getrusage03 - test ru_maxrss behaviors in struct rusage
This test program is backported from upstream commit:
1f10206cf8e945220f7220a809d8bfc15c21f9a5, which fills ru_maxrss
value in struct rusage according to rss hiwater mark. To make sure
this feature works correctly, a series of tests are executed in
this program.
Signed-off-by: Caspar Zhang <[email protected]>
---
include/safe_macros.h | 5 +
lib/safe_macros.c | 15 +
runtest/syscalls | 1 +
testcases/kernel/syscalls/getrusage/getrusage03.c | 358 ++++++++++++++++++++
.../kernel/syscalls/getrusage/getrusage03_child.c | 182 ++++++++++
5 files changed, 561 insertions(+), 0 deletions(-)
create mode 100644 testcases/kernel/syscalls/getrusage/getrusage03.c
create mode 100644 testcases/kernel/syscalls/getrusage/getrusage03_child.c
diff --git a/include/safe_macros.h b/include/safe_macros.h
index 7c99c66..3753b7f 100644
--- a/include/safe_macros.h
+++ b/include/safe_macros.h
@@ -58,6 +58,11 @@ struct passwd* safe_getpwnam(const char *file, const int lineno,
#define SAFE_GETPWNAM(cleanup_fn, name) \
safe_getpwnam(__FILE__, __LINE__, cleanup_fn, (name))
+int safe_getrusage(const char *file, const int lineno,
+ void (*cleanup_fn)(void), int who, struct rusage *usage);
+#define SAFE_GETRUSAGE(cleanup_fn, who, usage) \
+ safe_getrusage(__FILE__, __LINE__, (cleanup_fn), (who), (usage))
+
void* safe_malloc(const char *file, const int lineno,
void (*cleanup_fn)(void), size_t size);
#define SAFE_MALLOC(cleanup_fn, size) \
diff --git a/lib/safe_macros.c b/lib/safe_macros.c
index c98376d..11f5fe6 100644
--- a/lib/safe_macros.c
+++ b/lib/safe_macros.c
@@ -1,5 +1,6 @@
#include <sys/types.h>
#include <sys/mman.h>
+#include <sys/resource.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <libgen.h>
@@ -108,6 +109,20 @@ safe_getpwnam(const char *file, const int lineno, void (*cleanup_fn)(void),
return (rval);
}
+int
+safe_getrusage(const char *file, const int lineno, void (*cleanup_fn)(void),
+ int who, struct rusage *usage)
+{
+ int rval;
+
+ rval = getrusage(who, usage);
+ if (rval == -1)
+ tst_brkm(TBROK|TERRNO, cleanup_fn, "getrusage failed at %s:%d",
+ file, lineno);
+
+ return rval;
+}
+
void*
safe_malloc(const char *file, const int lineno, void (*cleanup_fn)(void),
size_t size)
diff --git a/runtest/syscalls b/runtest/syscalls
index 4294d07..7989764 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -399,6 +399,7 @@ get_robust_list01 get_robust_list01
getrusage01 getrusage01
getrusage02 getrusage02
+getrusage03 getrusage03
getsid01 getsid01
getsid02 getsid02
diff --git a/testcases/kernel/syscalls/getrusage/getrusage03.c b/testcases/kernel/syscalls/getrusage/getrusage03.c
new file mode 100644
index 0000000..a50a852
--- /dev/null
+++ b/testcases/kernel/syscalls/getrusage/getrusage03.c
@@ -0,0 +1,358 @@
+/*
+ * getrusage03 - test ru_maxrss behaviors in struct rusage
+ *
+ * This test program is backported from upstream commit:
+ * 1f10206cf8e945220f7220a809d8bfc15c21f9a5, which fills ru_maxrss
+ * value in struct rusage according to rss hiwater mark. To make sure
+ * this feature works correctly, a series of tests are executed in
+ * this program.
