Add bcache collector (#597)

* Add bcache collector for Linux

This collector gathers metrics related to the Linux block cache
(bcache) from sysfs.

* Removed commented out code

* Use project comment style

* Add _sectors to metric name to indicate unit

* Really use project comment style

* Rename bcache.go to bcache_linux.go

* Keep collector namespace clean

Rename:
- metric -> bcacheMetric
- periodStatsToMetrics -> bcachePeriodStatsToMetric

* Shorten slice initialization

* Change label names to backing_device, cache_device

* Remove five minute metrics (keep only total)

* Include units in additional metric names

* Enable bcache collector by default

* Provide metrics in seconds, not nanoseconds

* remove metrics with label "all"

* Add fixtures, update end-to-end for bcache collector

* Move fixtures/sys into tar.gz

This changeset moves the collector/fixtures/sys directory into
collector/fixtures/sys.tar.gz and tweaks the Makefile to unpack the
tarball before tests are run.

The reason for this change is that Windows does not allow colons in a
path (colons are present in some of the bcache fixture files), nor can
it (out of the box) deal with pathnames longer than 260 characters
(which we would be increasingly likely to hit if we tried to replace
colons with longer codes that are guaranteed not the turn up in regular
file names).

* Add ttar: plain text archive, replacement for tar

This changeset adds ttar, a plain text replacement for tar, and uses it
for the sysfs fixture archive. The syntax is loosely based on tar(1).

Using a plain text archive makes it possible to review changes without
downloading and extracting the archive. Also, when working on the repo,
git diff and git log become useful again, allowing a committer to verify
and track changes over time.

The code is written in bash, because bash is available out of the box on
all major flavors of Linux and on macOS. The feature set used is
restricted to bash version 3.2 because that is what Apple is still
shipping.

The programm also works on Windows if bash is installed. Obviously, it
does not solve the Windows limitations (path length limited to 260
characters, no symbolic links) that prompted the move to an archive
format in the first place.

Makefile

@@ -41,11 +41,15 @@ style:
 	@echo ">> checking code style"
 	@! gofmt -d $(shell find . -path ./vendor -prune -o -name '*.go' -print) | grep '^'
 
-test:
+test: collector/fixtures/sys/.unpacked
 	@echo ">> running tests"
 	@$(GO) test -short $(pkgs)
 
-test-e2e: build
+collector/fixtures/sys/.unpacked: collector/fixtures/sys.ttar
+	./ttar -C collector/fixtures -x -f collector/fixtures/sys.ttar
+	touch $@
+
+test-e2e: build collector/fixtures/sys/.unpacked
 	@echo ">> running end-to-end tests"
 	./end-to-end-test.sh
 

README.md

@@ -22,6 +22,7 @@ Which collectors are used is controlled by the `--collectors.enabled` flag.
 Name     | Description | OS
 ---------|-------------|----
 arp | Exposes ARP statistics from `/proc/net/arp`. | Linux
+bcache | Exposes bcache statistics from `/sys/fs/bcache/`. | Linux
 conntrack | Shows conntrack statistics (does nothing if no `/proc/sys/net/netfilter/` present). | Linux
 cpu | Exposes CPU statistics | Darwin, Dragonfly, FreeBSD, Linux
 diskstats | Exposes disk I/O statistics. | Darwin, Linux

