all: t b
clean:
- rm -f $(OBJS) t main.o main.h b bench.o tests.a
+ rm -f $(OBJS) t t.o main.h b b.o tests.a
.c.o:
$(CC) $(CFLAGS) $(INC) -c -o $@ $<
-$(OBJS): $(ROOTDIR)/common/test.h
+$(OBJS): $(ROOTDIR)/common/test.h $(ROOTDIR)/Makefile.conf
main.h: $(OBJS)
nm -f posix $+ |awk ' \
$(AR) rc $@ $+
$(RANLIB) $@
-main.o: $(ROOTDIR)/common/main.c $(ROOTDIR)/common/test.h main.h
+t.o: $(ROOTDIR)/common/t.c $(ROOTDIR)/common/test.h main.h
$(CC) $(CFLAGS) $(INC) -I. -c -o $@ $<
-t: main.o tests.a
+t: t.o tests.a
$(CC) $+ $(LDFLAGS) -o $@
-bench.o: $(ROOTDIR)/common/bench.c $(ROOTDIR)/common/test.h main.h
+b.o: $(ROOTDIR)/common/b.c $(ROOTDIR)/common/test.h main.h
$(CC) $(CFLAGS) $(INC) -I. -c -o $@ $<
-b: bench.o tests.a
+b: b.o tests.a
$(CC) $+ $(LDFLAGS) -lrt -o $@
.PHONY: all clean
--- /dev/null
+#define _POSIX_C_SOURCE 200809L
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "test.h"
+
+#define T(t)
+#define B(t) void t();
+#include "main.h"
+#undef B
+
+static int verbose = 1;
+
+void error__(const char *n, int l, const char *s, ...) {
+ fprintf(stderr, "use error in tests only\n");
+}
+
+int N;
+static unsigned long long start;
+static unsigned long long dt;
+//static unsigned long long bytes;
+
+#define SEC 1000000000ULL
+#define MAXN 500000000
+
+static unsigned long long tic() {
+ struct timespec ts;
+
+ if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0) {
+ fprintf(stderr, "bench: clock_gettime failed: %s\n", strerror(errno));
+ return 0;
+ }
+ return ts.tv_sec*SEC + ts.tv_nsec;
+}
+
+void start_timer() {
+ if (!start)
+ start = tic();
+}
+
+void stop_timer() {
+ if (start)
+ dt += tic() - start;
+ start = 0;
+}
+
+void reset_timer() {
+ if (start)
+ start = tic();
+ dt = 0;
+}
+
+static int nextN() {
+ unsigned long long n = dt/N;
+
+ if (n)
+ n = SEC/2/n;
+ else
+ n = SEC/2;
+ n += n/2;
+ if (n > N*100ULL)
+ n = N*100ULL;
+ else if (n <= N)
+ n = N+1;
+ if (n > MAXN)
+ n = MAXN;
+ return n;
+}
+
+void vmstats() {
+ FILE *f;
+ char buf[256];
+ int maj, min, in_heap=0;
+ unsigned long l;
+ size_t vm_size=0, vm_rss=0, vm_priv_dirty=0;
+
+ f = fopen("/proc/self/smaps", "rb");
+ if (f) while (fgets(buf, sizeof buf, f)) {
+ if (sscanf(buf, "%*lx-%*lx %*s %*lx %x:%x %*lu %*s", &maj, &min)==2)
+ in_heap = (!maj && !min && !strstr(buf, "---p") && (strstr(buf, "[heap]") || !strchr(buf, '[')));
+ if (in_heap) {
+ if (sscanf(buf, "Size: %lu", &l)==1) vm_size += l;
+ else if (sscanf(buf, "Rss: %lu", &l)==1) vm_rss += l;
+ else if (sscanf(buf, "Private_Dirty: %lu", &l)==1) vm_priv_dirty += l;
+ }
+ }
+ if (f) fclose(f);
+ fprintf(stderr, " %7zu virt %7zu res %7zu dirty", vm_size, vm_rss, vm_priv_dirty);
+}
+
+void stats() {
+ if (dt/N > 100)
+ fprintf(stderr, "%10d N %10llu ns/op ", N, dt/N);
+ else
+ fprintf(stderr, "%10d N %13.2f ns/op", N, (double)dt/N);
