Add testcases for #1141

Refs: #1141 Change-Id: I50d1ac6248e9dfc33c372b825c10cf0bd8b61d3e
2018-07-02 18:40:42 +09:00
parent 1cbe389879
commit ae09d979b6
4 changed files with 284 additions and 0 deletions
--- a/test/issues/1141/1141_lin.c
+++ b/test/issues/1141/1141_lin.c
@ -0,0 +1,88 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include "ihklib.h"
+
+#define Q(x) #x
+#define QUOTE(x) Q(x)
+
+#define _OKNG(verb, cond, fmt, args...) do {			\
+	if (cond) {						\
+		if (verb)					\
+			printf("[OK] " fmt "\n", ##args);	\
+	} else {						\
+		printf("[NG] " fmt "\n", ##args);		\
+		goto out;					\
+	}							\
+} while (0)
+
+#define OKNG(args...) _OKNG(1, ##args)
+#define NG(args...) _OKNG(0, ##args)
+
+#define CVAL(event, mask) \
+	((((event) & 0xf00) << 24) | ((mask) << 8) | ((event) & 0xff))
+
+#define CVAL2(event, mask, inv, count) \
+	((((event) & 0xf00) << 24) | ((mask) << 8) | ((event) & 0xff) | \
+	 ((inv & 1) << 23) | ((count & 0xff) << 24))
+
+/* Intel Nehalem specific */
+struct ihk_perf_event_attr attr[] = {
+	{ .config = CVAL(0xc0, 0x00), .exclude_kernel = 1 }, /* INSTRUCTIONS */
+	{ .config = CVAL(0x3c, 0x00), .exclude_kernel = 1 }, /* CYCLE */
+	{ .config = CVAL(0x43, 0x01), .exclude_kernel = 1 }, /* L1D_REQUEST */
+	{ .config = CVAL(0x51, 0x01), .exclude_kernel = 1 }, /* L1D_MISS */
+	{ .config = CVAL(0x80, 0x03), .exclude_kernel = 1 }, /* L1I_REQUEST */
+	{ .config = CVAL(0x80, 0x02), .exclude_kernel = 1 }, /* L1I_MISS */
+	{ .config = CVAL(0x24, 0xaa), .exclude_kernel = 1 }, /* L2_MISS */
+	{ .config = CVAL(0x2e, 0x41), .exclude_kernel = 1 }, /* LLC_MISS */
+	{ .config = CVAL(0x49, 0x01), .exclude_kernel = 1 }, /* DTLB_MISS */
+	{ .config = CVAL(0x85, 0x01), .exclude_kernel = 1 }, /* ITLB_MISS */
+	{ .config = CVAL2(0x0e, 0x01, 1, 1), .exclude_kernel = 1 }, /* STALL */
+};
+
+int main(int argc, char **argv)
+{
+	int ret;
+	int i, j;
+	int event_num = 0;
+	char *prefix = QUOTE(MCKDIR);
+	char cmd[1024];
+
+	unsigned long counter[4] = {0, 0, 0, 0};
+
+	// INVALID index
+	ret = ihk_os_setperfevent(99, attr, 1);
+	OKNG(ret < 0, "INVALID index ret: %d", ret);
+
+	// event_num 1
+	for (j = 1; j < 5; j++) {
+		printf("*** event_num %d ***************************\n", j);
+		ret = ihk_os_setperfevent(0, attr, j);
+		OKNG(ret == j, "setperfevent ret: %d", ret);
+
+		event_num = ret;
+
+		ret = ihk_os_perfctl(0, PERF_EVENT_ENABLE);
+		OKNG(ret == 0, "ENABLE ret: %d", ret);
+
+		sprintf(cmd, "%s/bin/mcexec ./1141_mck > /dev/null", prefix);
+		ret = system(cmd);
+		OKNG(ret == 0, "system mcexec");
+
+		ret = ihk_os_perfctl(0, PERF_EVENT_DISABLE);
+		OKNG(ret == 0, "DISABLE ret: %d", ret);
+
+		ret = ihk_os_getperfevent(0, counter, event_num);
+		OKNG(ret == 0, "getperfevent ret: %d", ret);
+
+		for (i = 0; i < event_num; i++) {
+			printf("read_value[%d] %ld\n", i, counter[i]);
+		}
+	}
+	ret = 0;
+out:
+	return ret;
+}
--- a/test/issues/1141/1141_mck.c
+++ b/test/issues/1141/1141_mck.c
@ -0,0 +1,143 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <string.h>
+#include <pthread.h>
+#include <errno.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+
+#define NTHR 1
+
+struct thr_arg {
+	unsigned long delay;
+};
+
+struct thr_arg thr_arg[NTHR] = { { .delay = 1000000 } };
+pthread_t thr[NTHR];
+
+#define DIFFNSEC(end, start) ((end.tv_sec - start.tv_sec) * 1000000000UL + \
+		(end.tv_nsec - start.tv_nsec))
