diff options
| author | Thomas Ballasi <tballasi@linux.microsoft.com> | 2026-03-16 09:09:08 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-04-05 13:53:04 -0700 |
| commit | 77a9c445b668765129f877d3c0d08ec4dc3ce77b (patch) | |
| tree | d3533d9ff1198a7f6596bb17a2219070da542b5c /include/trace | |
| parent | 874a0a566ede40f3d6062cae8fe1022e616edd1a (diff) | |
mm: vmscan: add PIDs to vmscan tracepoints
The changes aims at adding additionnal tracepoints variables to help
debuggers attribute them to specific processes.
Link: https://lkml.kernel.org/r/20260316160908.42727-4-tballasi@linux.microsoft.com
Signed-off-by: Thomas Ballasi <tballasi@linux.microsoft.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/vmscan.h | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h index c9e637c10f96..4445a8d9218d 100644 --- a/include/trace/events/vmscan.h +++ b/include/trace/events/vmscan.h @@ -140,10 +140,12 @@ DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_begin_template, __entry->memcg_id = mem_cgroup_id(memcg); ), - TP_printk("order=%d gfp_flags=%s memcg_id=%llu", + TP_printk("order=%d gfp_flags=%s pid=%d memcg_id=%llu %s", __entry->order, show_gfp_flags(__entry->gfp_flags), - __entry->memcg_id) + __entry->ent.pid, + __entry->memcg_id, + __event_in_irq() ? "(in-irq)" : "") ); DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_begin, @@ -185,9 +187,11 @@ DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_end_template, __entry->memcg_id = mem_cgroup_id(memcg); ), - TP_printk("nr_reclaimed=%lu memcg_id=%llu", + TP_printk("nr_reclaimed=%lu pid=%d memcg_id=%llu %s", __entry->nr_reclaimed, - __entry->memcg_id) + __entry->ent.pid, + __entry->memcg_id, + __event_in_irq() ? "(in-irq)" : "") ); DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_direct_reclaim_end, @@ -248,17 +252,19 @@ TRACE_EVENT(mm_shrink_slab_start, __entry->memcg_id = mem_cgroup_id(memcg); ), - TP_printk("%pS %p: nid: %d memcg_id: %llu objects to shrink %ld gfp_flags %s cache items %ld delta %lld total_scan %ld priority %d", + TP_printk("%pS %p: nid: %d pid: %d memcg_id: %llu objects to shrink %ld gfp_flags %s cache items %ld delta %lld total_scan %ld priority %d %s", __entry->shrink, __entry->shr, __entry->nid, + __entry->ent.pid, __entry->memcg_id, __entry->nr_objects_to_shrink, show_gfp_flags(__entry->gfp_flags), __entry->cache_items, __entry->delta, __entry->total_scan, - __entry->priority) + __entry->priority, + __event_in_irq() ? "(in-irq)" : "") ); TRACE_EVENT(mm_shrink_slab_end, @@ -290,15 +296,17 @@ TRACE_EVENT(mm_shrink_slab_end, __entry->memcg_id = mem_cgroup_id(memcg); ), - TP_printk("%pS %p: nid: %d memcg_id: %llu unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d", + TP_printk("%pS %p: nid: %d pid: %d memcg_id: %llu unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d %s", __entry->shrink, __entry->shr, __entry->nid, + __entry->ent.pid, __entry->memcg_id, __entry->unused_scan, __entry->new_scan, __entry->total_scan, - __entry->retval) + __entry->retval, + __event_in_irq() ? "(in-irq)" : "") ); TRACE_EVENT(mm_vmscan_lru_isolate, |