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Commit 0d8a5faa authored by Jiri Olsa's avatar Jiri Olsa
Browse files

perf tests: Spawn child for each test 



In upcoming tests we will setup process limits, which
might affect other tests. Spawning child for each test
to prevent this.

Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reviewed-by: default avatarDavid Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1401892622-30848-11-git-send-email-jolsa@kernel.org


Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
parent c1f9aa0a

tools/perf/tests/builtin-test.c

+31 −1
Original line number Diff line number Diff line
@@ -3,6 +3,8 @@ 
 *

 * Builtin regression testing command: ever growing number of sanity tests

 */

#include <unistd.h>

#include <string.h>

#include "builtin.h"

#include "intlist.h"

#include "tests.h"
@@ -172,6 +174,34 @@ static bool perf_test__matches(int curr, int argc, const char *argv[]) 
	return false;

}



static int run_test(struct test *test)

{

	int status, err = -1, child = fork();



	if (child < 0) {

		pr_err("failed to fork test: %s\n", strerror(errno));

		return -1;

	}



	if (!child) {

		pr_debug("test child forked, pid %d\n", getpid());

		err = test->func();

		exit(err);

	}



	wait(&status);



	if (WIFEXITED(status)) {

		err = WEXITSTATUS(status);

		pr_debug("test child finished with %d\n", err);

	} else if (WIFSIGNALED(status)) {

		err = -1;

		pr_debug("test child interrupted\n");

	}



	return err;

}



static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)

{

	int i = 0;
@@ -200,7 +230,7 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist) 
		}



		pr_debug("\n--- start ---\n");

		err = tests[curr].func();

		err = run_test(&tests[curr]);

		pr_debug("---- end ----\n%s:", tests[curr].desc);



		switch (err) {