haversine_02/compile

@@ -4,12 +4,6 @@ CC=clang
 CXX=clang++
 CFLAGS="-Wall -Wextra -I$(realpath ./include) "
 
-ASM=nasm
-ASM_FLAGS="-f elf64 "
-
-AR=ar
-AR_FLAGS="rcs"
-
 # PARSE ARGUMENTS
 # From this StackOverflow answer https://stackoverflow.com/a/14203146
 while [[ $# > 0 ]];do
@@ -36,7 +30,7 @@ done
 
 # BUILD TYPE
 if [[ $RELEASE == true ]]; then
-	CFLAGS+="-g -O1"
+	CFLAGS+="-O3"
 else
 	CFLAGS+="-g"
 fi
@@ -77,18 +71,6 @@ MEMTESTOUT=memtest
 (set -x ; $CC $CFLAGS $MEMTESTSRC -o $MEMTESTOUT)
 echo
 
-# REPTEST ASSEMBLY
-ASM_BUILD_DIR=reptest_build
-ASM_SRC="./src/repetition_testing/reptest_functions.asm"
-ASM_OBJ="./$ASM_BUILD_DIR/funcs.o"
-ASM_LIB="./$ASM_BUILD_DIR/libfuncs.a"
-
-mkdir $ASM_BUILD_DIR
-
-(set -x ; $ASM $ASM_FLAGS $ASM_SRC -o $ASM_OBJ)
-(set -x ; $AR $AR_FLAGS $ASM_LIB $ASM_OBJ)
-echo
-
 if [[ $BASIC_PROFILING == true ]] || [[ $FULL_PROFILING == true ]]; then
 	if [[ $FULL_PROFILING == true ]]; then
 		JSONFLAGS+="-DFULL_PROFILING"
@@ -113,7 +95,7 @@ if [[ $BASIC_PROFILING == true ]] || [[ $FULL_PROFILING == true ]]; then
 	cd ../
 
 	# REPETITION TESTING
-	REPTESTSRC="./src/repetition_testing/*.cpp ./$PROF_BUILD_DIR/*.o $ASM_LIB"
+	REPTESTSRC="./src/repetition_testing/*.cpp ./$PROF_BUILD_DIR/*.o"
 	REPTESTOUT=reptest
 
 	(set -x ; $CXX $CFLAGS $REPTESTFLAGS $REPTESTSRC -o $REPTESTOUT)
@@ -132,4 +114,4 @@ cd ../
 echo
 
 # CLEAR BUILD FILES
-rm -rvf $JSON_BUILD_DIR $PROF_BUILD_DIR $ASM_BUILD_DIR
+rm -rvf $JSON_BUILD_DIR $PROF_BUILD_DIR

haversine_02/src/repetition_testing/main.cpp

@@ -9,18 +9,9 @@
 
 #define ARR_LEN(ARR) sizeof(ARR) / sizeof(*ARR)
 
-extern "C" void mov_all_bytes_asm(char *buffer, u64 size);
-extern "C" void nop_all_bytes_asm(u64 size);
-extern "C" void inc_all_bytes_asm(u64 size);
-extern "C" void dec_all_bytes_asm(u64 size);
-
 void test_fread(reptester *tester, alloc_type type);
 void test_read(reptester *tester, alloc_type type);
 void test_write(reptester *tester, alloc_type type);
-void test_write_mov_all_bytes_asm(reptester *tester, alloc_type type);
-void test_write_nop_all_bytes_asm(reptester *tester, alloc_type type);
-void test_write_inc_all_bytes_asm(reptester *tester, alloc_type type);
-void test_write_dec_all_bytes_asm(reptester *tester, alloc_type type);
 u64 get_file_length(FILE *fp);
 
 int main(int argc, char *argv[]) {
@@ -74,16 +65,8 @@ int main(int argc, char *argv[]) {
 
   func_data funcs[] = {
       {{"WRITE", "WRITE WITH MALLOC"}, test_write},
-      {{"WRITE MOV ASM", "WRITE MOV ASM WITH MALLOC"},
+      {{"READ", "READ WITH MALLOC"}, test_read},
-       test_write_mov_all_bytes_asm},
+      {{"FREAD", "FREAD WITH MALLOC"}, test_fread},
-      {{"WRITE NOP ASM", "WRITE NOP ASM WITH MALLOC"},
-       test_write_nop_all_bytes_asm},
-      {{"WRITE INC ASM", "WRITE INC ASM WITH MALLOC"},
-       test_write_inc_all_bytes_asm},
-      {{"WRITE DEC ASM", "WRITE DEC ASM WITH MALLOC"},
-       test_write_dec_all_bytes_asm},
-      // {{"READ", "READ WITH MALLOC"}, test_read},
-      // {{"FREAD", "FREAD WITH MALLOC"}, test_fread},
   };
 
   tester.params.read_size = get_file_length(fp);
@@ -172,12 +155,6 @@ void test_read(reptester *tester, alloc_type type) {
   fclose(fp);
 }
 
