From: Andrey Vagin <avagin@openvz.org>
To: linux-kernel@vger.kernel.org
Cc: linux-api@vger.kernel.org, Andrey Vagin <avagin@openvz.org>,
Oleg Nesterov <oleg@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Cyrill Gorcunov <gorcunov@openvz.org>,
Pavel Emelyanov <xemul@parallels.com>,
Roger Luethi <rl@hellgate.ch>, Arnd Bergmann <arnd@arndb.de>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
David Ahern <dsahern@gmail.com>,
Andy Lutomirski <luto@amacapital.net>,
Pavel Odintsov <pavel.odintsov@gmail.com>
Subject: [PATCH 24/24] task_diag: Enhance fork tool to spawn threads
Date: Mon, 6 Jul 2015 11:47:25 +0300 [thread overview]
Message-ID: <1436172445-6979-25-git-send-email-avagin@openvz.org> (raw)
In-Reply-To: <1436172445-6979-1-git-send-email-avagin@openvz.org>
From: David Ahern <dsahern@gmail.com>
Add option to fork threads as well as processes.
Make the sleep time configurable too so that spawned
tasks exit on their own.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
---
tools/testing/selftests/task_diag/Makefile | 2 ++
tools/testing/selftests/task_diag/fork.c | 36 ++++++++++++++++++++++++++----
tools/testing/selftests/task_diag/run.sh | 4 ++--
3 files changed, 36 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/task_diag/Makefile b/tools/testing/selftests/task_diag/Makefile
index 7104573..0c53cf6 100644
--- a/tools/testing/selftests/task_diag/Makefile
+++ b/tools/testing/selftests/task_diag/Makefile
@@ -12,6 +12,8 @@ task_diag_comm.o: task_diag_comm.c task_diag_comm.h
task_diag_all: task_diag_all.o task_diag_comm.o
task_diag: task_diag.o task_diag_comm.o
fork: fork.c
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ -lpthread
+
task_proc_all: task_proc_all.c
clean:
diff --git a/tools/testing/selftests/task_diag/fork.c b/tools/testing/selftests/task_diag/fork.c
index c6e17d1..ebddedd2 100644
--- a/tools/testing/selftests/task_diag/fork.c
+++ b/tools/testing/selftests/task_diag/fork.c
@@ -2,15 +2,39 @@
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
+#include <pthread.h>
+void *f(void *arg)
+{
+ unsigned long t = (unsigned long) arg;
+
+ sleep(t);
+ return NULL;
+}
+
+/* usage: fork nproc [mthreads [sleep]] */
int main(int argc, char **argv)
{
- int i, n;
+ int i, j, n, m = 0;
+ unsigned long t_sleep = 1000;
+ pthread_attr_t attr;
+ pthread_t id;
- if (argc < 2)
+ if (argc < 2) {
+ fprintf(stderr, "usage: fork nproc [mthreads [sleep]]\n");
return 1;
+ }
n = atoi(argv[1]);
+
+ if (argc > 2)
+ m = atoi(argv[2]);
+
+ if (argc > 3)
+ t_sleep = atoi(argv[3]);
+
+ pthread_attr_init(&attr);
+
for (i = 0; i < n; i++) {
pid_t pid;
@@ -20,8 +44,12 @@ int main(int argc, char **argv)
return 1;
}
if (pid == 0) {
- while (1)
- sleep(1000);
+ if (m) {
+ for (j = 0; j < m-1; ++j)
+ pthread_create(&id, &attr, f, (void *)t_sleep);
+ }
+
+ sleep(t_sleep);
return 0;
}
}
diff --git a/tools/testing/selftests/task_diag/run.sh b/tools/testing/selftests/task_diag/run.sh
index 62250a5..06e182d 100755
--- a/tools/testing/selftests/task_diag/run.sh
+++ b/tools/testing/selftests/task_diag/run.sh
@@ -1,6 +1,6 @@
#!/bin/sh
-./fork 1000
+./fork 1000 10
nproc=`./task_diag_all A | grep 'pid.*tgid.*ppid.*comm fork$' | wc -l`
killall -9 fork
-[ "$nproc" -eq 1000 ] && exit 0
+[ "$nproc" -eq 10000 ] && exit 0
echo "Unexpected number of tasks '$nproc'" 1>&2
--
2.1.0
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Vagin <avagin-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Andrey Vagin <avagin-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>,
Oleg Nesterov <oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
Cyrill Gorcunov
<gorcunov-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>,
Pavel Emelyanov <xemul-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>,
Roger Luethi <rl-7uj+XXdSDtwfv37vnLkPlQ@public.gmane.org>,
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
Arnaldo Carvalho de Melo
<acme-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
David Ahern <dsahern-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>,
Pavel Odintsov
<pavel.odintsov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: [PATCH 24/24] task_diag: Enhance fork tool to spawn threads
Date: Mon, 6 Jul 2015 11:47:25 +0300 [thread overview]
Message-ID: <1436172445-6979-25-git-send-email-avagin@openvz.org> (raw)
In-Reply-To: <1436172445-6979-1-git-send-email-avagin-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
From: David Ahern <dsahern-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Add option to fork threads as well as processes.
