GCCollector: change prefix from `gc_` to `julia_gc_`.

docs/src/index.md

@@ -129,7 +129,7 @@ Prometheus.observe(::Prometheus.Summary, ::Any)
 
 A collector that exports metrics about allocations and garbage collection (for example
 number of allocations, number of bytes allocated, time spent in garbage collection, etc).
-These metrics have the `gc_` prefix in their name.
+These metrics have the `julia_gc_` prefix in their name.
 
 A `GCCollector` is registered automatically with the default registry, see
 [Default registry](@ref) for more details.

src/gc_collector.jl

@@ -33,8 +33,8 @@ GCCollector(; kwargs...)
 
 function metric_names(::GCCollector)
     return (
-        "gc_alloc_total", "gc_free_total", "gc_alloc_bytes_total",
+        "julia_gc_alloc_total", "julia_gc_free_total", "julia_gc_alloc_bytes_total",
-        "gc_live_bytes", "gc_seconds_total", "gc_collections_total",
+        "julia_gc_live_bytes", "julia_gc_seconds_total", "julia_gc_collections_total",
     )
 end
 
@@ -45,7 +45,7 @@ function collect!(metrics::Vector, ::GCCollector)
     # Push all the metrics
     push!(metrics,
         Metric(
-            "counter", "gc_alloc_total", "Total number of allocations (calls to malloc, realloc, etc)",
+            "counter", "julia_gc_alloc_total", "Total number of allocations (calls to malloc, realloc, etc)",
             LabelNames(["type"]),
             [
                 Sample(nothing, LabelValues(["bigalloc"]), gc_num.bigalloc),
@@ -55,23 +55,23 @@ function collect!(metrics::Vector, ::GCCollector)
             ],
         ),
         Metric(
-            "counter", "gc_free_total", "Total number of calls to free()",
+            "counter", "julia_gc_free_total", "Total number of calls to free()",
             nothing, Sample(nothing, nothing, gc_num.freecall),
         ),
         Metric(
-            "counter", "gc_alloc_bytes_total", "Total number of allocated bytes", nothing,
+            "counter", "julia_gc_alloc_bytes_total", "Total number of allocated bytes", nothing,
             Sample(nothing, nothing, Base.gc_total_bytes(gc_num)),
         ),
         Metric(
-            "gauge", "gc_live_bytes", "Current number of live bytes", nothing,
+            "gauge", "julia_gc_live_bytes", "Current number of live bytes", nothing,
             Sample(nothing, nothing, gc_live_bytes),
         ),
         Metric(
-            "counter", "gc_seconds_total", "Total time spent in garbage collection", nothing,
+            "counter", "julia_gc_seconds_total", "Total time spent in garbage collection", nothing,
             Sample(nothing, nothing, gc_num.total_time / 10^9), # [ns] to [s]
         ),
         Metric(
-            "counter", "gc_collections_total", "Total number of calls to garbage collection",
+            "counter", "julia_gc_collections_total", "Total number of calls to garbage collection",
             LabelNames(["type"]),
             [
                 Sample(nothing, LabelValues(["full"]), gc_num.full_sweep),

test/runtests.jl

@@ -290,27 +290,27 @@ end
     x = zeros(1024^2); x = nothing; GC.gc(); GC.gc()
     new_stats = Base.gc_num()
     @test length(metrics) == 6
-    gc_alloc_total = metrics[findfirst(x -> x.metric_name == "gc_alloc_total", metrics)]
+    gc_alloc_total = metrics[findfirst(x -> x.metric_name == "julia_gc_alloc_total", metrics)]
     @test old_stats.bigalloc <= gc_alloc_total.samples[1].value <= new_stats.bigalloc
     @test old_stats.malloc <= gc_alloc_total.samples[2].value <= new_stats.malloc
     @test old_stats.poolalloc <= gc_alloc_total.samples[3].value <= new_stats.poolalloc
     @test old_stats.realloc <= gc_alloc_total.samples[4].value <= new_stats.realloc
-    gc_free_total = metrics[findfirst(x -> x.metric_name == "gc_free_total", metrics)]
+    gc_free_total = metrics[findfirst(x -> x.metric_name == "julia_gc_free_total", metrics)]
     @test old_stats.freecall <= gc_free_total.samples.value <= new_stats.freecall
-    gc_alloc_bytes_total = metrics[findfirst(x -> x.metric_name == "gc_alloc_bytes_total", metrics)]
+    gc_alloc_bytes_total = metrics[findfirst(x -> x.metric_name == "julia_gc_alloc_bytes_total", metrics)]
     @test Base.gc_total_bytes(old_stats) <= gc_alloc_bytes_total.samples.value <= Base.gc_total_bytes(new_stats)
-    gc_seconds_total = metrics[findfirst(x -> x.metric_name == "gc_seconds_total", metrics)]
+    gc_seconds_total = metrics[findfirst(x -> x.metric_name == "julia_gc_seconds_total", metrics)]
     @test old_stats.total_time / 10^9 <= gc_seconds_total.samples.value <= new_stats.total_time / 10^9
     # Prometheus.expose_metric(...)
     str = sprint(Prometheus.expose_metric, gc_alloc_total)
     @test occursin(
         r"""
-        # HELP gc_alloc_total Total number of allocations \(calls to malloc, realloc, etc\)
+        # HELP julia_gc_alloc_total Total number of allocations \(calls to malloc, realloc, etc\)
-        # TYPE gc_alloc_total counter
+        # TYPE julia_gc_alloc_total counter
-        gc_alloc_total{type="bigalloc"} \d+
+        julia_gc_alloc_total{type="bigalloc"} \d+
-        gc_alloc_total{type="malloc"} \d+
+        julia_gc_alloc_total{type="malloc"} \d+
-        gc_alloc_total{type="poolalloc"} \d+
+        julia_gc_alloc_total{type="poolalloc"} \d+
-        gc_alloc_total{type="realloc"} \d+
+        julia_gc_alloc_total{type="realloc"} \d+
         """,
         sprint(Prometheus.expose_metric, gc_alloc_total),
     )