-void write_to_all_bytes(char *buffer, u64 size) {
-  for (u64 i = 0; i < size; ++i) {
-    buffer[i] = i;
-  }
-}
-
 void test_write(reptester *tester, alloc_type type) {
   u64 start = read_cpu_timer();
   u64 fault_count_start = page_fault_count();
@@ -186,108 +163,10 @@ void test_write(reptester *tester, alloc_type type) {
 
   u64 total_size = tester->params.read_size * tester->params.read_count;
 
-  write_to_all_bytes(tester->params.buffer, total_size);
+  for (u64 i = 0; i < total_size; ++i) {
-
+    tester->params.buffer[i] = '0';
-  u64 fault_count_end = page_fault_count();
-  u64 end = read_cpu_timer();
-
-  u64 read_time = end - start;
-  u64 page_faults = fault_count_end - fault_count_start;
-
-  tester->results = {
-      total_size,
-      read_time,
-      page_faults,
-  };
-
-  handle_free(tester, type);
   }
 
-void test_write_mov_all_bytes_asm(reptester *tester, alloc_type type) {
-  u64 start = read_cpu_timer();
-  u64 fault_count_start = page_fault_count();
-
-  handle_alloc(tester, type);
-
-  u64 total_size = tester->params.read_size * tester->params.read_count;
-
-  mov_all_bytes_asm(tester->params.buffer, total_size);
-
-  u64 fault_count_end = page_fault_count();
-  u64 end = read_cpu_timer();
-
-  u64 read_time = end - start;
-  u64 page_faults = fault_count_end - fault_count_start;
-
-  tester->results = {
-      total_size,
-      read_time,
-      page_faults,
-  };
-
-  handle_free(tester, type);
-}
-
-void test_write_nop_all_bytes_asm(reptester *tester, alloc_type type) {
-  u64 start = read_cpu_timer();
-  u64 fault_count_start = page_fault_count();
-
-  handle_alloc(tester, type);
-
-  u64 total_size = tester->params.read_size * tester->params.read_count;
-
-  nop_all_bytes_asm(total_size);
-
-  u64 fault_count_end = page_fault_count();
-  u64 end = read_cpu_timer();
-
-  u64 read_time = end - start;
-  u64 page_faults = fault_count_end - fault_count_start;
-
-  tester->results = {
-      total_size,
-      read_time,
-      page_faults,
-  };
-
-  handle_free(tester, type);
-}
-
-void test_write_inc_all_bytes_asm(reptester *tester, alloc_type type) {
-  u64 start = read_cpu_timer();
-  u64 fault_count_start = page_fault_count();
-
-  handle_alloc(tester, type);
-
-  u64 total_size = tester->params.read_size * tester->params.read_count;
-
-  inc_all_bytes_asm(total_size);
-
-  u64 fault_count_end = page_fault_count();
-  u64 end = read_cpu_timer();
-
-  u64 read_time = end - start;
-  u64 page_faults = fault_count_end - fault_count_start;
-
-  tester->results = {
-      total_size,
-      read_time,
-      page_faults,
-  };
-
-  handle_free(tester, type);
-}
-
-void test_write_dec_all_bytes_asm(reptester *tester, alloc_type type) {
-  u64 start = read_cpu_timer();
-  u64 fault_count_start = page_fault_count();
-
-  handle_alloc(tester, type);
-
-  u64 total_size = tester->params.read_size * tester->params.read_count;
-
-  dec_all_bytes_asm(total_size);
-
   u64 fault_count_end = page_fault_count();
   u64 end = read_cpu_timer();
 

haversine_02/src/repetition_testing/reptest_functions.asm

@@ -1,43 +0,0 @@
-global mov_all_bytes_asm
-global nop_all_bytes_asm
-global inc_all_bytes_asm
-global dec_all_bytes_asm
-
-mov_all_bytes_asm:
-	xor rax, rax
-
-	.loop:
-		mov BYTE [rdi + rax * 1], al
-		inc rax
-		cmp rsi, rax
-		jne .loop
-
-	ret
-
-nop_all_bytes_asm:
-	xor rax, rax
-
-	.loop:
-		db 0x0f, 0x1f, 0x00
-		inc rax
-		cmp rdi, rax
-		jne .loop
-
-	ret
-
-inc_all_bytes_asm:
-	xor rax, rax
-
-	.loop:
-		inc rax
-		cmp rdi, rax
-		jne .loop
-
-	ret
-
-dec_all_bytes_asm:
-	.loop:
-		dec rdi
-		jnz .loop
-
-	ret