From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Jiri Olsa <jolsa@kernel.org>, David Ahern <dsahern@gmail.com>,
Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 6/9] perf ui progress: Fix progress update
Date: Tue, 12 Sep 2017 16:24:35 -0300 [thread overview]
Message-ID: <20170912192438.1334-7-acme@kernel.org> (raw)
In-Reply-To: <20170912192438.1334-1-acme@kernel.org>
From: Jiri Olsa <jolsa@kernel.org>
We currently update the 'next' variable only with a single step value.
But it's possible the 'adv' update is bigger than single 'step' value.
This would leave 'next' value under counted and force unnecessary
ui_progress__ops->update calls.
Calculate the amount of steps we need for 'adv' update and increase the
'next' with that amounts of steps.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170908120510.22515-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/progress.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
index a9c15804b1f6..ae91c8148edf 100644
--- a/tools/perf/ui/progress.c
+++ b/tools/perf/ui/progress.c
@@ -1,3 +1,4 @@
+#include <linux/kernel.h>
#include "../cache.h"
#include "progress.h"
@@ -14,10 +15,14 @@ struct ui_progress_ops *ui_progress__ops = &null_progress__ops;
void ui_progress__update(struct ui_progress *p, u64 adv)
{
+ u64 last = p->curr;
+
p->curr += adv;
if (p->curr >= p->next) {
- p->next += p->step;
+ u64 nr = DIV_ROUND_UP(p->curr - last, p->step);
+
+ p->next += nr * p->step;
ui_progress__ops->update(p);
}
}
--
2.13.5
next prev parent reply other threads:[~2017-09-12 19:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-12 19:24 [GIT PULL 0/9] perf/urgent fixes Arnaldo Carvalho de Melo
2017-09-12 19:24 ` [PATCH 1/9] tools include linux: Guard against redefinition of some macros Arnaldo Carvalho de Melo
2017-09-12 19:24 ` [PATCH 2/9] perf tests: Fix compile when libunwind's unwind.h is available Arnaldo Carvalho de Melo
2017-09-12 19:24 ` [PATCH 3/9] tools lib api: Fix make DEBUG=1 build Arnaldo Carvalho de Melo
2017-09-12 19:24 ` [PATCH 4/9] perf tools: Open perf.data with O_CLOEXEC flag Arnaldo Carvalho de Melo
2017-09-12 19:24 ` [PATCH 5/9] perf ui progress: Make sure we always define step value Arnaldo Carvalho de Melo
2017-09-12 19:24 ` Arnaldo Carvalho de Melo [this message]
2017-09-12 19:24 ` [PATCH 7/9] perf config: Check not only section->from_system_config but also item's Arnaldo Carvalho de Melo
2017-09-12 19:24 ` [PATCH 8/9] perf tools: Support running perf binaries with a dash in their name Arnaldo Carvalho de Melo
2017-09-12 19:24 ` [PATCH 9/9] perf stat: Wait for the correct child Arnaldo Carvalho de Melo
2017-09-13 7:26 ` [GIT PULL 0/9] perf/urgent fixes Ingo Molnar
2017-09-13 7:38 ` [PATCH] tools/include: Sync kernel ABI headers with tooling headers Ingo Molnar
2017-09-29 20:04 ` [tip:perf/urgent] tools include: " tip-bot for Ingo Molnar
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