Code alignment testing
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12f25cfe51
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063183e46c
@ -15,6 +15,14 @@ extern "C" void nop_1x3_all_bytes_asm(u64 size);
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extern "C" void nop_1x9_all_bytes_asm(u64 size);
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extern "C" void inc_all_bytes_asm(u64 size);
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extern "C" void dec_all_bytes_asm(u64 size);
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extern "C" void align64_loop(u64 size);
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extern "C" void align1_loop(u64 size);
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extern "C" void align15_loop(u64 size);
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extern "C" void align31_loop(u64 size);
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extern "C" void align63_loop(u64 size);
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extern "C" void align75_loop(u64 size);
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extern "C" void align90_loop(u64 size);
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extern "C" void align112_loop(u64 size);
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void test_fread(reptester *tester, alloc_type type);
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void test_read(reptester *tester, alloc_type type);
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@ -25,6 +33,14 @@ void test_write_nop_1x3_all_bytes_asm(reptester *tester, alloc_type type);
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void test_write_nop_1x9_all_bytes_asm(reptester *tester, alloc_type type);
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void test_write_inc_all_bytes_asm(reptester *tester, alloc_type type);
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void test_write_dec_all_bytes_asm(reptester *tester, alloc_type type);
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void test_align64_loop(reptester *tester, alloc_type type);
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void test_align1_loop(reptester *tester, alloc_type type);
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void test_align15_loop(reptester *tester, alloc_type type);
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void test_align31_loop(reptester *tester, alloc_type type);
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void test_align63_loop(reptester *tester, alloc_type type);
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void test_align75_loop(reptester *tester, alloc_type type);
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void test_align90_loop(reptester *tester, alloc_type type);
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void test_align112_loop(reptester *tester, alloc_type type);
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u64 get_file_length(FILE *fp);
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int main(int argc, char *argv[]) {
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@ -80,18 +96,26 @@ int main(int argc, char *argv[]) {
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// {{"WRITE", "WRITE WITH MALLOC"}, test_write},
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// {{"WRITE MOV ASM", "WRITE MOV ASM WITH MALLOC"},
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// test_write_mov_all_bytes_asm},
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{{"WRITE NOP ASM", "WRITE NOP ASM WITH MALLOC"},
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test_write_nop_all_bytes_asm},
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{{"WRITE NOP 1x3 ASM", "WRITE NOP 1x3 ASM WITH MALLOC"},
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test_write_nop_1x3_all_bytes_asm},
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{{"WRITE NOP 1x9 ASM", "WRITE NOP 1x9 ASM WITH MALLOC"},
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test_write_nop_1x9_all_bytes_asm},
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// {{"WRITE NOP ASM", "WRITE NOP ASM WITH MALLOC"},
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// test_write_nop_all_bytes_asm},
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// {{"WRITE NOP 1x3 ASM", "WRITE NOP 1x3 ASM WITH MALLOC"},
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// test_write_nop_1x3_all_bytes_asm},
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// {{"WRITE NOP 1x9 ASM", "WRITE NOP 1x9 ASM WITH MALLOC"},
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// test_write_nop_1x9_all_bytes_asm},
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// {{"WRITE INC ASM", "WRITE INC ASM WITH MALLOC"},
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// test_write_inc_all_bytes_asm},
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// {{"WRITE DEC ASM", "WRITE DEC ASM WITH MALLOC"},
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// test_write_dec_all_bytes_asm},
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// {{"READ", "READ WITH MALLOC"}, test_read},
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// {{"FREAD", "FREAD WITH MALLOC"}, test_fread},
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{{"ALIGN 64", "ALIGN 64 WITH MALLOC"}, test_align64_loop},
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{{"ALIGN 1", "ALIGN 1 WITH MALLOC"}, test_align1_loop},
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{{"ALIGN 15", "ALIGN 15 WITH MALLOC"}, test_align15_loop},
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{{"ALIGN 31", "ALIGN 31 WITH MALLOC"}, test_align31_loop},
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{{"ALIGN 63", "ALIGN 63 WITH MALLOC"}, test_align63_loop},
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{{"ALIGN 75", "ALIGN 75 WITH MALLOC"}, test_align75_loop},
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{{"ALIGN 90", "ALIGN 90 WITH MALLOC"}, test_align90_loop},
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{{"ALIGN 112", "ALIGN 112 WITH MALLOC"}, test_align112_loop},
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};
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tester.params.read_size = get_file_length(fp);
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@ -361,6 +385,208 @@ void test_write_dec_all_bytes_asm(reptester *tester, alloc_type type) {
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handle_free(tester, type);
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}
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void test_align64_loop(reptester *tester, alloc_type type) {
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u64 start = read_cpu_timer();
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u64 fault_count_start = page_fault_count();
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handle_alloc(tester, type);
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u64 total_size = tester->params.read_size * tester->params.read_count;
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align64_loop(total_size);
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u64 fault_count_end = page_fault_count();
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u64 end = read_cpu_timer();
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u64 read_time = end - start;
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u64 page_faults = fault_count_end - fault_count_start;
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tester->results = {
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total_size,
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read_time,
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page_faults,
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};
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handle_free(tester, type);
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}
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void test_align1_loop(reptester *tester, alloc_type type) {
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u64 start = read_cpu_timer();
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u64 fault_count_start = page_fault_count();
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handle_alloc(tester, type);
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u64 total_size = tester->params.read_size * tester->params.read_count;
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align1_loop(total_size);
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u64 fault_count_end = page_fault_count();
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u64 end = read_cpu_timer();
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u64 read_time = end - start;
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u64 page_faults = fault_count_end - fault_count_start;
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tester->results = {
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total_size,
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read_time,
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page_faults,
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};
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handle_free(tester, type);
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}
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void test_align15_loop(reptester *tester, alloc_type type) {
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u64 start = read_cpu_timer();
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u64 fault_count_start = page_fault_count();
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handle_alloc(tester, type);
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u64 total_size = tester->params.read_size * tester->params.read_count;
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align15_loop(total_size);
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u64 fault_count_end = page_fault_count();
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u64 end = read_cpu_timer();
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u64 read_time = end - start;
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u64 page_faults = fault_count_end - fault_count_start;
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tester->results = {
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total_size,
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read_time,
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page_faults,
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};
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handle_free(tester, type);
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}
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void test_align31_loop(reptester *tester, alloc_type type) {
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u64 start = read_cpu_timer();
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u64 fault_count_start = page_fault_count();
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handle_alloc(tester, type);
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u64 total_size = tester->params.read_size * tester->params.read_count;
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align31_loop(total_size);
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u64 fault_count_end = page_fault_count();
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u64 end = read_cpu_timer();
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u64 read_time = end - start;
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u64 page_faults = fault_count_end - fault_count_start;
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tester->results = {
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total_size,
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read_time,
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page_faults,
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};
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handle_free(tester, type);
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}
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void test_align63_loop(reptester *tester, alloc_type type) {
