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authorNamhyung Kim <namhyung.kim@lge.com>2013-05-14 11:08:59 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-05-28 16:23:59 +0300
commit933cbb1c6c617a6ae167538c2fa503efc9c4a832 (patch)
treefb558d90be1397cc4792bfeab8477a3305a1c2f9 /tools/perf/builtin-top.c
parent804f7ac78803ed095bb0402d540f859ecb1be9f1 (diff)
downloadop-kernel-dev-933cbb1c6c617a6ae167538c2fa503efc9c4a832.zip
op-kernel-dev-933cbb1c6c617a6ae167538c2fa503efc9c4a832.tar.gz
perf top: Fix -E option behavior
The -E/--entries option controls how many lines to be printed on stdio output but it doesn't work as it should be: If -E option is specified, print that many lines regardless of current window size, if not automatically adjust number of lines printed to fit into the window size. Reported-by: Minchan Kim <minchan@kernel.org> Tested-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1368497347-9628-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-top.c')
-rw-r--r--tools/perf/builtin-top.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index df9e06a..81adcaf 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -70,10 +70,11 @@
static volatile int done;
+#define HEADER_LINE_NR 5
+
static void perf_top__update_print_entries(struct perf_top *top)
{
- if (top->print_entries > 9)
- top->print_entries -= 9;
+ top->print_entries = top->winsize.ws_row - HEADER_LINE_NR;
}
static void perf_top__sig_winch(int sig __maybe_unused,
@@ -82,13 +83,6 @@ static void perf_top__sig_winch(int sig __maybe_unused,
struct perf_top *top = arg;
get_term_dimensions(&top->winsize);
- if (!top->print_entries
- || (top->print_entries+4) > top->winsize.ws_row) {
- top->print_entries = top->winsize.ws_row;
- } else {
- top->print_entries += 4;
- top->winsize.ws_row = top->print_entries;
- }
perf_top__update_print_entries(top);
}
@@ -296,10 +290,10 @@ static void perf_top__print_sym_table(struct perf_top *top)
top->hide_user_symbols,
top->hide_kernel_symbols);
hists__output_recalc_col_len(&top->sym_evsel->hists,
- top->winsize.ws_row - 3);
+ top->print_entries - printed);
putchar('\n');
hists__fprintf(&top->sym_evsel->hists, false,
- top->winsize.ws_row - 4 - printed, win_width, stdout);
+ top->print_entries - printed, win_width, stdout);
}
static void prompt_integer(int *target, const char *msg)
@@ -477,7 +471,6 @@ static bool perf_top__handle_keypress(struct perf_top *top, int c)
perf_top__sig_winch(SIGWINCH, NULL, top);
sigaction(SIGWINCH, &act, NULL);
} else {
- perf_top__sig_winch(SIGWINCH, NULL, top);
signal(SIGWINCH, SIG_DFL);
}
break;
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