collector/bcache_linux.go

@@ -0,0 +1,304 @@
+// Copyright 2017 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !nobcache
+
+package collector
+
+import (
+	"fmt"
+
+	// https://godoc.org/github.com/prometheus/client_golang/prometheus
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/procfs/bcache"
+	"github.com/prometheus/procfs/sysfs"
+)
+
+func init() {
+	Factories["bcache"] = NewBcacheCollector
+}
+
+// A bcacheCollector is a Collector which gathers metrics from Linux bcache.
+type bcacheCollector struct {
+	fs sysfs.FS
+}
+
+// NewBcacheCollector returns a newly allocated bcacheCollector.
+// It exposes a number of Linux bcache statistics.
+func NewBcacheCollector() (Collector, error) {
+	fs, err := sysfs.NewFS(*sysPath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open sysfs: %v", err)
+	}
+
+	return &bcacheCollector{
+		fs: fs,
+	}, nil
+}
+
+// Update reads and exposes bcache stats.
+// It implements the Collector interface.
+func (c *bcacheCollector) Update(ch chan<- prometheus.Metric) error {
+	stats, err := c.fs.BcacheStats()
+	if err != nil {
+		return fmt.Errorf("failed to retrieve bcache stats: %v", err)
+	}
+
+	for _, s := range stats {
+		c.updateBcacheStats(ch, s)
+	}
+	return nil
+}
+
+type bcacheMetric struct {
+	name            string
+	desc            string
+	value           float64
+	metricType      prometheus.ValueType
+	extraLabel      []string
+	extraLabelValue string
+}
+
+func bcachePeriodStatsToMetric(ps *bcache.PeriodStats, labelValue string) []bcacheMetric {
+	label := []string{"backing_device"}
+
+	metrics := []bcacheMetric{
+		{
+			name:            "bypassed_bytes_total",
+			desc:            "Amount of IO (both reads and writes) that has bypassed the cache.",
+			value:           float64(ps.Bypassed),
+			metricType:      prometheus.CounterValue,
+			extraLabel:      label,
+			extraLabelValue: labelValue,
+		},
+		{
+			name:            "cache_hits_total",
+			desc:            "Hits counted per individual IO as bcache sees them.",
+			value:           float64(ps.CacheHits),
+			metricType:      prometheus.CounterValue,
+			extraLabel:      label,
+			extraLabelValue: labelValue,
+		},
+		{
+			name:            "cache_misses_total",
+			desc:            "Misses counted per individual IO as bcache sees them.",
+			value:           float64(ps.CacheMisses),
+			metricType:      prometheus.CounterValue,
+			extraLabel:      label,
+			extraLabelValue: labelValue,
+		},
+		{
+			name:            "cache_bypass_hits_total",
+			desc:            "Hits for IO intended to skip the cache.",
+			value:           float64(ps.CacheBypassHits),
+			metricType:      prometheus.CounterValue,
+			extraLabel:      label,
+			extraLabelValue: labelValue,
+		},
+		{
+			name:            "cache_bypass_misses_total",
+			desc:            "Misses for IO intended to skip the cache.",
+			value:           float64(ps.CacheBypassMisses),
+			metricType:      prometheus.CounterValue,
+			extraLabel:      label,
+			extraLabelValue: labelValue,
+		},
+		{
+			name:            "cache_miss_collisions_total",
+			desc:            "Instances where data insertion from cache miss raced with write (data already present).",
+			value:           float64(ps.CacheMissCollisions),
+			metricType:      prometheus.CounterValue,
+			extraLabel:      label,
+			extraLabelValue: labelValue,
+		},
+		{
+			name:            "cache_readaheads_total",
+			desc:            "Count of times readahead occurred.",
+			value:           float64(ps.CacheReadaheads),
+			metricType:      prometheus.CounterValue,
+			extraLabel:      label,
+			extraLabelValue: labelValue,
+		},
+	}
+	return metrics
+}
+
+// UpdateBcacheStats collects statistics for one bcache ID.
+func (c *bcacheCollector) updateBcacheStats(ch chan<- prometheus.Metric, s *bcache.Stats) {
+
+	const (
+		subsystem = "bcache"
+	)
+
+	var (
+		devLabel   = []string{"uuid"}
+		allMetrics []bcacheMetric
+		metrics    []bcacheMetric
+	)
+
+	allMetrics = []bcacheMetric{
+		// metrics in /sys/fs/bcache/<uuid>/
+		{
+			name:       "average_key_size_sectors",
+			desc:       "Average data per key in the btree (sectors).",
+			value:      float64(s.Bcache.AverageKeySize),
+			metricType: prometheus.GaugeValue,
+		},
+		{
+			name:       "btree_cache_size_bytes",
+			desc:       "Amount of memory currently used by the btree cache.",
+			value:      float64(s.Bcache.BtreeCacheSize),
+			metricType: prometheus.GaugeValue,
+		},
+		{
+			name:       "cache_available_percent",
+			desc:       "Percentage of cache device without dirty data, useable for writeback (may contain clean cached data).",
