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From:   "Tobin C. Harding" <tobin@kernel.org>
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     "Tobin C. Harding" <tobin@kernel.org>,
        Roman Gushchin <guro@fb.com>,
        Alexander Viro <viro@ftp.linux.org.uk>,
        Christoph Hellwig <hch@infradead.org>,
        Pekka Enberg <penberg@cs.helsinki.fi>,
        David Rientjes <rientjes@google.com>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>,
        Christopher Lameter <cl@linux.com>,
        Matthew Wilcox <willy@infradead.org>,
        Miklos Szeredi <mszeredi@redhat.com>,
        Andreas Dilger <adilger@dilger.ca>,
        Waiman Long <longman@redhat.com>,
        Tycho Andersen <tycho@tycho.ws>,
        "Theodore Ts'o" <tytso@mit.edu>, Andi Kleen <ak@linux.intel.com>,
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        Nick Piggin <npiggin@gmail.com>,
        Rik van Riel <riel@redhat.com>,
        Hugh Dickins <hughd@google.com>,
        Jonathan Corbet <corbet@lwn.net>, linux-mm@kvack.org,
        linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [RFC PATCH v3 05/15] tools/vm/slabinfo: Add remote node defrag ratio output
Date:   Thu, 11 Apr 2019 11:34:31 +1000
Message-Id: <20190411013441.5415-6-tobin@kernel.org>
In-Reply-To: <20190411013441.5415-1-tobin@kernel.org>
References: <20190411013441.5415-1-tobin@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
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Add output line for NUMA remote node defrag ratio.

Signed-off-by: Tobin C. Harding <tobin@kernel.org>
---
 tools/vm/slabinfo.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index cbfc56c44c2f..d2c22f9ee2d8 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -34,6 +34,7 @@ struct slabinfo {
 	unsigned int sanity_checks, slab_size, store_user, trace;
 	int order, poison, reclaim_account, red_zone;
 	int movable, ctor;
+	int remote_node_defrag_ratio;
 	unsigned long partial, objects, slabs, objects_partial, objects_total;
 	unsigned long alloc_fastpath, alloc_slowpath;
 	unsigned long free_fastpath, free_slowpath;
@@ -377,6 +378,10 @@ static void slab_numa(struct slabinfo *s, int mode)
 	if (skip_zero && !s->slabs)
 		return;
 
+	if (mode) {
+		printf("\nNUMA remote node defrag ratio: %3d\n",
+		       s->remote_node_defrag_ratio);
+	}
 	if (!line) {
 		printf("\n%-21s:", mode ? "NUMA nodes" : "Slab");
 		for(node = 0; node <= highest_node; node++)
@@ -1272,6 +1277,8 @@ static void read_slab_dir(void)
 			slab->cpu_partial_free = get_obj("cpu_partial_free");
 			slab->alloc_node_mismatch = get_obj("alloc_node_mismatch");
 			slab->deactivate_bypass = get_obj("deactivate_bypass");
+			slab->remote_node_defrag_ratio =
+					get_obj("remote_node_defrag_ratio");
 			chdir("..");
 			if (read_slab_obj(slab, "ops")) {
 				if (strstr(buffer, "ctor :"))
-- 
2.21.0