| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | //go:build linux |
| 4 | |
| 5 | package dmcache |
| 6 | |
| 7 | import ( |
| 8 | "fmt" |
| 9 | "strings" |
| 10 | |
| 11 | "github.com/netdata/netdata/go/plugins/plugin/framework/collectorapi" |
| 12 | ) |
| 13 | |
| 14 | const ( |
| 15 | prioDeviceCacheSpaceUsage = collectorapi.Priority + iota |
| 16 | prioDeviceMetaSpaceUsage |
| 17 | prioDeviceReadEfficiency |
| 18 | prioDeviceWriteEfficiency |
| 19 | prioDeviceActivity |
| 20 | prioDeviceDirty |
| 21 | ) |
| 22 | |
| 23 | var deviceChartsTmpl = collectorapi.Charts{ |
| 24 | chartDeviceCacheSpaceUsageTmpl.Copy(), |
| 25 | chartDeviceMetadataSpaceUsageTmpl.Copy(), |
| 26 | |
| 27 | chartDeviceReadEfficiencyTmpl.Copy(), |
| 28 | chartDeviceWriteEfficiencyTmpl.Copy(), |
| 29 | |
| 30 | chartDeviceActivityTmpl.Copy(), |
| 31 | |
| 32 | chartDeviceDirtySizeTmpl.Copy(), |
| 33 | } |
| 34 | |
| 35 | var ( |
| 36 | chartDeviceCacheSpaceUsageTmpl = collectorapi.Chart{ |
| 37 | ID: "dmcache_device_%s_cache_space_usage", |
| 38 | Title: "DMCache space usage", |
| 39 | Units: "bytes", |
| 40 | Fam: "space usage", |
| 41 | Ctx: "dmcache.device_cache_space_usage", |
| 42 | Type: collectorapi.Stacked, |
| 43 | Priority: prioDeviceCacheSpaceUsage, |
| 44 | Dims: collectorapi.Dims{ |
| 45 | {ID: "dmcache_device_%s_cache_free_bytes", Name: "free"}, |
| 46 | {ID: "dmcache_device_%s_cache_used_bytes", Name: "used"}, |
| 47 | }, |
| 48 | } |
| 49 | chartDeviceMetadataSpaceUsageTmpl = collectorapi.Chart{ |
| 50 | ID: "dmcache_device_%s_metadata_space_usage", |
| 51 | Title: "DMCache metadata space usage", |
| 52 | Units: "bytes", |
| 53 | Fam: "space usage", |
| 54 | Ctx: "dmcache.device_metadata_space_usage", |
| 55 | Type: collectorapi.Stacked, |
| 56 | Priority: prioDeviceMetaSpaceUsage, |
| 57 | Dims: collectorapi.Dims{ |
| 58 | {ID: "dmcache_device_%s_metadata_free_bytes", Name: "free"}, |
| 59 | {ID: "dmcache_device_%s_metadata_used_bytes", Name: "used"}, |
| 60 | }, |
| 61 | } |
| 62 | ) |
| 63 | |
| 64 | var ( |
| 65 | chartDeviceReadEfficiencyTmpl = collectorapi.Chart{ |
| 66 | ID: "dmcache_device_%s_read_efficiency", |
| 67 | Title: "DMCache read efficiency", |
| 68 | Units: "requests/s", |
| 69 | Fam: "efficiency", |
| 70 | Ctx: "dmcache.device_cache_read_efficiency", |
| 71 | Type: collectorapi.Stacked, |
| 72 | Priority: prioDeviceReadEfficiency, |
| 73 | Dims: collectorapi.Dims{ |
| 74 | {ID: "dmcache_device_%s_read_hits", Name: "hits", Algo: collectorapi.Incremental}, |
| 75 | {ID: "dmcache_device_%s_read_misses", Name: "misses", Algo: collectorapi.Incremental}, |
| 76 | }, |
| 77 | } |
| 78 | chartDeviceWriteEfficiencyTmpl = collectorapi.Chart{ |
| 79 | ID: "dmcache_device_%s_write_efficiency", |
| 80 | Title: "DMCache write efficiency", |
| 81 | Units: "requests/s", |
| 82 | Fam: "efficiency", |
| 83 | Ctx: "dmcache.device_cache_write_efficiency", |
| 84 | Type: collectorapi.Stacked, |
| 85 | Priority: prioDeviceWriteEfficiency, |
| 86 | Dims: collectorapi.Dims{ |
| 87 | {ID: "dmcache_device_%s_write_hits", Name: "hits", Algo: collectorapi.Incremental}, |
| 88 | {ID: "dmcache_device_%s_write_misses", Name: "misses", Algo: collectorapi.Incremental}, |
| 89 | }, |
| 90 | } |
| 91 | ) |
| 92 | |
| 93 | var chartDeviceActivityTmpl = collectorapi.Chart{ |
| 94 | ID: "dmcache_device_%s_activity", |
| 95 | Title: "DMCache activity", |
| 96 | Units: "bytes/s", |
| 97 | Fam: "activity", |
| 98 | Ctx: "dmcache.device_cache_activity", |
| 99 | Type: collectorapi.Area, |
| 100 | Priority: prioDeviceActivity, |
| 101 | Dims: collectorapi.Dims{ |
| 102 | {ID: "dmcache_device_%s_promotions_bytes", Name: "promotions", Algo: collectorapi.Incremental}, |
| 103 | {ID: "dmcache_device_%s_demotions_bytes", Name: "demotions", Mul: -1, Algo: collectorapi.Incremental}, |
| 104 | }, |
| 105 | } |
| 106 | |
| 107 | var chartDeviceDirtySizeTmpl = collectorapi.Chart{ |
| 108 | ID: "dmcache_device_%s_dirty_size", |
| 109 | Title: "DMCache dirty data size", |
| 110 | Units: "bytes", |
| 111 | Fam: "dirty size", |
| 112 | Ctx: "dmcache.device_cache_dirty_size", |
| 113 | Type: collectorapi.Area, |
| 114 | Priority: prioDeviceDirty, |
| 115 | Dims: collectorapi.Dims{ |
| 116 | {ID: "dmcache_device_%s_dirty_bytes", Name: "dirty"}, |
| 117 | }, |
| 118 | } |
| 119 | |
| 120 | func (c *Collector) addDeviceCharts(device string) { |
| 121 | charts := deviceChartsTmpl.Copy() |
| 122 | |
| 123 | for _, chart := range *charts { |
| 124 | chart.ID = fmt.Sprintf(chart.ID, cleanDeviceName(device)) |
| 125 | chart.Labels = []collectorapi.Label{ |
| 126 | {Key: "device", Value: device}, |
| 127 | } |
| 128 | for _, dim := range chart.Dims { |
| 129 | dim.ID = fmt.Sprintf(dim.ID, device) |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | if err := c.Charts().Add(*charts...); err != nil { |
| 134 | c.Warning(err) |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | func (c *Collector) removeDeviceCharts(device string) { |
| 139 | px := fmt.Sprintf("dmcache_device_%s_", cleanDeviceName(device)) |
| 140 | |
| 141 | for _, chart := range *c.Charts() { |
| 142 | if strings.HasPrefix(chart.ID, px) { |
| 143 | chart.MarkRemove() |
| 144 | chart.MarkNotCreated() |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | func cleanDeviceName(device string) string { |
| 150 | return strings.ReplaceAll(device, ".", "_") |
| 151 | } |