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Commit 06daaaba authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent b61b55ed

tools/perf/util/hist.c

+27 −0
Original line number Diff line number Diff line
@@ -850,6 +850,33 @@ size_t hists__fprintf(struct hists *self, struct hists *pair, 
	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)

{

tools/perf/util/hist.h

+3 −0
Original line number Diff line number Diff line
@@ -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 */