** Also affects: linux-nvidia (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: linux-nvidia (Ubuntu Noble)
Importance: Undecided
Status: New
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2059316
Title:
backport arm64 THP improvements from 6.9
Status in linux package in Ubuntu:
In Progress
Status in linux-nvidia package in Ubuntu:
New
Status in linux source package in Noble:
New
Status in linux-nvidia source package in Noble:
New
Bug description:
Initial support for multi-size THP landed upstream in v6.8. In the 6.9
merge window, 2 other series have landed that show significant
performance improvements on arm64
mm/memory: optimize fork() with PTE-mapped THP
https://lkml.iu.edu/hypermail/linux/kernel/2401.3/02766.html
Transparent Contiguous PTEs for User Mappings:
https://lwn.net/Articles/962330/
On an Ampere AltraMax system w/ 4K page size, kernel builds in a tmpfs
are reduced from 6m30s to 5m17s, a ~19% improvement.
It has been reported that this can have a *10x* improvement for
certain GPU workloads on ARM:
https://lwn.net/Articles/954094/
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