+ *
+ * Copyright (C) 2011 Red Hat, Inc.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it
+ * is free of the rightful claim of any third person regarding
+ * infringement or the like. Any license provided herein, whether
+ * implied or otherwise, applies only to this software file. Patent
+ * licenses, if any, provided herein do not apply to combinations of
+ * this program with other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "test.h"
+#include "usctest.h"
+#include "safe_macros.h"
+
+char *TCID = "getrusage03";
+int TST_TOTAL = 1;
+
+#define DELTA_MAX 10240
+
+static struct rusage ru;
+static long maxrss_init;
+static int retval, status;
+static pid_t pid;
+
+static void inherit_fork(void);
+static void inherit_fork2(void);
+static void fork_malloc(void);
+static void grandchild_maxrss(void);
+static void zombie(void);
+static void sig_ign(void);
+static void exec_without_fork(void);
+static void check_return(int status, char *pass_msg, char *fail_msg);
+static int is_in_delta(long value);
+static void consume(int mega);
+static void setup(void);
+static void cleanup(void);
+
+int main(int argc, char *argv[])
+{
+ int lc;
+ char *msg;
+
+ msg = parse_opts(argc, argv, NULL, NULL);
+ if (msg != NULL)
+ tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
+
+ setup();
+
+ for (lc = 0; TEST_LOOPING(lc); lc++) {
+ Tst_count = 0;
+
+ tst_resm(TINFO, "allocate 100MB");
+ consume(100);
+
+ inherit_fork();
+ inherit_fork2();
+ fork_malloc();
+ grandchild_maxrss();
+ zombie();
+ sig_ign();
+ exec_without_fork();
+ }
+ cleanup();
+ tst_exit();
+}
+
+/* Testcase #01: fork inherit
+ * expect: initial.self ~= child.self */
+static void inherit_fork(void)
+{
+ tst_resm(TINFO, "Testcase #01: fork inherit");
+
+ SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru);
+ tst_resm(TINFO, "initial.self = %ld", ru.ru_maxrss);
+
+ switch (pid = fork()) {
+ case -1:
+ tst_brkm(TBROK|TERRNO, cleanup, "fork #1");
+ case 0:
+ maxrss_init = ru.ru_maxrss;
+ SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru);
+ tst_resm(TINFO, "child.self = %ld", ru.ru_maxrss);
+ exit(is_in_delta(maxrss_init - ru.ru_maxrss));
+ default:
+ break;
+ }
+
+ if (waitpid(pid, &status, WUNTRACED|WCONTINUED) == -1)
+ tst_brkm(TBROK|TERRNO, cleanup, "waitpid");
+ check_return(WEXITSTATUS(status), "initial.self ~= child.self",
+ "initial.self !~= child.self");
+}
+
+/* Testcase #02: fork inherit (cont.)
+ * expect: initial.children ~= 100MB, child.children = 0 */
+static void inherit_fork2(void)
+{
+ tst_resm(TINFO, "Testcase #02: fork inherit(cont.)");
+
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ tst_resm(TINFO, "initial.children = %ld", ru.ru_maxrss);
+ if (is_in_delta(ru.ru_maxrss - 102400))
+ tst_resm(TPASS, "initial.children ~= 100MB");
+ else
+ tst_resm(TFAIL, "initial.children !~= 100MB");
+
+ switch (pid = fork()) {
+ case -1:
+ tst_brkm(TBROK|TERRNO, cleanup, "fork #2");
+ case 0:
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ tst_resm(TINFO, "child.children = %ld", ru.ru_maxrss);
+ exit(ru.ru_maxrss == 0);
+ default:
+ break;
+ }
+
+ if (waitpid(pid, &status, WUNTRACED|WCONTINUED) == -1)
+ tst_brkm(TBROK|TERRNO, cleanup, "waitpid");
+ check_return(WEXITSTATUS(status), "child.children == 0",
+ "child.children != 0");
+}
+
+/* Testcase #03: fork + malloc
