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-next v3 2/2] mm: vmscan: add new event to trace shrink lru To: Yu Zhao Cc: akpm@linux-foundation.org, mm-commits@vger.kernel.org, rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, opensource.kernel@vivo.com, Linux-MM , linux-kernel@vger.kernel.org References: <20231214013450.5734-1-cuibixuan@vivo.com> <20231214013450.5734-3-cuibixuan@vivo.com> From: Bixuan Cui In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-ClientProxiedBy: TY2PR02CA0010.apcprd02.prod.outlook.com (2603:1096:404:56::22) To TYZPR06MB4045.apcprd06.prod.outlook.com (2603:1096:400:21::8) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TYZPR06MB4045:EE_|OS8PR06MB7440:EE_ X-MS-Office365-Filtering-Correlation-Id: 4d4cac6e-0124-452a-1bc4-08dbfd0a05ed X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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Ssu50K/mHiqBjrRsO9CzDyYZEG5kg1wPSocIXLXW5KHUWih9wgPVmyml0hMaPaN2UW0Rssl+FdAW9CPle0oShH5K/vSMYeuOezdg1OgLxbC1Nc+BYX8QAnXLPH7sK6T7aL6zaRPZif+GZw0Y7rw0IHbrHYqtB0d7HQs7jHo26J4fRPZodw9xgzqa2xcwqz+o39RZh8gGJayDZvV8LEqzhEgOgeEZ7JPANm642/eNT0I2ayVRjo9bdjsKmVQ3sgpz93cdqiKZ4eVDLl0osG8VEZ7WYZMTRjcYn753rqMUPkKo2zAU= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000517, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 在 2023/12/14 11:59, Yu Zhao 写道: >> Example of output: >> kswapd0-103 [007] ..... 1098.353020: mm_vmscan_lru_shrink_active_start: nid=0 >> kswapd0-103 [007] ..... 1098.353040: mm_vmscan_lru_shrink_active_end: nid=0 nr_taken=32 nr_active=0 nr_deactivated=32 nr_referenced=0 priority=6 flags=RECLAIM_WB_FILE|RECLAIM_WB_ASYNC >> kswapd0-103 [007] ..... 1098.353040: mm_vmscan_lru_shrink_inactive_start: nid=0 >> kswapd0-103 [007] ..... 1098.353094: mm_vmscan_lru_shrink_inactive_end: nid=0 nr_scanned=32 nr_reclaimed=0 nr_dirty=0 nr_writeback=0 nr_congested=0 nr_immediate=0 nr_activate_anon=0 nr_activate_file=0 nr_ref_keep=32 nr_unmap_fail=0 priority=6 flags=RECLAIM_WB_ANON|RECLAIM_WB_ASYNC >> kswapd0-103 [007] ..... 1098.353094: mm_vmscan_lru_shrink_inactive_start: nid=0 >> kswapd0-103 [007] ..... 1098.353162: mm_vmscan_lru_shrink_inactive_end: nid=0 nr_scanned=32 nr_reclaimed=21 nr_dirty=0 nr_writeback=0 nr_congested=0 nr_immediate=0 nr_activate_anon=0 nr_activate_file=0 nr_ref_keep=11 nr_unmap_fail=0 priority=6 flags=RECLAIM_WB_FILE|RECLAIM_WB_ASYNC >> >> Signed-off-by: Bixuan Cui > NAK. > > A _start should always be paired with an _end unless there is a good > reason not to. Yes, I want to get the duration of shrink lru and slab (including shrink_active_list()/shrink_inactive_list()/shrinker->count_objects()/shrinker->scan_objects()),and then calculate the memory recycling rate. > > mm-commits@ is the wrong mailing list to submit MM patches. Thanks for reminding. > > Is the build error Andrew pointed out earlier fixed? If so, where is > it credited to him? Build error has been fixed in v2 patch, changes log: v3: Swap the positions of 'nid' and 'freeable' to prevent the hole in the trace event. v2: Modify trace_mm_vmscan_lru_shrink_inactive() in evict_folios() at the same time. Thanks Bixuan Cui