Date: Wed, 20 Mar 2024 12:46:33 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 277837] coredirector: Intel Thread Director / Hardware Feedback Interface new driver [patch] Message-ID: <bug-277837-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D277837 Bug ID: 277837 Summary: coredirector: Intel Thread Director / Hardware Feedback Interface new driver [patch] Product: Base System Version: CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: koinec@yahoo.co.jp Created attachment 249326 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D249326&action= =3Dedit README-coredirector.txt Hello. I developed the Intel Thread Director (ITD) / Hardware Feedback Interfce (H= FI) device driver to obtain performance/efficiency information for each CPU cor= e, which was implemented to improve the performance of Intel hybrid architectu= re CPUs. (e.g. Raptor Lake (refresh), Alder Lake, LakeField processors) This driver simply obtains performance/efficiency information from the CPU = and stores it in the "cpu_group" struct data referenced by the ULE scheduler. However, since the ULE scheduler side is not yet supported, performance/efficiency cannot be improved by installing this driver at this time. I will try to modify the ULE scheduler side in the future, but I posted this driver first because it can be implemented independently of this driver and= it is difficult to modify the ULE scheduler. There are multiple patches. The purpose and application method of each is summarized in README-coredirector.txt file. Please merge it into the FreeBSD kernel source tree if possible. Also, I'm new to creating a FreeBSD's kernel patch. If you find any problems with the posting method, source code style, etc., I would be happy if you could tell me how to deal with them. Best regards. --=20 You are receiving this mail because: You are the assignee for the bug.=
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