Ike has since done some more extensive testing, and found that
performance actually *drops* with longer iperf runs. With a 900s run,
he's seeing it go down to ~200Mbps, while the kernel emits messages like
these:
[ 1070.047048] ITS queue timeout (65440 65504 1120)
[ 1070.051658] ITS cmd it
** Tags removed: verification-done-cosmic
** Tags added: verification-failed-cosmic
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https://bugs.launchpad.net/bugs/1800664
Title:
Add checksum offload and TSO support for
This bug was fixed in the package linux - 4.18.0-12.13
---
linux (4.18.0-12.13) cosmic; urgency=medium
* linux: 4.18.0-12.13 -proposed tracker (LP: #1802743)
* [FEAT] Guest-dedicated Crypto Adapters (LP: #1787405)
- s390/zcrypt: Add ZAPQ inline function.
- s390/zcrypt: Re
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-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verifica
** Changed in: linux (Ubuntu Disco)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1800664
Title:
Add checksum offload and TSO support for HiN
** Changed in: linux (Ubuntu Cosmic)
Status: In Progress => Fix Committed
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1800664
Title:
Add checksum offload and TSO support for Hi
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-
cosmic' to 'verification-done-cosmic'. If the problem still exists,
change the tag 'verifica
Performance is much increased with cosmic-proposed kernel
ubuntu@d06-3:~$ iperf -c 192.168.99.1 -P5 -t 900;uname -a
Client connecting to 192.168.99.1, TCP port 5001
TCP window size: 85.0 KByte (default)
--
This bug was fixed in the package linux - 4.19.0-12.13
---
linux (4.19.0-12.13) disco; urgency=medium
* linux: 4.19.0-12.13 -proposed tracker (LP: #1813664)
* kernel oops in bcache module (LP: #1793901)
- SAUCE: bcache: never writeback a discard operation
* Disco update: 4
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