From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 6FFBF329E6C for ; Mon, 16 Mar 2026 16:09:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773677365; cv=none; b=WTG5rRy627cPYlZGOGSzZryaa7JL6vEoyvBY17H7bmjiEmSc3dcSf66f+7eBv8gssIvla8E/EVh9SYJ7iNMV8vLO2lKWAJohZ+Cng9B0m5germUyq4AFYj8fvJSjUuokdVHLLm+G9J648iUkdLYyqcjm71qRBkQPH6a3cIEmuU4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773677365; c=relaxed/simple; bh=ZbESQgROV0hqrHE3lOVIl3pvm2CqxX6RbxEhdiqzHZo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=iftrMaEcL+lGMN8ZhW1kRmpYYtRUXUTPfI8m3bQrTZYQvSbMu1rFNemgHDKr39diojaeOGWr4KYEv7rk425sCViMymxIOJJo9OaI64j5Lyc3M8RhvWxAV0Qkf1Mmn3horHoekCM7hFBxDSAZf8jlKh22IxGfXJbknPXFK/0IN/U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=FB3cdTRf; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="FB3cdTRf" Received: from LAPTOP-U3CCR7C6.lan (unknown [20.236.10.206]) by linux.microsoft.com (Postfix) with ESMTPSA id C9F7020B6F12; Mon, 16 Mar 2026 09:09:23 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com C9F7020B6F12 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1773677364; bh=VcslTGd7Gwos3Z8Yii274STD1R1lKDBM+pUFy34ylok=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FB3cdTRfo3+snO46oMEGmJXEAuozyG8yA+S+kxdnoj/rjSJxeeCwC8n6x4JvSRfEz aSCn5sQzAcOzLMEQ0U5O/oxpOjV/Bc/zTn0BCBuW93O8Ew4QESji7iisuaobP1l6OZ kcmkcnNYQoMmQhkFnqHTqkmH2dCMseIe2uj/RiwU= From: Thomas Ballasi To: tballasi@linux.microsoft.com Cc: akpm@linux-foundation.org, axelrasmussen@google.com, david@kernel.org, hannes@cmpxchg.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, lorenzo.stoakes@oracle.com, mhiramat@kernel.org, mhocko@kernel.org, rostedt@goodmis.org, shakeel.butt@linux.dev, weixugc@google.com, yuanchu@google.com, zhengqi.arch@bytedance.com Subject: [PATCH v8 3/3] mm: vmscan: add PIDs to vmscan tracepoints Date: Mon, 16 Mar 2026 09:09:08 -0700 Message-Id: <20260316160908.42727-4-tballasi@linux.microsoft.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260316160908.42727-1-tballasi@linux.microsoft.com> References: <20260223171544.4750-1-tballasi@linux.microsoft.com> <20260316160908.42727-1-tballasi@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The changes aims at adding additionnal tracepoints variables to help debuggers attribute them to specific processes. Signed-off-by: Thomas Ballasi --- include/trace/events/vmscan.h | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h index 1212f6a7c223e..645b036572707 100644 --- a/include/trace/events/vmscan.h +++ b/include/trace/events/vmscan.h @@ -130,10 +130,12 @@ 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, @@ -175,9 +177,11 @@ 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, @@ -238,17 +242,19 @@ 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, @@ -280,15 +286,17 @@ 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, -- 2.45.3