+ * expect: initial.self + 50MB ~= child.self */
+static void fork_malloc(void)
+{
+ tst_resm(TINFO, "Testcase #03: fork + malloc");
+
+ SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru);
+ tst_resm(TINFO, "initial.self = %ld", ru.ru_maxrss);
+
+ switch (pid = fork()) {
+ case -1:
+ tst_brkm(TBROK|TERRNO, cleanup, "fork #3");
+ case 0:
+ maxrss_init = ru.ru_maxrss;
+ tst_resm(TINFO, "child allocate +50MB");
+ consume(50);
+ SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru);
+ tst_resm(TINFO, "child.self = %ld", ru.ru_maxrss);
+ exit(is_in_delta(maxrss_init + 51200 - ru.ru_maxrss));
+ default:
+ break;
+ }
+
+ if (waitpid(pid, &status, WUNTRACED|WCONTINUED) == -1)
+ tst_brkm(TBROK|TERRNO, cleanup, "waitpid");
+ check_return(WEXITSTATUS(status), "initial.self + 50MB ~= child.self",
+ "initial.self + 50MB !~= child.self");
+}
+
+/* Testcase #04: grandchild maxrss
+ * expect: post_wait.children ~= 300MB */
+static void grandchild_maxrss(void)
+{
+ tst_resm(TINFO, "Testcase #04: grandchild maxrss");
+
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ tst_resm(TINFO, "initial.children = %ld", ru.ru_maxrss);
+
+ switch (pid = fork()) {
+ case -1:
+ tst_brkm(TBROK|TERRNO, cleanup, "fork #4");
+ case 0:
+ retval = system("getrusage03_child -g 300");
+ if ((WIFEXITED(retval) && WEXITSTATUS(retval) != 0))
+ tst_brkm(TBROK|TERRNO, cleanup, "system");
+ exit(0);
+ default:
+ break;
+ }
+
+ if (waitpid(pid, &status, WUNTRACED|WCONTINUED) == -1)
+ tst_brkm(TBROK|TERRNO, cleanup, "waitpid");
+ if (WEXITSTATUS(status) != 0)
+ tst_brkm(TBROK|TERRNO, cleanup, "child exit status is not 0");
+
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ tst_resm(TINFO, "post_wait.children = %ld", ru.ru_maxrss);
+ if (is_in_delta(ru.ru_maxrss - 307200))
+ tst_resm(TPASS, "child.children ~= 300MB");
+ else
+ tst_resm(TFAIL, "child.children !~= 300MB");
+}
+
+/* Testcase #05: zombie
+ * expect: initial ~= pre_wait, post_wait ~= 400MB */
+static void zombie(void)
+{
+ tst_resm(TINFO, "Testcase #05: zombie");
+
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ tst_resm(TINFO, "initial.children = %ld", ru.ru_maxrss);
+ maxrss_init = ru.ru_maxrss;
+
+ switch (pid = fork()) {
+ case -1:
+ tst_brkm(TBROK, cleanup, "fork #5");
+ case 0:
+ retval = system("getrusage03_child -n 400");
+ if ((WIFEXITED(retval) && WEXITSTATUS(retval) != 0))
+ tst_brkm(TBROK|TERRNO, cleanup, "system");
+ exit(0);
+ default:
+ break;
+ }
+
+ sleep(1); /* children become zombie */
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ tst_resm(TINFO, "pre_wait.children = %ld", ru.ru_maxrss);
+ if (is_in_delta(ru.ru_maxrss - maxrss_init))
+ tst_resm(TPASS, "initial.children ~= pre_wait.children");
+ else
+ tst_resm(TFAIL, "initial.children !~= pre_wait.children");
+
+ if (waitpid(pid, &status, WUNTRACED|WCONTINUED) == -1)
+ tst_brkm(TBROK|TERRNO, cleanup, "waitpid");
+ if (WEXITSTATUS(status) != 0)
+ tst_brkm(TBROK|TERRNO, cleanup, "child exit status is not 0");
+
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ tst_resm(TINFO, "post_wait.children = %ld", ru.ru_maxrss);
+ if (is_in_delta(ru.ru_maxrss - 409600))
+ tst_resm(TPASS, "post_wait.children ~= 400MB");
+ else
+ tst_resm(TFAIL, "post_wait.children !~= 400MB");
+}
+
+/* Testcase #06: SIG_IGN
+ * expect: initial ~= after_zombie */