+ if (verbose)
+ vmstats();
+ fputc('\n', stderr);
+}
+
+static void run(const char *name, void (*f)()) {
+ int p = fork();
+ if (p) {
+ int s;
+ if (p<0 || wait(&s)<0 || !WIFEXITED(s) || WEXITSTATUS(s))
+ fprintf(stderr, "benchmark %s failed\n", name);
+ return;
+ }
+ fprintf(stderr, "%-32s", name);
+ for (N=1; ; N=nextN()) {
+ reset_timer();
+ start_timer();
+ f();
+ stop_timer();
+// fprintf(stderr, "%10d%12llu next: %d\n", N, dt, nextN());
+ if (dt >= SEC/2 || N >= MAXN) {
+ stats();
+ exit(0);
+ }
+ if (N <= 0) {
+ fprintf(stderr, "bench: fatal: N <= 0\n");
+ exit(1);
+ }
+ }
+}
+
+int main() {
+#define B(t) run(#t, t);
+#include "main.h"
+ return 0;
+}
+++ /dev/null
-#define _POSIX_C_SOURCE 200809L
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <time.h>
-#include "test.h"
-
-#define T(t)
-#define B(t) void t();
-#include "main.h"
-#undef B
-
-//static int verbose;
-
-void error__(const char *n, int l, const char *s, ...) {
- fprintf(stderr, "use error in tests only\n");
-}
-
-int N;
-static unsigned long long start;
-static unsigned long long dt;
-//static unsigned long long bytes;
-
-#define SEC 1000000000ULL
-#define MAXN 1000000000
-
-static unsigned long long tic() {
- struct timespec ts;
-
- if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0) {
- fprintf(stderr, "bench: clock_gettime failed: %s\n", strerror(errno));
- return 0;
- }
- return ts.tv_sec*SEC + ts.tv_nsec;
-}
-
-void start_timer() {
- if (!start)
- start = tic();
-}
-
-void stop_timer() {
- if (start)
- dt += tic() - start;
- start = 0;
-}
-
-void reset_timer() {
- if (start)
- start = tic();
- dt = 0;
-}
-
-static int nextN() {
- unsigned long long n = dt/N;
-
- if (n)
- n = SEC/n;
- else
- n = SEC;
- n += n/4;
- if (n > N*100ULL)
- n = N*100ULL;
- else if (n <= N)
- n = N+1;
- if (n > MAXN)
- n = MAXN;
- return n;
-}
-
-static void run(const char *name, void (*f)()) {
- fprintf(stderr, "%s:", name);
- for (N=1; ; N=nextN()) {
- reset_timer();
- start_timer();
- f();
- stop_timer();
-// fprintf(stderr, "%10d%12llu\n", N, ns);
- if (dt >= SEC || N >= MAXN)
- break;
- if (N <= 0) {
- fprintf(stderr, "bench: fatal: N <= 0\n");
- return;
- }
- }
- if (dt/N > 100)
- fprintf(stderr, "%10d%10llu ns/op\n", N, dt/N);
- else
- fprintf(stderr, "%10d%13.2f ns/op\n", N, (double)dt/N);
-}
-
-int main() {
-#define B(t) run(#t, t);
-#include "main.h"
- return 0;
-}
+++ /dev/null
-#define _POSIX_C_SOURCE 200809L
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include "test.h"
-
-#define B(t)
-#define T(t) void t();
-#include "main.h"
-#undef T
-
-static int failed;
-static const char *name;
-
-static int verbose;
-static int count;
-static int nfailed;
-
-static void errtimer() { error("use *_timer in benchmarks only\n"); }
-int N = 0;
-void start_timer() { errtimer(); }
