Add Go GC metrics to admin endpoint default

Add Go `runtime/metrics` path `/gc/` to the default included metrics. This will add several new metrics and about 80 additional series per process: * `go_gc_cycles_automatic_gc_cycles_total` * `go_gc_cycles_forced_gc_cycles_total` * `go_gc_cycles_total_gc_cycles_total` * `go_gc_heap_allocs_by_size_bytes_bucket` * `go_gc_heap_allocs_by_size_bytes_count` * `go_gc_heap_allocs_by_size_bytes_sum` * `go_gc_heap_allocs_bytes_total` * `go_gc_heap_allocs_objects_total` * `go_gc_heap_frees_by_size_bytes_bucket` * `go_gc_heap_frees_by_size_bytes_count` * `go_gc_heap_frees_by_size_bytes_sum` * `go_gc_heap_frees_bytes_total` * `go_gc_heap_frees_objects_total` * `go_gc_heap_goal_bytes` * `go_gc_heap_objects_objects` * `go_gc_heap_tiny_allocs_objects_total` * `go_gc_limiter_last_enabled_gc_cycle` * `go_gc_pauses_seconds_bucket` * `go_gc_pauses_seconds_count` * `go_gc_pauses_seconds_sum` * `go_gc_stack_starting_size_bytes` Signed-off-by: SuperQ <[email protected]>
reddit · Mar 12, 2024 · 6e3f72c · 6e3f72c
1 parent 00f31e5
commit 6e3f72c
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diff --git a/internal/admin/server.go b/internal/admin/server.go
@@ -26,6 +26,7 @@ const (
 var Mux = http.NewServeMux()
 
 var baseplateGoCollectors = collectors.WithGoCollectorRuntimeMetrics(
+	collectors.MetricsGC,
 	collectors.MetricsScheduler,
 )
 

diff --git a/internal/admin/server_test.go b/internal/admin/server_test.go
@@ -8,7 +8,29 @@ import (
 )
 
 var expectedMetrics = []string{
+	"go_gc_cycles_automatic_gc_cycles_total",
+	"go_gc_cycles_forced_gc_cycles_total",
+	"go_gc_cycles_total_gc_cycles_total",
 	"go_gc_duration_seconds",
+	"go_gc_gogc_percent",
+	"go_gc_gomemlimit_bytes",
+	"go_gc_heap_allocs_by_size_bytes",
+	"go_gc_heap_allocs_bytes_total",
+	"go_gc_heap_allocs_objects_total",
+	"go_gc_heap_frees_by_size_bytes",
+	"go_gc_heap_frees_bytes_total",
+	"go_gc_heap_frees_objects_total",
+	"go_gc_heap_goal_bytes",
+	"go_gc_heap_live_bytes",
+	"go_gc_heap_objects_objects",
+	"go_gc_heap_tiny_allocs_objects_total",
+	"go_gc_limiter_last_enabled_gc_cycle",
+	"go_gc_pauses_seconds",
+	"go_gc_scan_globals_bytes",
+	"go_gc_scan_heap_bytes",
+	"go_gc_scan_stack_bytes",
+	"go_gc_scan_total_bytes",
+	"go_gc_stack_starting_size_bytes",
 	"go_goroutines",
 	"go_info",
 	"go_memstats_alloc_bytes",