+static void sig_ign(void)
+{
+ tst_resm(TINFO, "Testcase #06: SIG_IGN");
+
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ tst_resm(TINFO, "initial.children = %ld", ru.ru_maxrss);
+ signal(SIGCHLD, SIG_IGN);
+ maxrss_init = ru.ru_maxrss;
+
+ switch (pid = fork()) {
+ case -1:
+ tst_brkm(TBROK, cleanup, "fork #6");
+ case 0:
+ retval = system("getrusage03_child -n 500");
+ if ((WIFEXITED(retval) && WEXITSTATUS(retval) != 0))
+ tst_brkm(TBROK|TERRNO, cleanup, "system");
+ exit(0);
+ default:
+ break;
+ }
+
+ sleep(1); /* children become zombie */
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ tst_resm(TINFO, "after_zombie.children = %ld", ru.ru_maxrss);
+ if (is_in_delta(ru.ru_maxrss - maxrss_init))
+ tst_resm(TPASS, "initial.children ~= after_zombie.children");
+ else
+ tst_resm(TFAIL, "initial.children !~= after_zombie.children");
+ signal(SIGCHLD, SIG_DFL);
+}
+
+/* Testcase #07: exec without fork
+ * expect: initial ~= fork */
+static void exec_without_fork(void)
+{
+ char str_maxrss_self[BUFSIZ], str_maxrss_child[BUFSIZ];
+ long maxrss_self, maxrss_child;
+
+ tst_resm(TINFO, "Testcase #07: exec without fork");
+
+ SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru);
+ maxrss_self = ru.ru_maxrss;
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ maxrss_child = ru.ru_maxrss;
+ tst_resm(TINFO, "initial.self = %ld, initial.children = %ld",
+ maxrss_self, maxrss_child);
+
+ sprintf(str_maxrss_self, "%ld", maxrss_self);
+ sprintf(str_maxrss_child, "%ld", maxrss_child);
+ if (execlp("getrusage03_child", "getrusage03_child", "-v",
+ "-s", str_maxrss_self,
+ "-l", str_maxrss_child, NULL) == -1)
+ tst_brkm(TBROK|TERRNO, cleanup, "execlp");
+}
+
+static int is_in_delta(long value)
+{
+ return (value >= -DELTA_MAX && value <= DELTA_MAX);
+}
+
+static void check_return(int status, char *pass_msg, char *fail_msg)
+{
+ switch (status) {
+ case 1:
+ tst_resm(TPASS, "%s", pass_msg);
+ break;
+ case 0:
+ tst_resm(TFAIL, "%s", fail_msg);
+ break;
+ default:
+ tst_resm(TFAIL, "child exit status is %d", status);
+ break;
+ }
+}
+
+static void consume(int mega)
+{
+ size_t sz;
+ void *ptr;
+
+ sz = mega * 1024 * 1024;
+ ptr = SAFE_MALLOC(cleanup, sz);
+ memset(ptr, 0, sz);
+}
+
+static void setup(void)
+{
+ tst_sig(FORK, DEF_HANDLER, cleanup);
+
+ TEST_PAUSE;
+}
+
+static void cleanup(void)
+{
+ TEST_CLEANUP;
+}
diff --git a/testcases/kernel/syscalls/getrusage/getrusage03_child.c b/testcases/kernel/syscalls/getrusage/getrusage03_child.c
new file mode 100644
index 0000000..0008aea
--- /dev/null
+++ b/testcases/kernel/syscalls/getrusage/getrusage03_child.c
@@ -0,0 +1,182 @@
+/*
+ * getrusage03_child.c - a child program executed by getrusage03
+ *
+ * Copyright (C) 2011 Red Hat, Inc.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it
+ * is free of the rightful claim of any third person regarding
+ * infringement or the like. Any license provided herein, whether
+ * implied or otherwise, applies only to this software file. Patent
+ * licenses, if any, provided herein do not apply to combinations of
+ * this program with other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "test.h"
+#include "usctest.h"
+#include "safe_macros.h"
+
+char *TCID = "getrusage03_child";
+int TST_TOTAL = 1;
+
+#define DELTA_MAX 10240
+
+static int opt_consume, opt_grand, opt_show, opt_self, opt_child;
