On Wed, 2025-07-16 at 13:25 -0700, William McVicker wrote: > On 07/16/2025, Salvatore Bonaccorso wrote: > > Hi, > > > > On Thu, Jul 10, 2025 at 09:39:28AM -0700, William McVicker wrote: > > > Hi, > > > > > > Recently utilization clamping was enabled in the 6.15 experimental kernel via > > > the options UCLAMP_TASK and UCLAMP_TASK_GROUP [1] per the request in [2]. I'd > > > like to request for this change to backported to the ARM64 6.12 stable kernel > > > to allow us to use this feature with a stable kernel for better performance > > > management of VMs on arm64 servers. > > > > > > Please let me know if there are any concerns or additional steps I need to > > > take. > > > > This is a new feature, and at this point of the release preparation > > for trixie it won't be accepted anymore as it is not adding hardware > > support. > > > > That means you likely will need to use later a bpo version for trixie. > > Thanks for the response! Yes, I'm fine with using a bpo kernel version. > Currently we are using the kernel version 6.12.32-1~bpo12+1. Is it possible to > backport the change to the bookworm bpo kernel? As this change was requested too late for trixie, it is not suitable for bookworm-backports. In general, <release-N>-backports can only be used for backports from <release-N+1>. There *are* also <release-N>-backports-sloppy suites which can contain backports from <release-N+2>, but I have never uploaded kernel packages to those and I don't plan to start. Ben. -- Ben Hutchings The two most common things in the universe are hydrogen and stupidity.
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