--- ruby-3.2.0/process.c	2021-09-16 13:10:16.001908642 -0700
+++ ruby-3.2.0/process.c	2021-09-16 14:21:00.080586664 -0700
@@ -324,9 +324,6 @@
 static ID id_TIMES_BASED_CLOCK_MONOTONIC;
 static ID id_TIMES_BASED_CLOCK_PROCESS_CPUTIME_ID;
 #endif
-#ifdef RUSAGE_SELF
-static ID id_GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID;
-#endif
 static ID id_CLOCK_BASED_CLOCK_PROCESS_CPUTIME_ID;
 #ifdef __APPLE__
 static ID id_MACH_ABSOLUTE_TIME_BASED_CLOCK_MONOTONIC;
@@ -7878,16 +7875,6 @@
 rb_proc_times(VALUE obj)
 {
     VALUE utime, stime, cutime, cstime, ret;
-#if defined(RUSAGE_SELF) && defined(RUSAGE_CHILDREN)
-    struct rusage usage_s, usage_c;
-
-    if (getrusage(RUSAGE_SELF, &usage_s) != 0 || getrusage(RUSAGE_CHILDREN, &usage_c) != 0)
-	rb_sys_fail("getrusage");
-    utime = DBL2NUM((double)usage_s.ru_utime.tv_sec + (double)usage_s.ru_utime.tv_usec/1e6);
-    stime = DBL2NUM((double)usage_s.ru_stime.tv_sec + (double)usage_s.ru_stime.tv_usec/1e6);
-    cutime = DBL2NUM((double)usage_c.ru_utime.tv_sec + (double)usage_c.ru_utime.tv_usec/1e6);
-    cstime = DBL2NUM((double)usage_c.ru_stime.tv_sec + (double)usage_c.ru_stime.tv_usec/1e6);
-#else
     const double hertz = (double)get_clk_tck();
     struct tms buf;
 
@@ -7896,7 +7883,6 @@
     stime = DBL2NUM(buf.tms_stime / hertz);
     cutime = DBL2NUM(buf.tms_cutime / hertz);
     cstime = DBL2NUM(buf.tms_cstime / hertz);
-#endif
     ret = rb_struct_new(rb_cProcessTms, utime, stime, cutime, cstime);
     RB_GC_GUARD(utime);
     RB_GC_GUARD(stime);
@@ -8312,26 +8298,6 @@
         }
 #endif
 
-#ifdef RUSAGE_SELF
-#define RUBY_GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID \
-        ID2SYM(id_GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID)
-        if (clk_id == RUBY_GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID) {
-            struct rusage usage;
-            int32_t usec;
-            ret = getrusage(RUSAGE_SELF, &usage);
-            if (ret != 0)
-                rb_sys_fail("getrusage");
-            tt.giga_count = usage.ru_utime.tv_sec + usage.ru_stime.tv_sec;
-            usec = (int32_t)(usage.ru_utime.tv_usec + usage.ru_stime.tv_usec);
-            if (1000000 <= usec) {
-                tt.giga_count++;
-                usec -= 1000000;
-            }
-            tt.count = usec * 1000;
-            denominators[num_denominators++] = 1000000000;
-            goto success;
-        }
-#endif
 
 #ifdef HAVE_TIMES
 #define RUBY_TIMES_BASED_CLOCK_PROCESS_CPUTIME_ID \
@@ -9082,9 +9048,6 @@
     id_TIMES_BASED_CLOCK_MONOTONIC = rb_intern_const("TIMES_BASED_CLOCK_MONOTONIC");
     id_TIMES_BASED_CLOCK_PROCESS_CPUTIME_ID = rb_intern_const("TIMES_BASED_CLOCK_PROCESS_CPUTIME_ID");
 #endif
-#ifdef RUSAGE_SELF
-    id_GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID = rb_intern_const("GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID");
-#endif
     id_CLOCK_BASED_CLOCK_PROCESS_CPUTIME_ID = rb_intern_const("CLOCK_BASED_CLOCK_PROCESS_CPUTIME_ID");
 #ifdef __APPLE__
     id_MACH_ABSOLUTE_TIME_BASED_CLOCK_MONOTONIC = rb_intern_const("MACH_ABSOLUTE_TIME_BASED_CLOCK_MONOTONIC");
--- ruby-3.2.0/gc.c	2021-09-16 13:10:15.953909370 -0700
+++ ruby-3.2.0/gc.c	2021-09-16 14:21:52.135786845 -0700
@@ -11530,17 +11530,6 @@
     }
 #endif
 
-#ifdef RUSAGE_SELF
-    {
-        struct rusage usage;
-        struct timeval time;
-        if (getrusage(RUSAGE_SELF, &usage) == 0) {
-            time = usage.ru_utime;
-            return time.tv_sec + time.tv_usec * 1e-6;
-        }
-    }
-#endif
-
 #ifdef _WIN32
     {
 	FILETIME creation_time, exit_time, kernel_time, user_time;
@@ -11600,18 +11589,6 @@
 #if MALLOC_ALLOCATED_SIZE
 	record->allocated_size = malloc_allocated_size;
 #endif
-#if GC_PROFILE_MORE_DETAIL && GC_PROFILE_DETAIL_MEMORY
-#ifdef RUSAGE_SELF
-	{
-	    struct rusage usage;
-	    if (getrusage(RUSAGE_SELF, &usage) == 0) {
-		record->maxrss = usage.ru_maxrss;
-		record->minflt = usage.ru_minflt;
-		record->majflt = usage.ru_majflt;
-	    }
-	}
-#endif
-#endif
     }
 }