+static char *consume_str, *grand_consume_str, *self_str, *child_str;
+
+option_t child_options[] = {
+ { "n:", &opt_consume, &consume_str },
+ { "g:", &opt_grand, &grand_consume_str },
+ { "v", &opt_show, NULL },
+ { "s:", &opt_self, &self_str },
+ { "l:", &opt_child, &child_str }
+};
+
+static void usage(void);
+static void consume(int mega);
+static long get_long(const char *str);
+static void setup(void);
+static void cleanup(void);
+
+int main(int argc, char *argv[])
+{
+ int lc;
+ pid_t pid;
+ long maxrss_self, maxrss_children, delta;
+ long consume_nr, grand_consume_nr, self_nr, child_nr;
+ struct rusage ru;
+ char *msg;
+
+ msg = parse_opts(argc, argv, child_options, usage);
+ if (msg != NULL)
+ tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
+
+ setup();
+
+ for (lc = 0; TEST_LOOPING(lc); lc++) {
+ Tst_count = 0;
+
+ if (opt_consume) {
+ consume_nr = get_long(consume_str);
+ tst_resm(TINFO, "child allocate %ldMB", consume_nr);
+ consume(consume_nr);
+ }
+
+ if (opt_grand) {
+ grand_consume_nr = get_long(grand_consume_str);
+ tst_resm(TINFO, "grandchild allocate %ldMB",
+ grand_consume_nr);
+ switch (pid = fork()) {
+ case -1:
+ tst_brkm(TBROK, cleanup, "fork");
+ case 0:
+ consume(grand_consume_nr);
+ exit(0);
+ default:
+ break;
+ }
+ while (waitpid(-1, &pid, WUNTRACED|WCONTINUED) > 0)
+ if (WEXITSTATUS(pid) != 0)
+ tst_brkm(TBROK|TERRNO, cleanup,
+ "child exit status is not 0");
+ }
+
+ if (opt_show) {
+ SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru);
+ maxrss_self = ru.ru_maxrss;
+ SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru);
+ maxrss_children = ru.ru_maxrss;
+ tst_resm(TINFO, "exec.self = %ld, exec.children = %ld",
+ maxrss_self, maxrss_children);
+ if (opt_self) {
+ self_nr = get_long(self_str);
+ delta = maxrss_self - self_nr;
+ if (delta >= -DELTA_MAX && delta <= DELTA_MAX)
+ tst_resm(TPASS,
+ "initial.self ~= exec.self");
+ else
+ tst_resm(TFAIL,
+ "initial.self !~= exec.self");
+ }
+ if (opt_child) {
+ child_nr = get_long(child_str);
+ delta = maxrss_children - child_nr;
+ if (delta >= -DELTA_MAX && delta <= DELTA_MAX)
+ tst_resm(TPASS,
+ "initial.children ~= exec.children");
+ else
+ tst_resm(TFAIL,
+ "initial.children !~= exec.children");
+ }
+ }
+ }
+
+ cleanup();
+ tst_exit();
+}
+
+static void usage(void)
+{
+ printf(" -n NUM consume NUM MB size\n");
+ printf(" -g NUM grandchild consume NUM MB size\n");
+ printf(" -v verbose mode, show rusage info\n");
+ printf(" -s NUM compare rusage_self.maxrss with given NUM\n");
+ printf(" -l NUM compare rusage_children.maxrss with given NUM\n");
+}
+
+static void consume(int mega)
+{
+ size_t sz;
+ void *ptr;
+
+ sz = mega * 1024 * 1024;
+ ptr = SAFE_MALLOC(cleanup, sz);
+ memset(ptr, 0, sz);
+}
+
+static long get_long(const char *str)
+{
+ long val;
+ char *endptr;
+
+ val = strtol(str, &endptr, 10);
+ if (((val == LONG_MAX || val == LONG_MIN) && errno == ERANGE) ||
+ (errno != 0 && val == 0))
+ tst_brkm(TBROK|TERRNO, cleanup, "strtol");
+ if (endptr == str || *endptr != '\0')
+ tst_brkm(TBROK, cleanup, "Non-digits were found.");
+
+ return val;
+}
+
+static void setup(void)
+{
+ tst_sig(FORK, DEF_HANDLER, cleanup);
+
+ TEST_PAUSE;
+}
+
+static void cleanup(void)
+{
+ TEST_CLEANUP;
+}
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