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u64 start = read_cpu_timer();
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u64 fault_count_start = page_fault_count();
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handle_alloc(tester, type);
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u64 total_size = tester->params.read_size * tester->params.read_count;
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align63_loop(total_size);
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u64 fault_count_end = page_fault_count();
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u64 end = read_cpu_timer();
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u64 read_time = end - start;
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u64 page_faults = fault_count_end - fault_count_start;
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tester->results = {
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total_size,
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read_time,
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page_faults,
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};
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handle_free(tester, type);
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}
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void test_align75_loop(reptester *tester, alloc_type type) {
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u64 start = read_cpu_timer();
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u64 fault_count_start = page_fault_count();
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handle_alloc(tester, type);
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u64 total_size = tester->params.read_size * tester->params.read_count;
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align75_loop(total_size);
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u64 fault_count_end = page_fault_count();
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u64 end = read_cpu_timer();
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u64 read_time = end - start;
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u64 page_faults = fault_count_end - fault_count_start;
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tester->results = {
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total_size,
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read_time,
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page_faults,
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};
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handle_free(tester, type);
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}
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void test_align90_loop(reptester *tester, alloc_type type) {
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u64 start = read_cpu_timer();
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u64 fault_count_start = page_fault_count();
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handle_alloc(tester, type);
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u64 total_size = tester->params.read_size * tester->params.read_count;
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align90_loop(total_size);
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u64 fault_count_end = page_fault_count();
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u64 end = read_cpu_timer();
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u64 read_time = end - start;
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u64 page_faults = fault_count_end - fault_count_start;
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tester->results = {
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total_size,
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read_time,
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page_faults,
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};
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handle_free(tester, type);
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}
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void test_align112_loop(reptester *tester, alloc_type type) {
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u64 start = read_cpu_timer();
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u64 fault_count_start = page_fault_count();
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handle_alloc(tester, type);
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u64 total_size = tester->params.read_size * tester->params.read_count;
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align112_loop(total_size);
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u64 fault_count_end = page_fault_count();
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u64 end = read_cpu_timer();
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u64 read_time = end - start;
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u64 page_faults = fault_count_end - fault_count_start;
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tester->results = {
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total_size,
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read_time,
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page_faults,
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};
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handle_free(tester, type);
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}
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u64 get_file_length(FILE *fp) {
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if (!fp) {
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return 0;
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@ -4,6 +4,14 @@ global nop_1x3_all_bytes_asm
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global nop_1x9_all_bytes_asm
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global inc_all_bytes_asm
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global dec_all_bytes_asm
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global align64_loop
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global align1_loop
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global align15_loop
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global align31_loop
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global align63_loop
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global align75_loop
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global align90_loop
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global align112_loop
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mov_all_bytes_asm:
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xor rax, rax
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@ -75,3 +83,110 @@ dec_all_bytes_asm:
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jnz .loop
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ret
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align64_loop:
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xor rax, rax
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align 64
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.loop:
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inc rax
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cmp rdi, rax
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jne .loop
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ret
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align1_loop:
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xor rax, rax
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align 64
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nop
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.loop:
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inc rax
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cmp rdi, rax
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jne .loop
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ret
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align15_loop:
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xor rax, rax
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align 64
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%rep 15
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nop
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%endrep
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.loop:
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inc rax
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cmp rdi, rax
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jne .loop
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ret
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align31_loop:
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xor rax, rax
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align 64
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%rep 31
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nop
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%endrep
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.loop:
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inc rax
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cmp rdi, rax
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jne .loop
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ret
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align63_loop:
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xor rax, rax
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align 64
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%rep 63
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nop
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%endrep
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.loop:
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inc rax
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cmp rdi, rax
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jne .loop
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ret
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align75_loop:
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xor rax, rax
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align 64
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%rep 75
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nop
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%endrep
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.loop:
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inc rax
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cmp rdi, rax
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jne .loop
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ret
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align90_loop:
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xor rax, rax
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align 64
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%rep 90
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nop
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%endrep
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.loop:
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inc rax
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cmp rdi, rax
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jne .loop
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ret
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align112_loop:
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xor rax, rax
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align 64
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%rep 112
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nop
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%endrep
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.loop:
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inc rax
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cmp rdi, rax
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jne .loop
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ret
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