| 34 | } |
| 35 | |
| 36 | func newCacheMetrics(registerer prometheus.Registerer) cacheMetrics { |
| 37 | subsystem := "file_cache" |
| 38 | f := promauto.With(registerer) |
| 39 | |
| 40 | return cacheMetrics{ |
| 41 | currentCacheSize: f.NewGauge(prometheus.GaugeOpts{ |
| 42 | Namespace: "coderd", |
| 43 | Subsystem: subsystem, |
| 44 | Name: "open_files_size_bytes_current", |
| 45 | Help: "The current amount of memory of all files currently open in the file cache.", |
| 46 | }), |
| 47 | |
| 48 | totalCacheSize: f.NewCounter(prometheus.CounterOpts{ |
| 49 | Namespace: "coderd", |
| 50 | Subsystem: subsystem, |
| 51 | Name: "open_files_size_bytes_total", |
| 52 | Help: "The total amount of memory ever opened in the file cache. This number never decrements.", |
| 53 | }), |
| 54 | |
| 55 | currentOpenFiles: f.NewGauge(prometheus.GaugeOpts{ |
| 56 | Namespace: "coderd", |
| 57 | Subsystem: subsystem, |
| 58 | Name: "open_files_current", |
| 59 | Help: "The count of unique files currently open in the file cache.", |
| 60 | }), |
| 61 | |
| 62 | totalOpenedFiles: f.NewCounter(prometheus.CounterOpts{ |
| 63 | Namespace: "coderd", |
| 64 | Subsystem: subsystem, |
| 65 | Name: "open_files_total", |
| 66 | Help: "The total count of unique files ever opened in the file cache.", |
| 67 | }), |
| 68 | |
| 69 | currentOpenFileReferences: f.NewGauge(prometheus.GaugeOpts{ |
| 70 | Namespace: "coderd", |
| 71 | Subsystem: subsystem, |
| 72 | Name: "open_file_refs_current", |
| 73 | Help: "The count of file references currently open in the file cache. Multiple references can be held for the same file.", |
| 74 | }), |
| 75 | |
| 76 | totalOpenFileReferences: f.NewCounterVec(prometheus.CounterOpts{ |
| 77 | Namespace: "coderd", |
| 78 | Subsystem: subsystem, |
| 79 | Name: "open_file_refs_total", |
| 80 | Help: "The total number of file references ever opened in the file cache. The 'hit' label indicates if the file was loaded from the cache.", |
| 81 | }, []string{"hit"}), |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | // Cache persists the files for template versions, and is used by dynamic |
| 86 | // parameters to deduplicate the files in memory. When any number of users opens |