Commit cbed4ff7 authored by Luís Henriques's avatar Luís Henriques Committed by Ilya Dryomov
Browse files

ceph: split 'metric' debugfs file into several files 



Currently, all the metrics are grouped together in a single file, making
it difficult to process this file from scripts.  Furthermore, as new
metrics are added, processing this file will become even more challenging.

This patch turns the 'metric' file into a directory that will contain
several files, one for each metric.

Signed-off-by: default avatarLuís Henriques <lhenriques@suse.de>
Reviewed-by: default avatarXiubo Li <xiubli@redhat.com>
Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent c3d8e0b5

fs/ceph/debugfs.c

+56 −25
Original line number Diff line number Diff line
@@ -146,26 +146,30 @@ static int mdsc_show(struct seq_file *s, void *p) 
		   name, total, avg, _min, max, sum);			\

}



static int metric_show(struct seq_file *s, void *p)

static int metrics_file_show(struct seq_file *s, void *p)

{

	struct ceph_fs_client *fsc = s->private;

	struct ceph_mds_client *mdsc = fsc->mdsc;

	struct ceph_client_metric *m = &mdsc->metric;

	int nr_caps = 0;

	s64 total, sum, avg, min, max, sq;

	u64 sum_sz, avg_sz, min_sz, max_sz;

	struct ceph_client_metric *m = &fsc->mdsc->metric;



	sum = percpu_counter_sum(&m->total_inodes);

	seq_printf(s, "item                               total\n");

	seq_printf(s, "------------------------------------------\n");

	seq_printf(s, "%-35s%lld / %lld\n", "opened files  / total inodes",

		   atomic64_read(&m->opened_files), sum);

	seq_printf(s, "%-35s%lld / %lld\n", "pinned i_caps / total inodes",

		   atomic64_read(&m->total_caps), sum);

	seq_printf(s, "%-35s%lld / %lld\n", "opened inodes / total inodes",

		   percpu_counter_sum(&m->opened_inodes), sum);



	seq_printf(s, "\n");

	seq_printf(s, "%-35s%lld\n", "total inodes",

		   percpu_counter_sum(&m->total_inodes));

	seq_printf(s, "%-35s%lld\n", "opened files",

		   atomic64_read(&m->opened_files));

	seq_printf(s, "%-35s%lld\n", "pinned i_caps",

		   atomic64_read(&m->total_caps));

	seq_printf(s, "%-35s%lld\n", "opened inodes",

		   percpu_counter_sum(&m->opened_inodes));

	return 0;

}



static int metrics_latency_show(struct seq_file *s, void *p)

{

	struct ceph_fs_client *fsc = s->private;

	struct ceph_client_metric *m = &fsc->mdsc->metric;

	s64 total, sum, avg, min, max, sq;



	seq_printf(s, "item          total       avg_lat(us)     min_lat(us)     max_lat(us)     stdev(us)\n");

	seq_printf(s, "-----------------------------------------------------------------------------------\n");
@@ -199,7 +203,16 @@ static int metric_show(struct seq_file *s, void *p) 
	spin_unlock(&m->metadata_metric_lock);

	CEPH_LAT_METRIC_SHOW("metadata", total, avg, min, max, sq);



	seq_printf(s, "\n");

	return 0;

}



static int metrics_size_show(struct seq_file *s, void *p)

{

	struct ceph_fs_client *fsc = s->private;

	struct ceph_client_metric *m = &fsc->mdsc->metric;

	s64 total;

	u64 sum_sz, avg_sz, min_sz, max_sz;



	seq_printf(s, "item          total       avg_sz(bytes)   min_sz(bytes)   max_sz(bytes)  total_sz(bytes)\n");

	seq_printf(s, "----------------------------------------------------------------------------------------\n");
@@ -221,7 +234,15 @@ static int metric_show(struct seq_file *s, void *p) 
	spin_unlock(&m->write_metric_lock);

	CEPH_SZ_METRIC_SHOW("write", total, avg_sz, min_sz, max_sz, sum_sz);



	seq_printf(s, "\n");

	return 0;

}



static int metrics_caps_show(struct seq_file *s, void *p)

{

	struct ceph_fs_client *fsc = s->private;

	struct ceph_client_metric *m = &fsc->mdsc->metric;

	int nr_caps = 0;



	seq_printf(s, "item          total           miss            hit\n");

	seq_printf(s, "-------------------------------------------------\n");
@@ -350,8 +371,11 @@ DEFINE_SHOW_ATTRIBUTE(mdsmap); 
DEFINE_SHOW_ATTRIBUTE(mdsc);

DEFINE_SHOW_ATTRIBUTE(caps);

DEFINE_SHOW_ATTRIBUTE(mds_sessions);

DEFINE_SHOW_ATTRIBUTE(metric);

DEFINE_SHOW_ATTRIBUTE(status);

DEFINE_SHOW_ATTRIBUTE(metrics_file);

DEFINE_SHOW_ATTRIBUTE(metrics_latency);

DEFINE_SHOW_ATTRIBUTE(metrics_size);

DEFINE_SHOW_ATTRIBUTE(metrics_caps);





/*
@@ -385,8 +409,9 @@ void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc) 
	debugfs_remove(fsc->debugfs_mdsmap);

	debugfs_remove(fsc->debugfs_mds_sessions);

	debugfs_remove(fsc->debugfs_caps);

	debugfs_remove(fsc->debugfs_metric);

	debugfs_remove(fsc->debugfs_status);

	debugfs_remove(fsc->debugfs_mdsc);

	debugfs_remove_recursive(fsc->debugfs_metrics_dir);

}



void ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
@@ -426,12 +451,6 @@ void ceph_fs_debugfs_init(struct ceph_fs_client *fsc) 
						fsc,

						&mdsc_fops);



	fsc->debugfs_metric = debugfs_create_file("metrics",

						  0400,

						  fsc->client->debugfs_dir,

						  fsc,

						  &metric_fops);



	fsc->debugfs_caps = debugfs_create_file("caps",

						0400,

						fsc->client->debugfs_dir,
@@ -443,6 +462,18 @@ void ceph_fs_debugfs_init(struct ceph_fs_client *fsc) 
						  fsc->client->debugfs_dir,

						  fsc,

						  &status_fops);



	fsc->debugfs_metrics_dir = debugfs_create_dir("metrics",

						      fsc->client->debugfs_dir);



	debugfs_create_file("file", 0400, fsc->debugfs_metrics_dir, fsc,

			    &metrics_file_fops);

	debugfs_create_file("latency", 0400, fsc->debugfs_metrics_dir, fsc,

			    &metrics_latency_fops);

	debugfs_create_file("size", 0400, fsc->debugfs_metrics_dir, fsc,

			    &metrics_size_fops);

	debugfs_create_file("caps", 0400, fsc->debugfs_metrics_dir, fsc,

			    &metrics_caps_fops);

}

fs/ceph/super.h

+1 −1
Original line number Diff line number Diff line
@@ -129,9 +129,9 @@ struct ceph_fs_client { 
	struct dentry *debugfs_congestion_kb;

	struct dentry *debugfs_bdi;

	struct dentry *debugfs_mdsc, *debugfs_mdsmap;

	struct dentry *debugfs_metric;

	struct dentry *debugfs_status;

	struct dentry *debugfs_mds_sessions;

	struct dentry *debugfs_metrics_dir;

#endif



#ifdef CONFIG_CEPH_FSCACHE