Remove measure_allocs feature from main crate

Author: spacejam

CHANGELOG.md

@@ -23,6 +23,7 @@
 
 ## Breaking Changes
 
+* The "measure_allocs" feature has been removed.
 * #1135 The "no_metrics" anti-feature has been replaced with
   the "metrics" positive feature.
 * #1178 the `Event` enum has become a unified struct that allows

Cargo.toml

@@ -39,7 +39,6 @@ event_log = []
 metrics = ["num-format"]
 no_logs = ["log/max_level_off"]
 no_inline = []
-measure_allocs = []
 pretty_backtrace = ["color-backtrace"]
 io_uring = ["rio"]
 docs = []

src/lib.rs

@@ -243,14 +243,6 @@ mod flusher;
 /// The event log helps debug concurrency issues.
 pub mod event_log;
 
-#[cfg(feature = "measure_allocs")]
-mod measure_allocs;
-
-#[cfg(feature = "measure_allocs")]
-#[global_allocator]
-static ALLOCATOR: measure_allocs::TrackingAllocator =
-    measure_allocs::TrackingAllocator;
-
 /// Opens a `Db` with a default configuration at the
 /// specified path. This will create a new storage
 /// directory at the specified path if it does

src/measure_allocs.rs

@@ -145,10 +145,6 @@ pub struct Metrics {
     pub tree_traverse: Histogram,
     pub write_to_log: Histogram,
     pub written_bytes: Histogram,
-    #[cfg(feature = "measure_allocs")]
-    pub allocations: CachePadded<AtomicUsize>,
-    #[cfg(feature = "measure_allocs")]
-    pub allocated_bytes: CachePadded<AtomicUsize>,
 }
 
 impl Metrics {
@@ -437,27 +433,6 @@ impl Metrics {
             sz("seg util end", &self.segment_utilization_shutdown),
         ]));
 
-        #[cfg(feature = "measure_allocs")]
-        {
-            ret.push_str(&format!(
-                "{}\n",
-                std::iter::repeat("-").take(134).collect::<String>()
-            ));
-            ret.push_str("allocation statistics:\n");
-            ret.push_str(&format!(
-                "total allocations: {}\n",
-                measure_allocs::ALLOCATIONS
-                    .load(Acquire)
-                    .to_formatted_string(&Locale::en)
-            ));
-            ret.push_str(&format!(
-                "allocated bytes: {}\n",
-                measure_allocs::ALLOCATED_BYTES
-                    .load(Acquire)
-                    .to_formatted_string(&Locale::en)
-            ));
-        }
-
         ret
     }
 }