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From: xiubli@redhat.com
To: jlayton@kernel.org
Cc: idryomov@gmail.com, pdonnell@redhat.com,
	ceph-devel@vger.kernel.org, Xiubo Li <xiubli@redhat.com>
Subject: [PATCH 1/2] ceph: send the read/write io size metrics to mds
Date: Wed, 12 May 2021 17:34:42 +0800	[thread overview]
Message-ID: <20210512093443.35128-2-xiubli@redhat.com> (raw)
In-Reply-To: <20210512093443.35128-1-xiubli@redhat.com>

From: Xiubo Li <xiubli@redhat.com>

URL: https://tracker.ceph.com/issues/49913
Signed-off-by: Xiubo Li <xiubli@redhat.com>
---
 fs/ceph/metric.c | 25 ++++++++++++++++++++++++-
 fs/ceph/metric.h | 30 +++++++++++++++++++++++++++++-
 2 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/fs/ceph/metric.c b/fs/ceph/metric.c
index fbeb8f2fe5ad..d6c76f1667ed 100644
--- a/fs/ceph/metric.c
+++ b/fs/ceph/metric.c
@@ -20,6 +20,8 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc,
 	struct ceph_opened_files *files;
 	struct ceph_pinned_icaps *icaps;
 	struct ceph_opened_inodes *inodes;
+	struct ceph_read_io_size *rsize;
+	struct ceph_write_io_size *wsize;
 	struct ceph_client_metric *m = &mdsc->metric;
 	u64 nr_caps = atomic64_read(&m->total_caps);
 	struct ceph_msg *msg;
@@ -30,7 +32,8 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc,
 
 	len = sizeof(*head) + sizeof(*cap) + sizeof(*read) + sizeof(*write)
 	      + sizeof(*meta) + sizeof(*dlease) + sizeof(*files)
-	      + sizeof(*icaps) + sizeof(*inodes);
+	      + sizeof(*icaps) + sizeof(*inodes) + sizeof(*rsize)
+	      + sizeof(*wsize);
 
 	msg = ceph_msg_new(CEPH_MSG_CLIENT_METRICS, len, GFP_NOFS, true);
 	if (!msg) {
@@ -131,6 +134,26 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc,
 	inodes->total = cpu_to_le64(sum);
 	items++;
 
+	/* encode the read io size metric */
+	rsize = (struct ceph_read_io_size *)(inodes + 1);
+	rsize->type = cpu_to_le32(CLIENT_METRIC_TYPE_READ_IO_SIZES);
+	rsize->ver = 1;
+	rsize->compat = 1;
+	rsize->data_len = cpu_to_le32(sizeof(*rsize) - 10);
+	rsize->total_ops = cpu_to_le64(m->total_reads);
+	rsize->total_size = cpu_to_le64(m->read_size_sum);
+	items++;
+
+	/* encode the write io size metric */
+	wsize = (struct ceph_write_io_size *)(rsize + 1);
+	wsize->type = cpu_to_le32(CLIENT_METRIC_TYPE_WRITE_IO_SIZES);
+	wsize->ver = 1;
+	wsize->compat = 1;
+	wsize->data_len = cpu_to_le32(sizeof(*wsize) - 10);
+	wsize->total_ops = cpu_to_le64(m->total_writes);
+	wsize->total_size = cpu_to_le64(m->write_size_sum);
+	items++;
+
 	put_unaligned_le32(items, &head->num);
 	msg->front.iov_len = len;
 	msg->hdr.version = cpu_to_le16(1);
diff --git a/fs/ceph/metric.h b/fs/ceph/metric.h
index 4bd92689bf12..44b0f478b84b 100644
--- a/fs/ceph/metric.h
+++ b/fs/ceph/metric.h
@@ -17,8 +17,10 @@ enum ceph_metric_type {
 	CLIENT_METRIC_TYPE_OPENED_FILES,
 	CLIENT_METRIC_TYPE_PINNED_ICAPS,
 	CLIENT_METRIC_TYPE_OPENED_INODES,
+	CLIENT_METRIC_TYPE_READ_IO_SIZES,
+	CLIENT_METRIC_TYPE_WRITE_IO_SIZES,
 
-	CLIENT_METRIC_TYPE_MAX = CLIENT_METRIC_TYPE_OPENED_INODES,
+	CLIENT_METRIC_TYPE_MAX = CLIENT_METRIC_TYPE_WRITE_IO_SIZES,
 };
 
 /*
@@ -34,6 +36,8 @@ enum ceph_metric_type {
 	CLIENT_METRIC_TYPE_OPENED_FILES,	\
 	CLIENT_METRIC_TYPE_PINNED_ICAPS,	\
 	CLIENT_METRIC_TYPE_OPENED_INODES,	\
+	CLIENT_METRIC_TYPE_READ_IO_SIZES,	\
+	CLIENT_METRIC_TYPE_WRITE_IO_SIZES,	\
 						\
 	CLIENT_METRIC_TYPE_MAX,			\
 }
@@ -136,6 +140,30 @@ struct ceph_opened_inodes {
 	__le64 total;
 } __packed;
 
+/* metric read io size header */
+struct ceph_read_io_size {
+	__le32 type;     /* ceph metric type */
+
+	__u8  ver;
+	__u8  compat;
+
+	__le32 data_len; /* length of sizeof(opened_inodes + total) */
+	__le64 total_ops;
+	__le64 total_size;
+} __packed;
+
+/* metric write io size header */
+struct ceph_write_io_size {
+	__le32 type;     /* ceph metric type */
+
+	__u8  ver;
+	__u8  compat;
+
+	__le32 data_len; /* length of sizeof(opened_inodes + total) */
+	__le64 total_ops;
+	__le64 total_size;
+} __packed;
+
 struct ceph_metric_head {
 	__le32 num;	/* the number of metrics that will be sent */
 } __packed;
-- 
2.27.0


  reply	other threads:[~2021-05-12  9:35 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12  9:34 [PATCH 0/2] ceph: send io size metrics to mds daemon xiubli
2021-05-12  9:34 ` xiubli [this message]
2021-05-12  9:34 ` [PATCH 2/2] ceph: simplify the metrics struct xiubli
2021-05-12 11:18   ` Jeff Layton
2021-05-12 12:35     ` Xiubo Li

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