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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-07-21 17:58:25 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-07-27 11:24:31 -0300
commit06daaaba7c211ca6a8227b9a54dbc86dd837f034 (patch)
treea05215f48fd55b8afe4ada29fb4de623372845c8 /tools/perf
parentb61b55ed995fd2765cd4ec0b22f0348dee272070 (diff)
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perf hist: Introduce routine to measure lenght of formatted entry
Will be used to figure out the window width needed in the new tree widget. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/hist.c27
-rw-r--r--tools/perf/util/hist.h3
2 files changed, 30 insertions, 0 deletions
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 0bc67900352..f93095ffaab 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -850,6 +850,33 @@ print_entries:
return ret;
}
+/*
+ * See hists__fprintf to match the column widths
+ */
+unsigned int hists__sort_list_width(struct hists *self)
+{
+ struct sort_entry *se;
+ int ret = 9; /* total % */
+
+ if (symbol_conf.show_cpu_utilization) {
+ ret += 7; /* count_sys % */
+ ret += 6; /* count_us % */
+ if (perf_guest) {
+ ret += 13; /* count_guest_sys % */
+ ret += 12; /* count_guest_us % */
+ }
+ }
+
+ if (symbol_conf.show_nr_samples)
+ ret += 11;
+
+ list_for_each_entry(se, &hist_entry__sort_list, list)
+ if (!se->elide)
+ ret += 2 + hists__col_len(self, se->se_width_idx);
+
+ return ret;
+}
+
static void hists__remove_entry_filter(struct hists *self, struct hist_entry *h,
enum hist_filter filter)
{
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 92962b2f579..65a48db46a2 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -141,4 +141,7 @@ int hist_entry__tui_annotate(struct hist_entry *self);
int hists__tui_browse_tree(struct rb_root *self, const char *help);
#endif
+
+unsigned int hists__sort_list_width(struct hists *self);
+
#endif /* __PERF_HIST_H */