perf stat: Print out all arguments (44db76c8) · Commits · 戴 / test

Before: Performance counter stats for '/home/mingo/hackbench': After: Performance counter stats for '/home/mingo/hackbench 10': Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> LKML-Reference: <new-submission> Signed-off-by:

Ingo Molnar <mingo@elte.hu>

Documentation/perf_counter/builtin-stat.c

+10 −2

Original line number	Diff line number	Diff line
		@@ -228,6 +228,7 @@ static int do_perfstat(int argc, const char **argv)
		int counter;
		int status;
		int pid;
		int i;

		if (!system_wide)
		nr_cpus = 1;
		@@ -243,14 +244,17 @@ static int do_perfstat(int argc, const char **argv)

		if ((pid = fork()) < 0)
		perror("failed to fork");

		if (!pid) {
		if (execvp(argv[0], (char **)argv)) {
		perror(argv[0]);
		exit(-1);
		}
		}

		while (wait(&status) >= 0)
		;

		prctl(PR_TASK_PERF_COUNTERS_DISABLE);
		t1 = rdclock();

		@@ -259,8 +263,12 @@ static int do_perfstat(int argc, const char **argv)
		fflush(stdout);

		fprintf(stderr, "\n");
		fprintf(stderr, " Performance counter stats for \'%s\':\n",
		argv[0]);
		fprintf(stderr, " Performance counter stats for \'%s", argv[0]);

		for (i = 1; i < argc; i++)
		fprintf(stderr, " %s", argv[i]);

		fprintf(stderr, "\':\n");
		fprintf(stderr, "\n");

		for (counter = 0; counter < nr_counters; counter++)

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