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\u0026\u0026 git checkout FETCH_HEAD","Cherry Pick":"git fetch https://review.lttng.org/userspace-rcu refs/changes/57/18257/1 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.lttng.org/userspace-rcu refs/changes/57/18257/1 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.lttng.org/userspace-rcu refs/changes/57/18257/1","Reset To":"git fetch https://review.lttng.org/userspace-rcu refs/changes/57/18257/1 \u0026\u0026 git reset --hard FETCH_HEAD"}}},"commit":{"parents":[{"commit":"07d074dd3c9daa7562985466cb762b673aa3afbb","subject":"Fix: leaky wfcq tests","web_links":[{"name":"gitweb","tooltip":"Open in GitWeb","url":"/gitweb?p\u003duserspace-rcu.git;a\u003dcommit;h\u003d07d074dd3c9daa7562985466cb762b673aa3afbb"}]}],"author":{"name":"Mathieu Desnoyers","email":"mathieu.desnoyers@efficios.com","date":"2026-07-09 19:48:33.000000000","tz":-240},"committer":{"name":"Mathieu Desnoyers","email":"mathieu.desnoyers@efficios.com","date":"2026-07-09 19:48:33.000000000","tz":-240},"subject":"call-rcu worker: set CPU affinity on first non-empty dequeue","message":"call-rcu worker: set CPU affinity on first non-empty dequeue\n\ncommit 28f282af1905 (\"call_rcu: pin per-CPU worker at thread startup\")\nattempts to prevent the per-cpu call-rcu worker from running on the\nwrong CPU at the beginning of the application lifetime (first ~2.5s).\n\nThe goal is to ensure good performance in that time-frame.\n\nHowever, pinning each worker threads at thread startup for each CPU for\nper-cpu call-rcu worker configurations will trigger a lot of CPU wakeups\non short-lived processes using few CPUs when they are deployed on large\nSMP machines: this wakes up every CPU just to set the affinity. This is\ndetrimental for energy consumption of the CPUs.\n\nRefactor the call-rcu worker thread code to call set_thread_cpu_affinity()\nonly when call-rcu work is dequeued, and introduce an \"affinity_init\"\nboolean which allows the first call to enforce affinity initialization,\nbypassing the period mask check and the current CPU vs affinity CPU\ncheck.\n\nSigned-off-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nChange-Id: I24ee28b5133cbebd33af076321ba18aaab4d0b8e\n","web_links":[{"name":"gitweb","tooltip":"Open in GitWeb","url":"/gitweb?p\u003duserspace-rcu.git;a\u003dcommit;h\u003da95af365e9938823ff05194ba48155b5ddfb6ea9"}],"resolve_conflicts_web_links":[{"name":"gitweb","tooltip":"Open in GitWeb","url":"/gitweb?p\u003duserspace-rcu.git;a\u003dcommit;h\u003da95af365e9938823ff05194ba48155b5ddfb6ea9"}]},"branch":"refs/heads/master"}},"requirements":[],"submit_records":[{"rule_name":"gerrit~DefaultSubmitRule","status":"OK","labels":[{"label":"Code-Review","status":"MAY","applied_by":{"_account_id":1000032,"name":"Olivier Dion","display_name":"Olivier Dion","email":"odion@efficios.com","username":"oldiob","avatars":[{"url":"https://www.gravatar.com/avatar/3c8ea7bf32e219e2ae6deb82c96165df.jpg?d\u003dretro\u0026r\u003dr\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/3c8ea7bf32e219e2ae6deb82c96165df.jpg?d\u003dretro\u0026r\u003dr\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/3c8ea7bf32e219e2ae6deb82c96165df.jpg?d\u003dretro\u0026r\u003dr\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/3c8ea7bf32e219e2ae6deb82c96165df.jpg?d\u003dretro\u0026r\u003dr\u0026s\u003d120","height":120}]}},{"label":"Verified","status":"MAY"},{"label":"CI-Build","status":"MAY","applied_by":{"_account_id":1000009,"name":"Mathieu Desnoyers","email":"mathieu.desnoyers@efficios.com","username":"compudj","avatars":[{"url":"https://www.gravatar.com/avatar/7326b3e1d32b971a5e69d9730228c428.jpg?d\u003dretro\u0026r\u003dr\u0026s\u003d32","height":32},{"url":"https://www.gravatar.com/avatar/7326b3e1d32b971a5e69d9730228c428.jpg?d\u003dretro\u0026r\u003dr\u0026s\u003d56","height":56},{"url":"https://www.gravatar.com/avatar/7326b3e1d32b971a5e69d9730228c428.jpg?d\u003dretro\u0026r\u003dr\u0026s\u003d100","height":100},{"url":"https://www.gravatar.com/avatar/7326b3e1d32b971a5e69d9730228c428.jpg?d\u003dretro\u0026r\u003dr\u0026s\u003d120","height":120}]}},{"label":"Smoke-Build-Lvl1","status":"MAY"},{"label":"Smoke-Build-Lvl2","status":"MAY"}]}],"submit_requirements":[{"name":"Smoke-Build-Lvl1","status":"NOT_APPLICABLE","is_legacy":false,"applicability_expression_result":{"fulfilled":false,"status":"FAIL"},"submittability_expression_result":{"expression":"is:false","fulfilled":true,"status":"NOT_EVALUATED","passing_atoms":[],"failing_atoms":[],"atom_explanations":{}}},{"name":"Verified","description":"CI result status for build and tests is passing","status":"SATISFIED","is_legacy":false,"applicability_expression_result":{"fulfilled":true,"status":"PASS"},"submittability_expression_result":{"expression":"-label:Verified\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":[],"failing_atoms":["label:Verified\u003dMIN"],"atom_explanations":{"label:Verified\u003dMIN":""}}},{"name":"Code-Review","description":"At least one maximum vote for label \u0027Code-Review\u0027 is required","status":"UNSATISFIED","is_legacy":false,"applicability_expression_result":{"fulfilled":true,"status":"PASS"},"submittability_expression_result":{"expression":"label:Code-Review\u003dMAX AND -label:Code-Review\u003dMIN","fulfilled":false,"status":"FAIL","passing_atoms":[],"failing_atoms":["label:Code-Review\u003dMAX","label:Code-Review\u003dMIN"],"atom_explanations":{"label:Code-Review\u003dMAX":"","label:Code-Review\u003dMIN":""}}},{"name":"Smoke-Build-Lvl2","status":"NOT_APPLICABLE","is_legacy":false,"applicability_expression_result":{"fulfilled":false,"status":"FAIL"},"submittability_expression_result":{"expression":"is:false","fulfilled":true,"status":"NOT_EVALUATED","passing_atoms":[],"failing_atoms":[],"atom_explanations":{}}}]}