This bug was fixed in the package linux-oem-5.13 - 5.13.0-1012.16
---------------
linux-oem-5.13 (5.13.0-1012.16) focal; urgency=medium
* focal/linux-oem-5.13: 5.13.0-1012.16 -proposed tracker (LP:
#1942861)
* Fix sluggish r8169 by disaling ASPM L1.2 (LP: #1942830)
- SAUCE: r8169: Disable ASPM L1.2
* CVE-2021-3609
- can: bcm: delay release of struct bcm_op after synchronize_rcu()
- can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after
RCU is done
-- Timo Aaltonen <timo.aalto...@canonical.com> Tue, 07 Sep 2021
11:49:54 +0300
** Changed in: linux-oem-5.13 (Ubuntu Focal)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-3609
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https://bugs.launchpad.net/bugs/1942830
Title:
Fix sluggish r8169 by disaling ASPM L1.2
Status in HWE Next:
New
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem-5.13 package in Ubuntu:
Invalid
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.13 source package in Focal:
Fix Released
Status in linux-oem-5.14 source package in Focal:
Confirmed
Bug description:
[Impact]
Realtek r8169 has abysmal network speed.
[Fix]
Disable ASPM L1.2 because the device takes a long time to exit from
L1.2.
[Test]
Use `iperf` to test network speed.
When ASPM L1.2 gets disabled, TX and RX and reach ~700Mbps and ~900Mbps
respectively.
[Where problems could occur]
Disabling ASPM L1.2 can slightly increase power consumption. The CPU
package C-State seems to be unaffected so the increase is rather minor.
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