+			value:      float64(s.Bcache.CacheAvailablePercent),
+			metricType: prometheus.GaugeValue,
+		},
+		{
+			name:       "congested",
+			desc:       "Congestion.",
+			value:      float64(s.Bcache.Congested),
+			metricType: prometheus.GaugeValue,
+		},
+		{
+			name:       "root_usage_percent",
+			desc:       "Percentage of the root btree node in use (tree depth increases if too high).",
+			value:      float64(s.Bcache.RootUsagePercent),
+			metricType: prometheus.GaugeValue,
+		},
+		{
+			name:       "tree_depth",
+			desc:       "Depth of the btree.",
+			value:      float64(s.Bcache.TreeDepth),
+			metricType: prometheus.GaugeValue,
+		},
+		// metrics in /sys/fs/bcache/<uuid>/internal/
+		{
+			name:       "active_journal_entries",
+			desc:       "Number of journal entries that are newer than the index.",
+			value:      float64(s.Bcache.Internal.ActiveJournalEntries),
+			metricType: prometheus.GaugeValue,
+		},
+		{
+			name:       "btree_nodes",
+			desc:       "Total nodes in the btree.",
+			value:      float64(s.Bcache.Internal.BtreeNodes),
+			metricType: prometheus.GaugeValue,
+		},
+		{
+			name:       "btree_read_average_duration_seconds",
+			desc:       "Average btree read duration.",
+			value:      float64(s.Bcache.Internal.BtreeReadAverageDurationNanoSeconds) * 1e-9,
+			metricType: prometheus.GaugeValue,
+		},
+		{
+			name:       "cache_read_races",
+			desc:       "Counts instances where while data was being read from the cache, the bucket was reused and invalidated - i.e. where the pointer was stale after the read completed.",
+			value:      float64(s.Bcache.Internal.CacheReadRaces),
+			metricType: prometheus.CounterValue,
+		},
+	}
+
+	for _, bdev := range s.Bdevs {
+		// metrics in /sys/fs/bcache/<uuid>/<bdev>/
+		metrics = []bcacheMetric{
+			{
+				name:            "dirty_data_bytes",
+				desc:            "Amount of dirty data for this backing device in the cache.",
+				value:           float64(bdev.DirtyData),
+				metricType:      prometheus.GaugeValue,
+				extraLabel:      []string{"backing_device"},
+				extraLabelValue: bdev.Name,
+			},
+		}
+		allMetrics = append(allMetrics, metrics...)
+
+		// metrics in /sys/fs/bcache/<uuid>/<bdev>/stats_total
+		metrics := bcachePeriodStatsToMetric(&bdev.Total, bdev.Name)
+		allMetrics = append(allMetrics, metrics...)
+
+	}
+
+	for _, cache := range s.Caches {
+		metrics = []bcacheMetric{
+			// metrics in /sys/fs/bcache/<uuid>/<cache>/
+			{
+				name:            "io_errors",
+				desc:            "Number of errors that have occurred, decayed by io_error_halflife.",
+				value:           float64(cache.IOErrors),
+				metricType:      prometheus.GaugeValue,
+				extraLabel:      []string{"cache_device"},
+				extraLabelValue: cache.Name,
+			},
+			{
+				name:            "metadata_written_bytes_total",
+				desc:            "Sum of all non data writes (btree writes and all other metadata).",
+				value:           float64(cache.MetadataWritten),
+				metricType:      prometheus.CounterValue,
+				extraLabel:      []string{"cache_device"},
+				extraLabelValue: cache.Name,
+			},
+			{
+				name:            "written_bytes_total",
+				desc:            "Sum of all data that has been written to the cache.",
+				value:           float64(cache.Written),
+				metricType:      prometheus.CounterValue,
+				extraLabel:      []string{"cache_device"},
+				extraLabelValue: cache.Name,
+			},
+			// metrics in /sys/fs/bcache/<uuid>/<cache>/priority_stats
+			{
+				name:            "priority_stats_unused_percent",
+				desc:            "The percentage of the cache that doesn't contain any data.",
+				value:           float64(cache.Priority.UnusedPercent),
+				metricType:      prometheus.GaugeValue,
+				extraLabel:      []string{"cache_device"},
+				extraLabelValue: cache.Name,
+			},
+			{
+				name:            "priority_stats_metadata_percent",
+				desc:            "Bcache's metadata overhead.",
+				value:           float64(cache.Priority.MetadataPercent),
+				metricType:      prometheus.GaugeValue,
+				extraLabel:      []string{"cache_device"},
+				extraLabelValue: cache.Name,
+			},
+		}
+		allMetrics = append(allMetrics, metrics...)
+	}
+
+	for _, m := range allMetrics {
+		labels := append(devLabel, m.extraLabel...)
+
+		desc := prometheus.NewDesc(
+			prometheus.BuildFQName(Namespace, subsystem, m.name),
+			m.desc,
+			labels,
+			nil,
+		)
+
+		labelValues := []string{s.Name}
+		if m.extraLabelValue != "" {
+			labelValues = append(labelValues, m.extraLabelValue)
+		}
+
+		ch <- prometheus.MustNewConstMetric(
+			desc,
+			m.metricType,
+			m.value,
+			labelValues...,
+		)
+	}
+}

