refactor: admissions control flags

runtime/Makefile

@@ -78,7 +78,7 @@ BINARY_NAME=sledgert
 # This flag dumps totals of incoming requests and outgoing responses, broken out by status code
 # family, such as 2XX, 4XX, 5XX. It is useful to debug clients hanging waiting for a response.
 # To log, run `call http_total_log()` while in GDB
-CFLAGS += -DHTTP_TOTAL_COUNTERS
+# CFLAGS += -DHTTP_TOTAL_COUNTERS
 
 # This flag tracks the total number of sandboxes in the various states
 # It is useful to debug if sandboxes are "getting caught" in a particular state

runtime/include/admissions_control.h

@@ -3,10 +3,11 @@
 #include <stdbool.h>
 #include <stdint.h>
 
+#ifdef ADMISSIONS_CONTROL
 #define ADMISSIONS_CONTROL_GRANULARITY 1000000
-
 extern _Atomic uint64_t admissions_control_admitted;
 extern uint64_t         admissions_control_capacity;
+#endif
 
 void     admissions_control_initialize(void);
 void     admissions_control_add(uint64_t admissions_estimate);

runtime/src/admissions_control.c

@@ -18,10 +18,12 @@
  * These estimates are incremented on request acceptance and decremented on request completion (either
  * success or failure)
  */
+
+#ifdef ADMISSIONS_CONTROL
 _Atomic uint64_t admissions_control_admitted;
 uint64_t         admissions_control_capacity;
-
+const double     admissions_control_overhead = 0.2;
-const double admissions_control_overhead = 0.2;
+#endif
 
 void
 admissions_control_initialize()
@@ -93,10 +95,12 @@ admissions_control_calculate_estimate_us(uint32_t estimated_execution_us, uint32
 void
 admissions_control_log_decision(uint64_t admissions_estimate, bool admitted)
 {
+#ifdef ADMISSIONS_CONTROL
 #ifdef LOG_ADMISSIONS_CONTROL
 	debuglog("Admitted: %lu, Capacity: %lu, Estimate: %lu, Admitted? %s\n", admissions_control_admitted,
 	         admissions_control_capacity, admissions_estimate, admitted ? "yes" : "no");
 #endif /* LOG_ADMISSIONS_CONTROL */
+#endif /* ADMISSIONS_CONTROL */
 }
 
 uint64_t