linux-kernel - [PATCH 15/17] perf top: Show info message while collecting samples

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Message-Id: <20190820192733.19180-16-acme@kernel.org>
Date:   Tue, 20 Aug 2019 16:27:31 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH 15/17] perf top: Show info message while collecting samples

From: Arnaldo Carvalho de Melo <acme@...hat.com>

Give visual cue about what is happening while initially collecting the
minimal set of samples to collect/sort/display.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Link: https://lkml.kernel.org/n/tip-xcui60p1v6ozijfam2o89ya8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/ui/browsers/hists.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index b195b1ba625b..30547fdb0787 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -2894,6 +2894,9 @@ static int perf_evsel__hists_browse(struct evsel *evsel, int nr_events,
 	if (symbol_conf.col_width_list_str)
 		perf_hpp__set_user_width(symbol_conf.col_width_list_str);
 
+	if (!is_report_browser(hbt))
+		browser->b.no_samples_msg = "Collecting samples...";
+
 	while (1) {
 		struct thread *thread = NULL;
 		struct map *map = NULL;
-- 
2.21.0