collector/fixtures/e2e-output.txt

@@ -75,6 +75,75 @@ http_response_size_bytes_count{handler="prometheus"} 0
 # TYPE node_arp_entries gauge
 node_arp_entries{device="eth0"} 3
 node_arp_entries{device="eth1"} 3
+# HELP node_bcache_active_journal_entries Number of journal entries that are newer than the index.
+# TYPE node_bcache_active_journal_entries gauge
+node_bcache_active_journal_entries{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 1
+# HELP node_bcache_average_key_size_sectors Average data per key in the btree (sectors).
+# TYPE node_bcache_average_key_size_sectors gauge
+node_bcache_average_key_size_sectors{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_btree_cache_size_bytes Amount of memory currently used by the btree cache.
+# TYPE node_bcache_btree_cache_size_bytes gauge
+node_bcache_btree_cache_size_bytes{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_btree_nodes Total nodes in the btree.
+# TYPE node_bcache_btree_nodes gauge
+node_bcache_btree_nodes{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_btree_read_average_duration_seconds Average btree read duration.
+# TYPE node_bcache_btree_read_average_duration_seconds gauge
+node_bcache_btree_read_average_duration_seconds{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 1.305e-06
+# HELP node_bcache_bypassed_bytes_total Amount of IO (both reads and writes) that has bypassed the cache.
+# TYPE node_bcache_bypassed_bytes_total counter
+node_bcache_bypassed_bytes_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_cache_available_percent Percentage of cache device without dirty data, useable for writeback (may contain clean cached data).
+# TYPE node_bcache_cache_available_percent gauge
+node_bcache_cache_available_percent{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 100
+# HELP node_bcache_cache_bypass_hits_total Hits for IO intended to skip the cache.
+# TYPE node_bcache_cache_bypass_hits_total counter
+node_bcache_cache_bypass_hits_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_cache_bypass_misses_total Misses for IO intended to skip the cache.
+# TYPE node_bcache_cache_bypass_misses_total counter
+node_bcache_cache_bypass_misses_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_cache_hits_total Hits counted per individual IO as bcache sees them.
+# TYPE node_bcache_cache_hits_total counter
+node_bcache_cache_hits_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 546
+# HELP node_bcache_cache_miss_collisions_total Instances where data insertion from cache miss raced with write (data already present).
+# TYPE node_bcache_cache_miss_collisions_total counter
+node_bcache_cache_miss_collisions_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_cache_misses_total Misses counted per individual IO as bcache sees them.
+# TYPE node_bcache_cache_misses_total counter
+node_bcache_cache_misses_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_cache_read_races Counts instances where while data was being read from the cache, the bucket was reused and invalidated - i.e. where the pointer was stale after the read completed.
+# TYPE node_bcache_cache_read_races counter
+node_bcache_cache_read_races{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_cache_readaheads_total Count of times readahead occurred.
+# TYPE node_bcache_cache_readaheads_total counter
+node_bcache_cache_readaheads_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_congested Congestion.
+# TYPE node_bcache_congested gauge
+node_bcache_congested{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_dirty_data_bytes Amount of dirty data for this backing device in the cache.
+# TYPE node_bcache_dirty_data_bytes gauge
+node_bcache_dirty_data_bytes{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_io_errors Number of errors that have occurred, decayed by io_error_halflife.
+# TYPE node_bcache_io_errors gauge
+node_bcache_io_errors{cache_device="cache0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_metadata_written_bytes_total Sum of all non data writes (btree writes and all other metadata).
+# TYPE node_bcache_metadata_written_bytes_total counter
+node_bcache_metadata_written_bytes_total{cache_device="cache0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 512
+# HELP node_bcache_priority_stats_metadata_percent Bcache's metadata overhead.
+# TYPE node_bcache_priority_stats_metadata_percent gauge
+node_bcache_priority_stats_metadata_percent{cache_device="cache0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_priority_stats_unused_percent The percentage of the cache that doesn't contain any data.
+# TYPE node_bcache_priority_stats_unused_percent gauge
+node_bcache_priority_stats_unused_percent{cache_device="cache0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 99
+# HELP node_bcache_root_usage_percent Percentage of the root btree node in use (tree depth increases if too high).
+# TYPE node_bcache_root_usage_percent gauge
+node_bcache_root_usage_percent{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_tree_depth Depth of the btree.
+# TYPE node_bcache_tree_depth gauge
+node_bcache_tree_depth{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
+# HELP node_bcache_written_bytes_total Sum of all data that has been written to the cache.
+# TYPE node_bcache_written_bytes_total counter
+node_bcache_written_bytes_total{cache_device="cache0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0
 # HELP node_bonding_active Number of active slaves per bonding interface.
 # TYPE node_bonding_active gauge
 node_bonding_active{master="bond0"} 0
@@ -2164,6 +2233,7 @@ node_qdisc_requeues_total{device="wlan0",kind="fq"} 1
 # HELP node_scrape_collector_success node_exporter: Whether a collector succeeded.
 # TYPE node_scrape_collector_success gauge
 node_scrape_collector_success{collector="arp"} 1
+node_scrape_collector_success{collector="bcache"} 1
 node_scrape_collector_success{collector="bonding"} 1
 node_scrape_collector_success{collector="buddyinfo"} 1
 node_scrape_collector_success{collector="conntrack"} 1

