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perf tests: Spawn child for each test

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

Acked-by: Namhyung 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: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1401892622-30848-11-git-send-email-jolsa@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
This commit is contained in:
Jiri Olsa 2014-05-10 17:22:30 +02:00
parent c1f9aa0a61
commit 0d8a5faaf5
1 changed files with 31 additions and 1 deletions
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32
tools/perf/tests/builtin-test.c
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@ -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) {