Crank the warmup up to 16384

Include/internal/pycore_backoff.h

@@ -116,14 +116,13 @@ initial_jump_backoff_counter(void)
  * Must be larger than ADAPTIVE_COOLDOWN_VALUE,
  * otherwise when a side exit warms up we may construct
  * a new trace before the Tier 1 code has properly re-specialized. */
-#define SIDE_EXIT_INITIAL_VALUE 4095
-#define SIDE_EXIT_INITIAL_BACKOFF 12
+#define SIDE_EXIT_INITIAL_VALUE 16383
+#define SIDE_EXIT_INITIAL_BACKOFF 14
 
 static inline _Py_BackoffCounter
 initial_temperature_backoff_counter(void)
 {
-    return make_backoff_counter(SIDE_EXIT_INITIAL_VALUE,
-                                SIDE_EXIT_INITIAL_BACKOFF);
+    return forge_backoff_counter(SIDE_EXIT_INITIAL_VALUE);
 }
 
 /* Unreachable backoff counter. */

Python/bytecodes.c

@@ -4850,9 +4850,8 @@ dummy_func(
                 Py_CLEAR(exit->executor);
             }
             if (exit->executor == NULL) {
-                _Py_BackoffCounter temperature = exit->temperature;
-                if (!backoff_counter_triggers(temperature)) {
-                    exit->temperature = advance_backoff_counter(temperature);
+                if (exit->temperature.value_and_backoff) {
+                    exit->temperature.value_and_backoff--;
                     tstate->previous_executor = (PyObject *)current_executor;
                     GOTO_TIER_ONE(target);
                 }
@@ -4865,7 +4864,7 @@ dummy_func(
                     int chain_depth = current_executor->vm_data.chain_depth + 1;
                     int optimized = _PyOptimizer_Optimize(frame, target, stack_pointer, &executor, chain_depth);
                     if (optimized <= 0) {
-                        exit->temperature = restart_backoff_counter(temperature);
+                        exit->temperature = initial_temperature_backoff_counter();
                         if (optimized < 0) {
                             GOTO_UNWIND();
                         }
@@ -4965,13 +4964,13 @@ dummy_func(
                 Py_INCREF(executor);
             }
             else {
-                if (!backoff_counter_triggers(exit->temperature)) {
-                    exit->temperature = advance_backoff_counter(exit->temperature);
+                if (exit->temperature.value_and_backoff) {
+                    exit->temperature.value_and_backoff--;
                     GOTO_TIER_ONE(target);
                 }
                 int optimized = _PyOptimizer_Optimize(frame, target, stack_pointer, &executor, 0);
                 if (optimized <= 0) {
-                    exit->temperature = restart_backoff_counter(exit->temperature);
+                    exit->temperature = initial_temperature_backoff_counter();
                     if (optimized < 0) {
                         GOTO_UNWIND();
                     }