes 9.81 Mbits/sec
== N ==
iperf speed test:
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-
xenial' to 'verification-done-xenial'. If the problem still exists,
change the tag
** Changed in: linux (Ubuntu Xenial)
Status: New => Fix Committed
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Title:
Dell XPS 9360 wifi 5G performance is poor
To manage
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
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Title:
Dell XPS 9360 wifi 5G performance is poor
To manage
@acelan,
I'm unsure on where this patch first came from and also don't understand the
impact from calling this. I know it was discussed on some forums as a solution
to performance problems. The reason that the vendor hasn't submitted upstream
is they said there was discussion that this should
** Changed in: hwe-next/xenial
Status: Fix Released => Invalid
** Changed in: hwe-next/xenial
Status: Invalid => Fix Committed
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Hi Mario,
Do you know who is the author of this patch? Why he doesn't submit it?
And are there any drawbacks by calling that function?
I could SRU the patch to Ubuntu kernel(4.8/4.10), but it's a little bit
risky to submit it to upstream if I don't understand the patch well.
To setup the test
** Changed in: hwe-next
Status: New => Fix Released
** Also affects: hwe-next/xenial
Importance: Undecided
Status: Fix Released
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Yes it looks like it was refactored as a result of f2f6ecabe, but
following the refactor here is where it would go in a newer kernel.
diff --git a/drivers/net/wireless/ath/ath10k/mac.c
b/drivers/net/wireless/ath/ath10k/mac.c
index 3029f25..8441b33 100644
---
** Tags added: patch
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Title:
Dell XPS 9360 wifi 5G performance is poor
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This patch has been submitted
** Patch added:
"0001-UBUNTU-SAUCE-ath10k-fix-the-wifi-speed-issue-for-kil.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1692836/+attachment/4883024/+files/0001-UBUNTU-SAUCE-ath10k-fix-the-wifi-speed-issue-for-kil.patch
** Changed in: linux
** Tags added: originate-from-1669351 somerville
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Title:
Dell XPS 9360 wifi 5G performance is poor
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Test result without patch on comment #1:
11n:
Client connecting to 192.168.158.106, TCP port 5001
TCP window size: 416 KByte (WARNING: requested 100 MByte)
[ 3] local
This patch seems to fix the issue on Ubuntu 4.4 kernel.
The ath10k driver structure has been changed after 4.4, so this fix can't apply
to 4.8+ kernel,
and it looks like should stay in 4.4 kernel only.
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@
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