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AJvYcCWzgU8pkNiLZrihtYHeOjRYjUhZ9XxBaFUhuKatBls/9w4YRYMbg60tZswzcDunSKqHl1w5WtYjyvkpjYrbC5ZVwlnXSc7RZ4W4pY57 X-Gm-Message-State: AOJu0Yylz1vBASEJHI4mO1F4d2r6stXqkMJJTk0hAopvjGBd4EzrGA4i tO+OV2kH6nAQgcuUHHFXuidZwTkiGSyNuEB6RxVHjrTFYEyqfaLMyPPBpp4a0BDSRBWOxWLeoqT els0= X-Received: by 2002:a17:90b:4ace:b0:299:3efe:8209 with SMTP id mh14-20020a17090b4ace00b002993efe8209mr9461983pjb.4.1708507276025; Wed, 21 Feb 2024 01:21:16 -0800 (PST) Received: from ubuntu-hf2.default.svc.cluster.local ([101.127.248.173]) by smtp.gmail.com with ESMTPSA id y13-20020a17090aca8d00b002995babd9b0sm8461290pjt.10.2024.02.21.01.21.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Feb 2024 01:21:15 -0800 (PST) From: Haifeng Xu To: reinette.chatre@intel.com Cc: fenghua.yu@intel.com, babu.moger@amd.com, peternewman@google.com, x86@kernel.org, linux-kernel@vger.kernel.org, Haifeng Xu Subject: [PATCH v2 0/2] Track llc_occpuancy of RMIDs in limbo list Date: Wed, 21 Feb 2024 09:20:59 +0000 Message-Id: <20240221092101.90740-1-haifeng.xu@shopee.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791499760854993715 X-GMAIL-MSGID: 1791499760854993715 After removing a monitor group, its RMID may not be freed immediately unless its llc_occupancy is less than the re-allocation threshold. If turning up the threshold, the RMID can be reused. In order to know how much the threshold should be, it's necessary to acquire the llc_occupancy. The patch series provides a new tracepoint to track the llc_occupancy. Changes since v1: - Rename pseudo_lock_event.h instead of creating a new header file. - Modify names used in the new tracepoint - Update changelog Haifeng Xu (2): x86/resctrl: Rename pseudo_lock_event.h to trace.h x86/resctrl: Add tracepoint for llc_occupancy tracking arch/x86/kernel/cpu/resctrl/monitor.c | 2 ++ arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 2 +- .../resctrl/{pseudo_lock_event.h => trace.h} | 21 +++++++++++++++---- 3 files changed, 20 insertions(+), 5 deletions(-) rename arch/x86/kernel/cpu/resctrl/{pseudo_lock_event.h => trace.h} (64%)