-void stop_timer() { errtimer(); }
-void reset_timer() { errtimer(); }
-
-void error__(const char *n, int l, const char *s, ...) {
- va_list ap;
-
- failed = 1;
- fprintf(stderr, "- ERROR %s at %s:%d: ", name, n, l);
- va_start(ap, s);
- vfprintf(stderr, s, ap);
- va_end(ap);
-}
-
-static void run(const char *n, void (*f)()) {
- pid_t pid;
- int s;
-
- count++;
- failed = 0;
- name = n;
- if (verbose)
- fprintf(stderr, "running %s:\n", name);
-
- pid = fork();
- if (pid == 0) {
- /* run test in a child process */
- f();
- exit(failed);
- }
-
- if (pid == -1)
- error("fork failed: %s\n", strerror(errno));
- else {
- if (waitpid(pid, &s, 0) == -1)
- error("waitpid failed: %s\n", strerror(errno));
- else if (!WIFEXITED(s))
- error("abnormal exit: %s\n", WIFSIGNALED(s) ? strsignal(WTERMSIG(s)) : "(unknown)");
- else
- failed = !!WEXITSTATUS(s);
- }
-
- if (failed) {
- nfailed++;
- fprintf(stderr, "FAILED %s\n", name);
- } else if (verbose)
- fprintf(stderr, "PASSED %s\n", name);
-}
-
-static int summary() {
- fprintf(stderr, "PASS:%d FAIL:%d\n", count-nfailed, nfailed);
- return !!nfailed;
-}
-
-int main() {
-#define T(t) run(#t, t);
-#include "main.h"
- return summary();
-}
--- /dev/null
+#define _POSIX_C_SOURCE 200809L
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "test.h"
+
+#define B(t)
+#define T(t) void t();
+#include "main.h"
+#undef T
+
+static int failed;
+static const char *name;
+
+static int verbose;
+static int count;
+static int nfailed;
+
+static void errtimer() { error("use *_timer in benchmarks only\n"); }
+int N = 0;
+void start_timer() { errtimer(); }
+void stop_timer() { errtimer(); }
+void reset_timer() { errtimer(); }
+
+void error__(const char *n, int l, const char *s, ...) {
+ va_list ap;
+
+ failed = 1;
+ fprintf(stderr, "- ERROR %s at %s:%d: ", name, n, l);
+ va_start(ap, s);
+ vfprintf(stderr, s, ap);
+ va_end(ap);
+}
+
+static void run(const char *n, void (*f)()) {
+ pid_t pid;
+ int s;
+
+ count++;
+ failed = 0;
+ name = n;
+ if (verbose)
+ fprintf(stderr, "running %s:\n", name);
+
+ pid = fork();
+ if (pid == 0) {
+ /* run test in a child process */
+ f();
+ exit(failed);
+ }
+
+ if (pid == -1)
+ error("fork failed: %s\n", strerror(errno));
+ else {
+ if (waitpid(pid, &s, 0) == -1)
+ error("waitpid failed: %s\n", strerror(errno));
+ else if (!WIFEXITED(s))
+ error("abnormal exit: %s\n", WIFSIGNALED(s) ? strsignal(WTERMSIG(s)) : "(unknown)");
+ else
+ failed = !!WEXITSTATUS(s);
+ }
+
+ if (failed) {
+ nfailed++;
+ fprintf(stderr, "FAILED %s\n", name);
+ } else if (verbose)
+ fprintf(stderr, "PASSED %s\n", name);
+}
+
+static int summary() {
+ fprintf(stderr, "PASS:%d FAIL:%d\n", count-nfailed, nfailed);
+ return !!nfailed;
+}
+
+int main() {
+#define T(t) run(#t, t);
+#include "main.h"
+ return summary();
+}
projects / libc-test / commitdiff