From: Frederic Weisbecker <fweisbec@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Rik van Riel <riel@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>,
Stanislaw Gruszka <sgruszka@redhat.com>,
Wanpeng Li <wanpeng.li@hotmail.com>,
Christian Borntraeger <borntraeger@de.ibm.com>
Subject: [PATCH 06/10] powerpc: Migrate stolen_time field to accounting structure
Date: Thu, 5 Jan 2017 18:11:46 +0100 [thread overview]
Message-ID: <1483636310-6557-7-git-send-email-fweisbec@gmail.com> (raw)
In-Reply-To: <1483636310-6557-1-git-send-email-fweisbec@gmail.com>
That in order to gather all cputime accumulation to the same place.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Wanpeng Li <wanpeng.li@hotmail.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
arch/powerpc/include/asm/paca.h | 1 -
arch/powerpc/kernel/time.c | 6 +++---
arch/powerpc/xmon/xmon.c | 2 +-
3 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index 6a6792b..708c3e5 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -187,7 +187,6 @@ struct paca_struct {
/* Stuff for accurate time accounting */
struct cpu_accounting_data accounting;
- u64 stolen_time; /* TB ticks taken by hypervisor */
u64 dtl_ridx; /* read index in dispatch log */
struct dtl_entry *dtl_curr; /* pointer corresponding to dtl_ridx */
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 17a2cd1..714313e 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -273,7 +273,7 @@ void accumulate_stolen_time(void)
ust = scan_dispatch_log(acct->starttime);
acct->stime -= sst;
acct->utime -= ust;
- local_paca->stolen_time += ust + sst;
+ acct->steal_time += ust + sst;
local_paca->soft_enabled = save_soft_enabled;
}
@@ -288,8 +288,8 @@ static inline u64 calculate_stolen_time(u64 stop_tb)
acct->stime -= stolen;
}
- stolen += get_paca()->stolen_time;
- get_paca()->stolen_time = 0;
+ stolen += acct->steal_time;
+ acct->steal_time = 0;
return stolen;
}
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 9f3b170..3f864c3 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2294,7 +2294,7 @@ static void dump_one_paca(int cpu)
DUMP(p, accounting.starttime_user, "llx");
DUMP(p, accounting.startspurr, "llx");
DUMP(p, accounting.utime_sspurr, "llx");
- DUMP(p, stolen_time, "llx");
+ DUMP(p, accounting.steal_time, "llx");
#undef DUMP
catch_memory_errors = 0;
--
2.7.4
next prev parent reply other threads:[~2017-01-05 17:12 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-05 17:11 [PATCH 00/10] vtime: Delay cputime accounting to tick / context switch Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 01/10] powerpc32: Fix stale scaled stime on " Frederic Weisbecker
2017-01-14 10:00 ` [tip:sched/core] sched/cputime, " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 02/10] ia64: Fix wrong start cputime assignment on task switch Frederic Weisbecker
2017-01-14 10:00 ` [tip:sched/core] sched/cputime, ia64: Fix incorrect " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 03/10] cputime: Allow accounting system time using cpustat index Frederic Weisbecker
2017-01-14 10:01 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 04/10] cputime: Export account_guest_time Frederic Weisbecker
2017-01-14 10:01 ` [tip:sched/core] sched/cputime: Export account_guest_time() tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 05/10] powerpc: Prepare accounting structure for cputime flush on tick Frederic Weisbecker
2017-01-14 10:02 ` [tip:sched/core] sched/cputime, " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` Frederic Weisbecker [this message]
2017-01-14 10:03 ` [tip:sched/core] sched/cputime, powerpc: Migrate stolen_time field to the accounting structure tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 07/10] powerpc/vtime: Accumulate cputime and account only on tick/task switch Frederic Weisbecker
2017-01-14 10:03 ` [tip:sched/core] sched/cputime, " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 08/10] ia64: " Frederic Weisbecker
2017-01-14 10:04 ` [tip:sched/core] sched/cputime, " tip-bot for Frederic Weisbecker
2017-01-05 17:11 ` [PATCH 09/10] s390/cputime: delayed accounting of system time Frederic Weisbecker
2017-01-14 10:04 ` [tip:sched/core] sched/cputime, s390: Implement " tip-bot for Martin Schwidefsky
2017-01-05 17:11 ` [PATCH 10/10] vtime: Rename vtime_account_user() to vtime_flush() Frederic Weisbecker
2017-01-14 10:05 ` [tip:sched/core] sched/cputime: " tip-bot for Frederic Weisbecker
2017-01-09 8:13 ` [PATCH 00/10] vtime: Delay cputime accounting to tick / context switch Martin Schwidefsky
2017-01-10 11:45 ` Thomas Gleixner
2017-01-10 15:21 ` Frederic Weisbecker
-- strict thread matches above, loose matches on Subject: below --
2016-12-06 2:32 [PATCH 00/10] vtime: Delay cputime accounting to tick Frederic Weisbecker
2016-12-06 2:32 ` [PATCH 06/10] powerpc: Migrate stolen_time field to accounting structure Frederic Weisbecker
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