Make the sleep time configurable too so that spawned
tasks exit on their own.
Signed-off-by: David Ahern <dsahern-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Signed-off-by: Andrey Vagin <avagin-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
---
tools/testing/selftests/task_diag/Makefile | 2 ++
tools/testing/selftests/task_diag/fork.c | 36 ++++++++++++++++++++++++++----
tools/testing/selftests/task_diag/run.sh | 4 ++--
3 files changed, 36 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/task_diag/Makefile b/tools/testing/selftests/task_diag/Makefile
index 7104573..0c53cf6 100644
--- a/tools/testing/selftests/task_diag/Makefile
+++ b/tools/testing/selftests/task_diag/Makefile
@@ -12,6 +12,8 @@ task_diag_comm.o: task_diag_comm.c task_diag_comm.h
task_diag_all: task_diag_all.o task_diag_comm.o
task_diag: task_diag.o task_diag_comm.o
fork: fork.c
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ -lpthread
+
task_proc_all: task_proc_all.c
clean:
diff --git a/tools/testing/selftests/task_diag/fork.c b/tools/testing/selftests/task_diag/fork.c
index c6e17d1..ebddedd2 100644
--- a/tools/testing/selftests/task_diag/fork.c
+++ b/tools/testing/selftests/task_diag/fork.c
@@ -2,15 +2,39 @@
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
+#include <pthread.h>
+void *f(void *arg)
+{
+ unsigned long t = (unsigned long) arg;
+
+ sleep(t);
+ return NULL;
+}
+
+/* usage: fork nproc [mthreads [sleep]] */
int main(int argc, char **argv)
{
- int i, n;
+ int i, j, n, m = 0;
+ unsigned long t_sleep = 1000;
+ pthread_attr_t attr;
+ pthread_t id;
- if (argc < 2)
+ if (argc < 2) {
+ fprintf(stderr, "usage: fork nproc [mthreads [sleep]]\n");
return 1;
+ }
n = atoi(argv[1]);
+
+ if (argc > 2)
+ m = atoi(argv[2]);
+
+ if (argc > 3)
+ t_sleep = atoi(argv[3]);
+
+ pthread_attr_init(&attr);
+
for (i = 0; i < n; i++) {
pid_t pid;
@@ -20,8 +44,12 @@ int main(int argc, char **argv)
return 1;
}
if (pid == 0) {
- while (1)
- sleep(1000);
+ if (m) {
+ for (j = 0; j < m-1; ++j)
+ pthread_create(&id, &attr, f, (void *)t_sleep);
+ }
+
+ sleep(t_sleep);
return 0;
}
}
diff --git a/tools/testing/selftests/task_diag/run.sh b/tools/testing/selftests/task_diag/run.sh
index 62250a5..06e182d 100755
--- a/tools/testing/selftests/task_diag/run.sh
+++ b/tools/testing/selftests/task_diag/run.sh
@@ -1,6 +1,6 @@
#!/bin/sh
-./fork 1000
+./fork 1000 10
nproc=`./task_diag_all A | grep 'pid.*tgid.*ppid.*comm fork$' | wc -l`
killall -9 fork
-[ "$nproc" -eq 1000 ] && exit 0
+[ "$nproc" -eq 10000 ] && exit 0
echo "Unexpected number of tasks '$nproc'" 1>&2
--
2.1.0
next prev parent reply other threads:[~2015-07-06 8:51 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-06 8:47 [PATCH 0/24] kernel: add a netlink interface to get information about processes (v2) Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 01/24] kernel: define taststats commands in the one place Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 02/24] kernel: add a netlink interface to get information about tasks (v2) Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 03/24] kernel: make taskstats available from all net namespaces Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 04/24] kernel: move next_tgid from fs/proc Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 05/24] task_diag: add ability to get information about all tasks Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 06/24] task_diag: add ability to split per-task data on a few netlink messages Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 07/24] task_diag: add a new group to get process credentials Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 08/24] proc: pick out a function to iterate task children Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-14 18:02 ` Oleg Nesterov