collector/fixtures/sys/bus/cpu/devices/cpu0/cpufreq/scaling_cur_freq

@@ -1 +0,0 @@
-1699981

collector/fixtures/sys/bus/cpu/devices/cpu0/cpufreq/scaling_max_freq

@@ -1 +0,0 @@
-3700000

collector/fixtures/sys/bus/cpu/devices/cpu0/cpufreq/scaling_min_freq

@@ -1 +0,0 @@
-800000

collector/fixtures/sys/bus/cpu/devices/cpu0/thermal_throttle/core_throttle_count

@@ -1 +0,0 @@
-5

collector/fixtures/sys/bus/cpu/devices/cpu0/thermal_throttle/package_throttle_count

@@ -1 +0,0 @@
-30

collector/fixtures/sys/bus/cpu/devices/cpu1/cpufreq/scaling_cur_freq

@@ -1 +0,0 @@
-1699981

collector/fixtures/sys/bus/cpu/devices/cpu1/cpufreq/scaling_max_freq

@@ -1 +0,0 @@
-3700000

collector/fixtures/sys/bus/cpu/devices/cpu1/cpufreq/scaling_min_freq

@@ -1 +0,0 @@
-800000

collector/fixtures/sys/bus/cpu/devices/cpu1/thermal_throttle/core_throttle_count

@@ -1 +0,0 @@
-0

collector/fixtures/sys/bus/cpu/devices/cpu1/thermal_throttle/package_throttle_count

