From: pjt@google.com
To: linux-kernel@vger.kernel.org
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>,
Srivatsa Vaddagiri <vatsa@in.ibm.com>,
Chris Friesen <cfriesen@nortel.com>,
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>,
Pierre Bourdon <pbourdon@excellency.fr>,
Paul Turner <pjt@google.com>,
Bharata B Rao <bharata@linux.vnet.ibm.com>
Subject: [RFC tg_shares_up improvements - v1 12/12] debug: export effective shares for analysis versus specified
Date: Fri, 15 Oct 2010 21:44:01 -0700 [thread overview]
Message-ID: <20101016045119.357629631@google.com> (raw)
In-Reply-To: 20101016044349.830426011@google.com
[-- Attachment #1: sched-tg-debug-add_issued_shares.patch --]
[-- Type: text/plain, Size: 922 bytes --]
---
kernel/sched.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
Index: kernel/sched.c
===================================================================
--- kernel/sched.c.orig
+++ kernel/sched.c
@@ -8607,6 +8607,21 @@ static u64 cpu_shares_read_u64(struct cg
return (u64) tg->shares;
}
+
+static u64 cpu_issued_shares_read_u64(struct cgroup *cgrp, struct cftype *cft)
+{
+ struct task_group *tg = cgroup_tg(cgrp);
+ u64 result = 0;
+ int i;
+
+ if (!tg->se[0])
+ return 0;
+
+ for_each_online_cpu(i)
+ result += tg->se[i]->load.weight;
+
+ return result;
+}
#endif /* CONFIG_FAIR_GROUP_SCHED */
#ifdef CONFIG_RT_GROUP_SCHED
@@ -8640,6 +8655,10 @@ static struct cftype cpu_files[] = {
.read_u64 = cpu_shares_read_u64,
.write_u64 = cpu_shares_write_u64,
},
+ {
+ .name = "issued_shares",
+ .read_u64 = cpu_issued_shares_read_u64,
+ },
#endif
#ifdef CONFIG_RT_GROUP_SCHED
{
--
next prev parent reply other threads:[~2010-10-16 4:53 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-16 4:43 [RFC tg_shares_up improvements - v1 00/12] [RFC tg_shares_up - v1 00/12] Reducing cost of tg->shares distribution pjt
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 01/12] sched: rewrite tg_shares_up pjt
2010-10-21 6:04 ` Bharata B Rao
2010-10-21 6:28 ` Paul Turner
2010-10-21 8:08 ` Bharata B Rao
2010-10-21 8:38 ` Paul Turner
2010-10-21 9:08 ` Peter Zijlstra
[not found] ` <AANLkTi=zYAfb_izD15ROxH=C6+zPzX+XEGw7r5UUoAar@mail.gmail.com>
2010-11-04 21:00 ` Paul Turner
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 02/12] sched: on-demand (active) cfs_rq list pjt
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 03/12] sched: make tg_shares_up() walk on-demand pjt
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 04/12] sched: fix load corruption from update_cfs_shares pjt
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 05/12] sched: fix update_cfs_load synchronization pjt
2010-10-21 9:52 ` Bharata B Rao
2010-10-21 18:25 ` Paul Turner
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 06/12] sched: hierarchal order on shares update list pjt
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 07/12] sched: add sysctl_sched_shares_window pjt
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 08/12] sched: update shares on idle_balance pjt
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 09/12] sched: demand based update_cfs_load() pjt
2010-10-16 4:43 ` [RFC tg_shares_up improvements - v1 10/12] sched: allow update_cfs_load to update global load pjt
2010-10-16 4:44 ` [RFC tg_shares_up improvements - v1 11/12] sched: update tg->shares after cpu.shares write pjt
2010-10-16 4:44 ` pjt [this message]
2010-10-16 19:46 ` [RFC tg_shares_up improvements - v1 00/12] [RFC tg_shares_up - v1 00/12] Reducing cost of tg->shares distribution Peter Zijlstra
2010-10-21 6:36 ` Paul Turner
2010-10-22 0:14 ` Paul Turner
2010-10-17 5:24 ` Balbir Singh
2010-10-17 9:38 ` Peter Zijlstra
2010-10-17 12:09 ` Balbir Singh
2010-11-03 18:27 ` Karl Rister
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