+#define TIMER_KIND CLOCK_MONOTONIC_RAW /* CLOCK_THREAD_CPUTIME_ID */
+
+static int print_cpu_last_executed_on(void)
+{
+	int ret = 0;
+	char fn[256];
+	char *result;
+	pid_t tid = syscall(SYS_gettid);
+	int fd;
+	int offset;
+	int amount = 0;
+	char *list;
+	char *token;
+	int i;
+	int cpu;
+
+	sprintf(fn, "/proc/%d/task/%d/stat", getpid(), (int)tid);
+	fd = open(fn, O_RDONLY);
+	if (fd == -1) {
+		printf("open() failed\n");
+		goto fn_fail;
+	}
+
+	result = malloc(65536);
+	if (result == NULL) {
+		printf("malloc() failed");
+		goto fn_fail;
+	}
+
+	offset = 0;
+	while (1) {
+		amount = read(fd, result + offset, 65536);
+		//		printf("amount=%d\n", amount);
+		if (amount == -1) {
+			printf("read() failed");
+			goto fn_fail;
+		}
+		if (amount == 0) {
+			goto eof;
+		}
+		offset += amount;
+	}
+ eof:;
+	//printf("result:%s\n", result);
+
+	list = result;
+	for (i = 0; i < 39; i++) {
+		token = strsep(&list, " ");
+	}
+
+	cpu = sched_getcpu();
+	if (cpu == -1) {
+		printf("getcpu() failed\n");
+		goto fn_fail;
+	}
+
+	printf("[INFO] stat-cpu=%02d,sched_getcpu=%02d,tid=%d\n",
+		token ? atoi(token) : -1, cpu, tid);
+ fn_exit:
+	free(result);
+	return ret;
+ fn_fail:
+	ret = -1;
+	goto fn_exit;
+}
+
+static inline void asm_loop(unsigned long n)
+{
+	int j;
+
+	for (j = 0; j < (n); j++) {
+		asm volatile(
+			     "movq $0, %%rcx\n\t"
+			     "1:\t"
+			     "addq $1, %%rcx\n\t"
+			     "cmpq $99, %%rcx\n\t"
+			     "jle 1b\n\t"
+			     :
+			     :
+			     : "rcx", "cc");
+	}
+}
+
+void *util_thread(void *_arg)
+{
+	struct thr_arg *arg = (struct thr_arg *)_arg;
+
+	print_cpu_last_executed_on();
+	asm_loop(arg->delay);
+	pthread_exit(NULL);
+}
+
+int main(int argc, char **argv)
+{
+	int i;
+	int ret = 0;
+
+	for (i = 0; i < NTHR; i++) {
+
+		if ((ret = pthread_create(&thr[i], NULL,
+			util_thread, &thr_arg[i]))) {
+			fprintf(stderr, "ERROR: pthread_create failed (%d)\n",
+				ret);
+			ret = -EINVAL;
+			goto out;
+		}
+	}
+
+	for (i = 0; i < NTHR; i++) {
+		pthread_join(thr[i], NULL);
+	}
+
+ out:
+	return ret;
+}
+
--- a/test/issues/1141/Makefile
+++ b/test/issues/1141/Makefile
@ -0,0 +1,40 @@
+.SUFFIXES:	# Clear suffixes
+.SUFFIXES:	.c
+
+MCKDIR=$(HOME)/project/os/install
+CC=gcc
+
+CPPFLAGS_LIN=-I$(MCKDIR)/include -DMCKDIR=$(MCKDIR)
+CCFLAGS_LIN=-g -Wall
+LDFLAGS_LIN=-L$(MCKDIR)/lib -lihk -Wl,-rpath -Wl,$(MCKDIR)/lib -lbfd
+SRCS_LIN=$(shell ls *_lin.c)
+EXES_LIN=$(SRCS_LIN:.c=)
+OBJS_LIN=$(SRCS_LIN:.c=.o)
+
+CPPFLAGS_MCK =
+CCFLAGS_MCK=-g -Wall
+LDFLAGS_MCK=-lpthread
+SRCS_MCK=$(shell ls *_mck.c)
+EXES_MCK=$(SRCS_MCK:.c=)
+OBJS_MCK=$(SRCS_MCK:.c=.o)
+
+all: $(EXES_LIN) $(EXES_MCK)
+
+test: $(EXES_LIN) $(EXES_MCK)
+	sudo ./1141_lin
+
+%_lin: %_lin.o
+	$(CC) -o $@ $^ $(LDFLAGS_LIN)
+
+%_lin.o: %_lin.c
+	$(CC) $(CCFLAGS_LIN) $(CPPFLAGS_LIN) -c $<
+
+%_mck: %_mck.o
+	$(CC) -o $@ $^ $(LDFLAGS_MCK)
+
+%_mck.o: %_mck.c
+	$(CC) $(CCFLAGS_MCK) $(CPPFLAGS_MCK) -c $<
+
+clean:
+	rm -f core $(EXES_LIN) $(OBJS_LIN) $(EXES_MCK) $(OBJS_MCK)
+
--- a/test/issues/1141/README
+++ b/test/issues/1141/README
@ -0,0 +1,13 @@
+===========
+How to test
+===========
+(1) Edit the following line in Makefile
+
+    MCKDIR=$(HOME)/project/os/install
+
+(2) make test
+(3) Check if the first value, number of instructions retired,
+    shows around 3 million.
+(4) Check if the second value, number of cycles taken,
+    shows around 3 million / instructions-per-cycle
+    (1 - 1.5, depends on the processor).