@@ -1 +0,0 @@
-30

collector/fixtures/sys/bus/cpu/devices/cpu2/thermal_throttle/core_throttle_count

@@ -1 +0,0 @@
-40

collector/fixtures/sys/bus/cpu/devices/cpu2/thermal_throttle/package_throttle_count

@@ -1 +0,0 @@
-6

collector/fixtures/sys/bus/cpu/devices/cpu3/cpufreq/scaling_cur_freq

@@ -1 +0,0 @@
-8000

collector/fixtures/sys/bus/cpu/devices/cpu3/cpufreq/scaling_max_freq

@@ -1 +0,0 @@
-4200000

collector/fixtures/sys/bus/cpu/devices/cpu3/cpufreq/scaling_min_freq

@@ -1 +0,0 @@
-1000

collector/fixtures/sys/class/hwmon/hwmon0

@@ -1 +0,0 @@
-../../devices/platform/coretemp.0/hwmon/hwmon0

collector/fixtures/sys/class/hwmon/hwmon1

@@ -1 +0,0 @@
-../../devices/platform/coretemp.1/hwmon/hwmon1

collector/fixtures/sys/class/hwmon/hwmon2

@@ -1 +0,0 @@
-../../devices/platform/applesmc.768/hwmon/hwmon2

collector/fixtures/sys/class/hwmon/hwmon3

@@ -1 +0,0 @@
-../../devices/platform/nct6775.656/hwmon/hwmon3

collector/fixtures/sys/class/hwmon/hwmon4/temp1_crit

@@ -1 +0,0 @@
-100000

collector/fixtures/sys/class/hwmon/hwmon4/temp1_crit_alarm

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/hwmon/hwmon4/temp1_input

@@ -1 +0,0 @@
-55000

collector/fixtures/sys/class/hwmon/hwmon4/temp1_label

@@ -1 +0,0 @@
-foosensor

collector/fixtures/sys/class/hwmon/hwmon4/temp1_max

@@ -1 +0,0 @@
-100000

collector/fixtures/sys/class/hwmon/hwmon4/temp2_crit

@@ -1 +0,0 @@
-100000

collector/fixtures/sys/class/hwmon/hwmon4/temp2_crit_alarm

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/hwmon/hwmon4/temp2_input

@@ -1 +0,0 @@
-54000

collector/fixtures/sys/class/hwmon/hwmon4/temp2_label

@@ -1 +0,0 @@
-foosensor

collector/fixtures/sys/class/hwmon/hwmon4/temp2_max

@@ -1 +0,0 @@
-100000

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters/link_downed

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters/link_error_recovery

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters/multicast_rcv_packets

@@ -1 +0,0 @@
-93

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters/multicast_xmit_packets

@@ -1 +0,0 @@
-16

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters/port_rcv_data

@@ -1 +0,0 @@
-4631917

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters/port_xmit_data

@@ -1 +0,0 @@
-3733440

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters/unicast_rcv_packets

@@ -1 +0,0 @@
-61148

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters/unicast_xmit_packets

@@ -1 +0,0 @@
-61239

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters_ext/port_multicast_rcv_packets

@@ -1 +0,0 @@
-93

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters_ext/port_multicast_xmit_packets

@@ -1 +0,0 @@
-16

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters_ext/port_rcv_data_64

@@ -1 +0,0 @@
-4631917

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters_ext/port_rcv_packets_64

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters_ext/port_unicast_rcv_packets

@@ -1 +0,0 @@
-61148

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters_ext/port_unicast_xmit_packets

@@ -1 +0,0 @@
-61239

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters_ext/port_xmit_data_64

@@ -1 +0,0 @@
-3733440

collector/fixtures/sys/class/infiniband/mlx4_0/ports/1/counters_ext/port_xmit_packets_64

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters/link_downed

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters/link_error_recovery

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters/multicast_rcv_packets

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters/multicast_xmit_packets

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters/port_rcv_data

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters/port_xmit_data

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters/unicast_rcv_packets

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters/unicast_xmit_packets

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters_ext/port_multicast_rcv_packets

