diff --git a/include/ircd/prof.h b/include/ircd/prof.h
index fae0cfab4..c5c313e03 100644
--- a/include/ircd/prof.h
+++ b/include/ircd/prof.h
@@ -22,7 +22,7 @@ namespace ircd::prof
 	enum counter :uint8_t;
 	enum cacheop :uint8_t;
 	using group = std::vector<std::unique_ptr<event>>;
-
+	IRCD_OVERLOAD(sample)
 	IRCD_EXCEPTION(ircd::error, error)
 
 	uint64_t cycles();      ///< Monotonic reference cycles (since system boot)
@@ -34,7 +34,6 @@ namespace ircd::prof
 
 	// Observe
 	system &hotsample(system &) noexcept;
-	system &sample(system &) noexcept;
 	system &operator+=(system &a, const system &b);
 	system &operator-=(system &a, const system &b);
 	system operator+(const system &a, const system &b);
@@ -65,7 +64,6 @@ struct ircd::prof::times
 	uint64_t kern {0};
 	uint64_t user {0};
 
-	IRCD_OVERLOAD(sample)
 	times(sample_t);
 	times() = default;
 };
@@ -87,6 +85,7 @@ struct ircd::prof::system
 	// 5: SWITCH_TASK,
 	// 6: SWITCH_CPU,
 
+	system(sample_t) noexcept;
 	system()
 	:array_type{{0}}
 	{}
diff --git a/ircd/prof.cc b/ircd/prof.cc
index 7edb3344e..4849f8eb9 100644
--- a/ircd/prof.cc
+++ b/ircd/prof.cc
@@ -220,16 +220,6 @@ ircd::prof::operator+=(system &a,
 	return a;
 }
 
-ircd::prof::system &
-ircd::prof::sample(system &s)
-noexcept
-{
-	stop(system::group);
-	hotsample(s);
-	start(system::group);
-	return s;
-}
-
 ircd::prof::system &
 ircd::prof::hotsample(system &s)
 noexcept
@@ -299,6 +289,14 @@ ircd::prof::for_each(const const_buffer &buf,
 				return closure(type(**it), body[i].val);
 }
 
+ircd::prof::system::system(sample_t)
+noexcept
+{
+	stop(group);
+	hotsample(*this);
+	start(group);
+}
+
 //
 // event
 //