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authorMel Gorman <mgorman@suse.de>2013-10-07 12:29:22 +0200
committerIngo Molnar <mingo@kernel.org>2013-10-09 14:47:49 +0200
commite29cf08b05dc0b8151d65704d96d525a9e179a6b (patch)
tree07eb90e16973acca57ed9bc3866f2bff8ab0750a /fs/proc
parentsched/numa: Use {cpu, pid} to create task groups for shared faults (diff)
downloadlinux-e29cf08b05dc0b8151d65704d96d525a9e179a6b.tar.xz
linux-e29cf08b05dc0b8151d65704d96d525a9e179a6b.zip
sched/numa: Report a NUMA task group ID
It is desirable to model from userspace how the scheduler groups tasks over time. This patch adds an ID to the numa_group and reports it via /proc/PID/status. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1381141781-10992-45-git-send-email-mgorman@suse.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/proc')
-rw-r--r--fs/proc/array.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c
index cbd0f1b324b9..1bd2077187fd 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -183,6 +183,7 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
seq_printf(m,
"State:\t%s\n"
"Tgid:\t%d\n"
+ "Ngid:\t%d\n"
"Pid:\t%d\n"
"PPid:\t%d\n"
"TracerPid:\t%d\n"
@@ -190,6 +191,7 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
"Gid:\t%d\t%d\t%d\t%d\n",
get_task_state(p),
task_tgid_nr_ns(p, ns),
+ task_numa_group_id(p),
pid_nr_ns(pid, ns),
ppid, tpid,
from_kuid_munged(user_ns, cred->uid),