Commit-ID: d8b92400d3ba6bb9a310c42b7518a81eb90f83be
Gitweb: http://git.kernel.org/tip/d8b92400d3ba6bb9a310c42b7518a81eb90f83be
Author: Namhyung Kim <namhyung@xxxxxxxxxx>
AuthorDate: Thu, 25 Feb 2016 00:13:46 +0900
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 24 Feb 2016 20:21:14 -0300
perf hists browser: Align column header in hierarchy mode
Like in stdio, fit column header to hierarchy output. Merge column
headers with "/" as a separator.
Overhead Command / Shared Object / Symbol
...
+ 0.09% dwm
+ 0.06% emacs
- 0.05% perf
- 0.05% [kernel.vmlinux]
+ 0.03% [k] memcpy_orig
+ 0.01% [k] unmap_single_vma
+ 0.01% [k] smp_call_function_single
+ 0.00% [k] native_irq_return_iret
+ 0.00% [k] arch_trigger_all_cpu_backtrace_handler
+ 0.00% [k] native_write_msr_safe
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Acked-by: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1456326830-30456-15-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/ui/browsers/hists.c | 71 +++++++++++++++++++++++++++++++++++++++++-
1 file changed, 70 insertions(+), 1 deletion(-)
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 2bccf68..6bcd767 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1451,11 +1451,80 @@ static int hists_browser__scnprintf_headers(struct hist_browser *browser, char *
return ret;
}
+static int hists_browser__scnprintf_hierarchy_headers(struct hist_browser *browser, char *buf, size_t size)
+{
+ struct hists *hists = browser->hists;
+ struct perf_hpp dummy_hpp = {
+ .buf = buf,
+ .size = size,
+ };
+ struct perf_hpp_fmt *fmt;
+ size_t ret = 0;
+ int column = 0;
+ int nr_sort_keys = hists->hpp_list->nr_sort_keys;
+ bool first = true;
+
+ ret = scnprintf(buf, size, " ");
+ if (advance_hpp_check(&dummy_hpp, ret))
+ return ret;
+
+ hists__for_each_format(hists, fmt) {
+ if (column++ < browser->b.horiz_scroll)
+ continue;
+
+ if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
+ break;
+
+ ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));
+ if (advance_hpp_check(&dummy_hpp, ret))
+ break;
+
+ ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, " ");
+ if (advance_hpp_check(&dummy_hpp, ret))
+ break;
+ }
+
+ ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, "%*s",
+ (nr_sort_keys - 1) * HIERARCHY_INDENT, "");
+ if (advance_hpp_check(&dummy_hpp, ret))
+ return ret;
+
+ hists__for_each_format(hists, fmt) {
+ if (!perf_hpp__is_sort_entry(fmt) && !perf_hpp__is_dynamic_entry(fmt))
+ continue;
+ if (perf_hpp__should_skip(fmt, hists))
+ continue;
+
+ if (first) {
+ first = false;
+ } else {
+ ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, " / ");
+ if (advance_hpp_check(&dummy_hpp, ret))
+ break;
+ }
+
+ ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));
+ dummy_hpp.buf[ret] = '\0';
+ rtrim(dummy_hpp.buf);
+
+ ret = strlen(dummy_hpp.buf);
+ if (advance_hpp_check(&dummy_hpp, ret))
+ break;
+ }
+
+ return ret;
+}
+
static void hist_browser__show_headers(struct hist_browser *browser)
{
char headers[1024];
- hists_browser__scnprintf_headers(browser, headers, sizeof(headers));
+ if (symbol_conf.report_hierarchy)
+ hists_browser__scnprintf_hierarchy_headers(browser, headers,
+ sizeof(headers));
+ else
+ hists_browser__scnprintf_headers(browser, headers,
+ sizeof(headers));
ui_browser__gotorc(&browser->b, 0, 0);
ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);
ui_browser__write_nstring(&browser->b, headers, browser->b.width + 1);
--
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