From nobody Sat Feb 7 22:21:06 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 00CBFC04A6A for ; Fri, 4 Aug 2023 20:54:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229815AbjHDUyc (ORCPT ); Fri, 4 Aug 2023 16:54:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229615AbjHDUya (ORCPT ); Fri, 4 Aug 2023 16:54:30 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D7104C34 for ; Fri, 4 Aug 2023 13:53:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1691182424; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=4OBEiq9HKlDq3EnC9rDgOXCYD/GG5hag+Y80zX9mZwQ=; b=XgjU8sddNZz8OWAbNGzkc4QtU2FHF7depgiA6GGFwUMFHcZp5SJzgZaT0IB2nJF08utCQ1 3Sxm5+06h9Uk+giPHR9Gwesmy1p8vejTJixqaiZ3HzT9L8raoD1UkEStpqltStLi7FKChf HiCwyvBJXfP8NEp8m8u7r91vCqupJXE= Received: from mimecast-mx02.redhat.com (66.187.233.73 [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-120-NP8VM07NNVSUK8P9-OwVqw-1; Fri, 04 Aug 2023 16:53:41 -0400 X-MC-Unique: NP8VM07NNVSUK8P9-OwVqw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id BAED729AA386; Fri, 4 Aug 2023 20:53:40 +0000 (UTC) Received: from localhost.localdomain.com (unknown [10.22.32.81]) by smtp.corp.redhat.com (Postfix) with ESMTP id 647BBC5796B; Fri, 4 Aug 2023 20:53:40 +0000 (UTC) From: Nico Pache To: linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: mhiramat@kernel.org, rostedt@goodmis.org Subject: [PATCH] tracing: vmscan: add file/anon identifier to lru_shrink_[in]active tracepoints Date: Fri, 4 Aug 2023 14:53:26 -0600 Message-ID: <20230804205326.33952-1-npache@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add the file variable to the tracepoint data for both the active and inactive lru shrink functions. This should help increase observability in the LRU reclaim algorithm. Signed-off-by: Nico Pache --- include/trace/events/vmscan.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h index d2123dd960d5..055d50c10842 100644 --- a/include/trace/events/vmscan.h +++ b/include/trace/events/vmscan.h @@ -372,6 +372,7 @@ TRACE_EVENT(mm_vmscan_lru_shrink_inactive, __field(unsigned long, nr_unmap_fail) __field(int, priority) __field(int, reclaim_flags) + __field(int, file) ), =20 TP_fast_assign( @@ -388,10 +389,11 @@ TRACE_EVENT(mm_vmscan_lru_shrink_inactive, __entry->nr_unmap_fail =3D stat->nr_unmap_fail; __entry->priority =3D priority; __entry->reclaim_flags =3D trace_reclaim_flags(file); + __entry->file =3D file; ), =20 - TP_printk("nid=3D%d nr_scanned=3D%ld nr_reclaimed=3D%ld nr_dirty=3D%ld nr= _writeback=3D%ld nr_congested=3D%ld nr_immediate=3D%ld nr_activate_anon=3D%= d nr_activate_file=3D%d nr_ref_keep=3D%ld nr_unmap_fail=3D%ld priority=3D%d= flags=3D%s", - __entry->nid, + TP_printk("nid=3D%d is_file=3D%d nr_scanned=3D%ld nr_reclaimed=3D%ld nr_d= irty=3D%ld nr_writeback=3D%ld nr_congested=3D%ld nr_immediate=3D%ld nr_acti= vate_anon=3D%d nr_activate_file=3D%d nr_ref_keep=3D%ld nr_unmap_fail=3D%ld = priority=3D%d flags=3D%s", + __entry->nid, __entry->file, __entry->nr_scanned, __entry->nr_reclaimed, __entry->nr_dirty, __entry->nr_writeback, __entry->nr_congested, __entry->nr_immediate, @@ -417,6 +419,7 @@ TRACE_EVENT(mm_vmscan_lru_shrink_active, __field(unsigned long, nr_referenced) __field(int, priority) __field(int, reclaim_flags) + __field(int, file) ), =20 TP_fast_assign( @@ -427,10 +430,11 @@ TRACE_EVENT(mm_vmscan_lru_shrink_active, __entry->nr_referenced =3D nr_referenced; __entry->priority =3D priority; __entry->reclaim_flags =3D trace_reclaim_flags(file); + __entry->file =3D file; ), =20 - TP_printk("nid=3D%d nr_taken=3D%ld nr_active=3D%ld nr_deactivated=3D%ld n= r_referenced=3D%ld priority=3D%d flags=3D%s", - __entry->nid, + TP_printk("nid=3D%d is_file=3D%d nr_taken=3D%ld nr_active=3D%ld nr_deacti= vated=3D%ld nr_referenced=3D%ld priority=3D%d flags=3D%s", + __entry->nid, __entry->file, __entry->nr_taken, __entry->nr_active, __entry->nr_deactivated, __entry->nr_referenced, __entry->priority, --=20 2.41.0