@@ -1 +0,0 @@
-93

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters_ext/port_multicast_xmit_packets

@@ -1 +0,0 @@
-16

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters_ext/port_rcv_data_64

@@ -1 +0,0 @@
-4631917

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters_ext/port_rcv_packets_64

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters_ext/port_unicast_rcv_packets

@@ -1 +0,0 @@
-61148

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters_ext/port_unicast_xmit_packets

@@ -1 +0,0 @@
-61239

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters_ext/port_xmit_data_64

@@ -1 +0,0 @@
-3733440

collector/fixtures/sys/class/infiniband/mlx4_0/ports/2/counters_ext/port_xmit_packets_64

@@ -1 +0,0 @@
-0

collector/fixtures/sys/class/net/bonding_masters

@@ -1 +0,0 @@
-bond0 dmz int

collector/fixtures/sys/class/net/dmz/bonding/slaves

@@ -1 +0,0 @@
-eth0 eth4

collector/fixtures/sys/class/net/dmz/slave_eth0/operstate

@@ -1 +0,0 @@
-up

collector/fixtures/sys/class/net/dmz/slave_eth4/operstate

@@ -1 +0,0 @@
-up

collector/fixtures/sys/class/net/int/bonding/slaves

@@ -1 +0,0 @@
-eth5 eth1

collector/fixtures/sys/class/net/int/slave_eth1/operstate

@@ -1 +0,0 @@
-down

collector/fixtures/sys/class/net/int/slave_eth5/operstate

@@ -1 +0,0 @@
-up

collector/fixtures/sys/devices/platform/applesmc.768/fan1_input

@@ -1 +0,0 @@
-0

collector/fixtures/sys/devices/platform/applesmc.768/fan1_label

@@ -1 +0,0 @@
-Left side  

collector/fixtures/sys/devices/platform/applesmc.768/fan1_manual

@@ -1 +0,0 @@
-0

collector/fixtures/sys/devices/platform/applesmc.768/fan1_max

@@ -1 +0,0 @@
-6156

collector/fixtures/sys/devices/platform/applesmc.768/fan1_min

@@ -1 +0,0 @@
-2160

collector/fixtures/sys/devices/platform/applesmc.768/fan1_output

@@ -1 +0,0 @@
-2160

collector/fixtures/sys/devices/platform/applesmc.768/fan2_input

@@ -1 +0,0 @@
-1998

collector/fixtures/sys/devices/platform/applesmc.768/fan2_label

@@ -1 +0,0 @@
-Right side 

collector/fixtures/sys/devices/platform/applesmc.768/fan2_manual

@@ -1 +0,0 @@
-0

collector/fixtures/sys/devices/platform/applesmc.768/fan2_max

@@ -1 +0,0 @@
-5700

collector/fixtures/sys/devices/platform/applesmc.768/fan2_min

@@ -1 +0,0 @@
-2000

collector/fixtures/sys/devices/platform/applesmc.768/fan2_output

@@ -1 +0,0 @@
-2000

collector/fixtures/sys/devices/platform/applesmc.768/hwmon/hwmon2/device

@@ -1 +0,0 @@
-../../../applesmc.768

collector/fixtures/sys/devices/platform/applesmc.768/name

@@ -1 +0,0 @@
-applesmc

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/device

@@ -1 +0,0 @@
-../../../coretemp.0

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/name

@@ -1 +0,0 @@
-coretemp

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/temp1_crit

@@ -1 +0,0 @@
-100000

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/temp1_crit_alarm

@@ -1 +0,0 @@
-0

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/temp1_input

@@ -1 +0,0 @@
-55000

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/temp1_label

@@ -1 +0,0 @@
-Physical id 0

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/temp1_max

@@ -1 +0,0 @@
-84000

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/temp2_crit

@@ -1 +0,0 @@
-100000

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/temp2_crit_alarm

@@ -1 +0,0 @@
-0

collector/fixtures/sys/devices/platform/coretemp.0/hwmon/hwmon0/temp2_input

@@ -1 +0,0 @@
-54000