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bcache: remove cache_readaheads_totals metrics #2103 (#2583)

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* bcache: remove cache_readaheads_totals metrics #2103

Signed-off-by: Saleh Sal <0xack13@gmail.com>

* Append bcacheReadaheadMetrics when CacheReadaheads value exists

Signed-off-by: Saleh Sal <0xack13@gmail.com>

* Update test cases for cachereadahead greater than zero

Signed-off-by: Saleh Sal <0xack13@gmail.com>

---------

Signed-off-by: Saleh Sal <0xack13@gmail.com>
pull/2696/head
Sal Sal 2 years ago committed by GitHub
parent 287414bc65
commit dcb10ff291
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 25 additions and 20 deletions
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21
collector/bcache_linux.go
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@ -134,14 +134,19 @@ func bcachePeriodStatsToMetric(ps *bcache.PeriodStats, labelValue string) []bcac
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,
},
}
if ps.CacheReadaheads != 0 {
bcacheReadaheadMetrics := []bcacheMetric{
{
name: "cache_readaheads_total",
desc: "Count of times readahead occurred.",
value: float64(ps.CacheReadaheads),
metricType: prometheus.CounterValue,
extraLabel: label,
extraLabelValue: labelValue,
},
}
metrics = append(metrics, bcacheReadaheadMetrics...)
}
return metrics
}

2
collector/fixtures/e2e-64k-page-output.txt
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@ -97,7 +97,7 @@ node_bcache_cache_misses_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-8
node_bcache_cache_read_races_total{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
node_bcache_cache_readaheads_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 13
# HELP node_bcache_congested Congestion.
# TYPE node_bcache_congested gauge
node_bcache_congested{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0

2
collector/fixtures/e2e-output.txt
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@ -97,7 +97,7 @@ node_bcache_cache_misses_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-8
node_bcache_cache_read_races_total{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
node_bcache_cache_readaheads_total{backing_device="bdev0",uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 13
# HELP node_bcache_congested Congestion.
# TYPE node_bcache_congested gauge
node_bcache_congested{uuid="deaddd54-c735-46d5-868e-f331c5fd7c74"} 0

20
collector/fixtures/sys.ttar
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@ -141,7 +141,7 @@ Mode: 400
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/dmi/id/product_version
Lines: 1
<EFBFBD>[<5B>
<EFBFBD>[<5B>
Mode: 444
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/dmi/id/sys_vendor
@ -1440,7 +1440,7 @@ Mode: 444
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/class/power_supply/BAT0/model_name
Lines: 1
LNV-45N1<4E><31>
LNV-45N1<4E><31>
Mode: 444
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/class/power_supply/BAT0/power
@ -2396,7 +2396,7 @@ Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/devices/pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdb/bcache/stats_day/cache_readaheads
Lines: 1
0
13
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/devices/pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdb/bcache/stats_five_minute
@ -2439,7 +2439,7 @@ Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/devices/pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdb/bcache/stats_five_minute/cache_readaheads
Lines: 1
0
13
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/devices/pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdb/bcache/stats_hour
@ -2482,7 +2482,7 @@ Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/devices/pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdb/bcache/stats_hour/cache_readaheads
Lines: 1
0
13
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/devices/pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdb/bcache/stats_total
@ -2525,7 +2525,7 @@ Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/devices/pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdb/bcache/stats_total/cache_readaheads
Lines: 1
0
13
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/devices/pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdb/bcache/writeback_rate_debug
@ -3900,7 +3900,7 @@ Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/fs/bcache/deaddd54-c735-46d5-868e-f331c5fd7c74/stats_day/cache_readaheads
Lines: 1
0
13
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/fs/bcache/deaddd54-c735-46d5-868e-f331c5fd7c74/stats_five_minute
@ -3943,7 +3943,7 @@ Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/fs/bcache/deaddd54-c735-46d5-868e-f331c5fd7c74/stats_five_minute/cache_readaheads
Lines: 1
0
13
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/fs/bcache/deaddd54-c735-46d5-868e-f331c5fd7c74/stats_hour
@ -3986,7 +3986,7 @@ Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/fs/bcache/deaddd54-c735-46d5-868e-f331c5fd7c74/stats_hour/cache_readaheads
Lines: 1
0
13
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Directory: sys/fs/bcache/deaddd54-c735-46d5-868e-f331c5fd7c74/stats_total
@ -4029,7 +4029,7 @@ Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/fs/bcache/deaddd54-c735-46d5-868e-f331c5fd7c74/stats_total/cache_readaheads
Lines: 1
0
13
Mode: 644
# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Path: sys/fs/bcache/deaddd54-c735-46d5-868e-f331c5fd7c74/tree_depth

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