** Changed in: linux-oem-6.11 (Ubuntu)
Status: New => Invalid
** Changed in: hwe-next
Status: New => Fix Released
** Changed in: linux-oem-6.11 (Ubuntu Oracular)
Status: New => Invalid
** Changed in: linux-oem-6.11 (Ubuntu Noble)
Status: New => Invalid
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-6.11 in Ubuntu.
https://bugs.launchpad.net/bugs/2077858
Title:
Fix ethernet performance on JSL and EHL
Status in HWE Next:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-6.11 package in Ubuntu:
Invalid
Status in linux source package in Noble:
Fix Released
Status in linux-oem-6.11 source package in Noble:
Invalid
Status in linux source package in Oracular:
Fix Released
Status in linux-oem-6.11 source package in Oracular:
Invalid
Bug description:
[Impact]
Sub-optimal ethernet performance on Intel JSL and EHL platform with
Realtek PCIe NIC.
Iperf shows the network throughput can only reach around 75% of
[Fix]
The CPU idle state transition C1 -> C1E -> C0 overhead can be too high,
so disabling C1E to increase the IRQ latency and DMA speed.
[Test]
With the patch applied, iperf shows over 95% of network throughput
consistently.
[Where problems could occur]
Disabling C1E can theoretically increase power consumption slightly.
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https://bugs.launchpad.net/hwe-next/+bug/2077858/+subscriptions
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