2015-07-14 18:02 ` Oleg Nesterov
2015-07-17 15:57 ` Andrew Vagin
2015-07-17 15:57 ` Andrew Vagin
2015-07-18 21:22 ` Oleg Nesterov
2015-07-18 21:22 ` Oleg Nesterov
2015-07-06 8:47 ` [PATCH 09/24] proc: move task_next_child() from fs/proc Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 10/24] task_diag: add ability to dump children (v2) Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 11/24] task_diag: add a new group to get task statistics Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 12/24] task_diag: add a new group to get tasks memory mappings (v2) Andrey Vagin
2015-07-14 18:08 ` Oleg Nesterov
2015-07-14 18:08 ` Oleg Nesterov
2015-07-15 2:02 ` David Ahern
2015-07-15 2:02 ` David Ahern
2015-07-06 8:47 ` [PATCH 13/24] task_diag: shows memory consumption for " Andrey Vagin
2015-07-06 8:47 ` [PATCH 14/24] task_diag: add a marcos to enumirate memory mappings Andrey Vagin
2015-07-06 8:47 ` [PATCH 15/24] proc: give task_struct instead of pid into first_tid Andrey Vagin
2015-07-14 18:11 ` Oleg Nesterov
2015-07-06 8:47 ` [PATCH 16/24] proc: move first_tid and next_tid out of proc Andrey Vagin
2015-07-06 8:47 ` [PATCH 17/24] task_diag: add ability to dump theads Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin
2015-07-06 8:47 ` [PATCH 18/24] task_diag: add ability to handle one task in a continious mode Andrey Vagin
2015-07-06 8:47 ` [PATCH 19/24] task_diag: Add option to dump all threads for all tasks Andrey Vagin
2015-07-06 8:47 ` [PATCH 20/24] task_diag: Only add VMAs for thread_group leader Andrey Vagin
2015-07-14 17:47 ` Oleg Nesterov
2015-07-14 17:47 ` Oleg Nesterov
2015-07-15 2:01 ` David Ahern
2015-07-15 13:31 ` Oleg Nesterov
2015-07-15 13:31 ` Oleg Nesterov
2015-07-06 8:47 ` [PATCH 21/24] task diag: Add support for TGID attribute Andrey Vagin
2015-07-06 8:47 ` [PATCH 22/24] Documentation: add documentation for task_diag Andrey Vagin
2015-07-06 8:47 ` [PATCH 23/24] selftest: check the task_diag functinonality Andrey Vagin
2015-07-06 8:47 ` Andrey Vagin [this message]
2015-07-06 8:47 ` [PATCH 24/24] task_diag: Enhance fork tool to spawn threads Andrey Vagin
2015-07-06 17:10 ` [PATCH 0/24] kernel: add a netlink interface to get information about processes (v2) Andy Lutomirski
2015-07-07 15:43 ` Andrew Vagin
2015-07-07 15:56 ` Andy Lutomirski
2015-07-07 15:56 ` Andy Lutomirski
2015-07-07 16:17 ` David Ahern
2015-07-07 16:17 ` David Ahern
2015-07-07 16:24 ` Andy Lutomirski
2015-07-07 16:41 ` David Ahern
2015-07-07 16:41 ` David Ahern
2015-07-08 16:10 ` Andrew Vagin
2015-07-08 16:10 ` Andrew Vagin
2015-07-08 17:39 ` Andy Lutomirski
2015-07-08 22:49 ` Andrey Vagin
2015-07-08 23:48 ` Andy Lutomirski
2015-07-08 23:48 ` Andy Lutomirski
2015-07-07 16:25 ` Arnaldo Carvalho de Melo
2015-07-07 16:25 ` Arnaldo Carvalho de Melo
2015-07-07 16:27 ` Andy Lutomirski
2015-07-07 16:27 ` Andy Lutomirski
2015-07-07 16:56 ` David Ahern
2015-07-07 16:56 ` David Ahern
2015-11-24 15:18 ` Andrew Vagin
2015-11-24 15:18 ` Andrew Vagin
2015-12-03 23:20 ` Andy Lutomirski
2015-12-03 23:20 ` Andy Lutomirski
2015-12-03 23:43 ` Arnd Bergmann
2015-12-14 8:05 ` Andrew Vagin
2015-12-14 8:05 ` Andrew Vagin
2015-12-14 7:52 ` Andrew Vagin
2015-12-14 7:52 ` Andrew Vagin
2015-12-14 22:38 ` Andy Lutomirski
2015-12-15 15:53 ` Andrew Vagin
2015-12-15 15:53 ` Andrew Vagin
2015-12-15 16:43 ` Andy Lutomirski
2015-12-15 16:43 ` Andy Lutomirski
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