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- zesty' to 'verification-done-zesty'. If the problem still exists, change the tag 'verification-needed-zesty' to 'verification-failed-zesty'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-zesty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1709220 Title: RPT related fixes missing in Ubuntu 16.04.3 Status in The Ubuntu-power-systems project: In Progress Status in linux package in Ubuntu: In Progress Status in linux source package in Zesty: Fix Committed Bug description: == SRU Justification == These four commits are Radix performance patches specific to powerpc. The patches are reported to help anywhere from 40% up to 3.5X on unixbench fork/exec testcases. The first patch was included in mainlne as of 4.12-rc1. The last three patches are still in linux-next. ---Problem Description--- The following patches are missing in the ubuntu 16.04.3 kernel https://lists.ozlabs.org/pipermail/linuxppc-dev/2017-April/156104.html https://lists.ozlabs.org/pipermail/linuxppc-dev/2017-April/156105.html https://lists.ozlabs.org/pipermail/linuxppc-dev/2017-April/157130.html ---uname output--- 4.10.0-29-generic #33~16.04.1-Ubuntu SMP Tue Jul 25 18:17:06 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux Machine Type = power9 ---Steps to Reproduce--- Did a fork and exec benchmark to look at the performance and they pointed to radix routines. Upstream commits mentioned: commit f7327e0ba3805470cced2acfa053e795362ee41d powerpc/mm/radix: Remove unnecessary ptesync commit f6b0df55cad252fedd60aa2ba75a0207d0006283 powerpc/mm/radix: Don't do page walk cache flush when doing full mm flush commit a5998fcb92552a18713b6aa5c146aa400e4d75ee powerpc/mm/radix: Optimise tlbiel flush all case To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1709220/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
