From abab5e7fcec16e526968f8a5448cd81c635705ce Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Sat, 27 Feb 2016 03:52:47 +0900 Subject: [PATCH] perf report: Update column width of dynamic entries The column width of dynamic entries is updated when comparing hist entries. However some unique entries can miss the chance to update. So move the update to output resort stage to make sure every entry will get called before display. To do that, abuse ->sort callback to update the width when the third argument is NULL. When resorting entries in normal path, it never be NULL so it should be fine IMHO. Before: # Overhead ptr / bytes_req / gfp_flags # .............. .......................................... # 37.50% 0xffff8803f7669400 37.50% 448 37.50% GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC 10.42% 0xffff8803f766be00 8.33% 96 8.33% GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC 2.08% 512 2.08% GFP_KERNEL|GFP_NOWARN|GFP_REPEAT|GFP <-- here After: # Overhead ptr / bytes_req / gfp_flags # .............. ..................................................... # 37.50% 0xffff8803f7669400 37.50% 448 37.50% GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC 10.42% 0xffff8803f766be00 8.33% 96 8.33% GFP_ATOMIC|GFP_NOWARN|GFP_NOMEMALLOC 2.08% 512 2.08% GFP_KERNEL|GFP_NOWARN|GFP_REPEAT|GFP_NOMEMALLOC Signed-off-by: Namhyung Kim Tested-by: Arnaldo Carvalho de Melo Acked-by: Jiri Olsa Cc: Andi Kleen Cc: David Ahern Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Wang Nan Link: http://lkml.kernel.org/r/1456512767-1164-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/hist.c | 11 +++++++++++ tools/perf/util/sort.c | 8 +++++--- 2 files changed, 16 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 9b3f582867d6..4b8b67bc0cd8 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -1371,6 +1371,10 @@ static void hierarchy_insert_output_entry(struct rb_root *root, rb_link_node(&he->rb_node, parent, p); rb_insert_color(&he->rb_node, root); + + /* update column width of dynamic entry */ + if (perf_hpp__is_dynamic_entry(he->fmt)) + he->fmt->sort(he->fmt, he, NULL); } static void hists__hierarchy_output_resort(struct hists *hists, @@ -1440,6 +1444,7 @@ static void __hists__insert_output_entry(struct rb_root *entries, struct rb_node **p = &entries->rb_node; struct rb_node *parent = NULL; struct hist_entry *iter; + struct perf_hpp_fmt *fmt; if (use_callchain) { if (callchain_param.mode == CHAIN_GRAPH_REL) { @@ -1466,6 +1471,12 @@ static void __hists__insert_output_entry(struct rb_root *entries, rb_link_node(&he->rb_node, parent, p); rb_insert_color(&he->rb_node, entries); + + perf_hpp_list__for_each_sort_list(&perf_hpp_list, fmt) { + if (perf_hpp__is_dynamic_entry(fmt) && + perf_hpp__defined_dynamic_entry(fmt, he->hists)) + fmt->sort(fmt, he, NULL); /* update column width */ + } } static void output_resort(struct hists *hists, struct ui_progress *prog, diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index d26c6b9fe348..5888bfe9a193 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -1816,6 +1816,11 @@ static int64_t __sort__hde_cmp(struct perf_hpp_fmt *fmt, hde = container_of(fmt, struct hpp_dynamic_entry, hpp); + if (b == NULL) { + update_dynamic_len(hde, a); + return 0; + } + field = hde->field; if (field->flags & FIELD_IS_DYNAMIC) { unsigned long long dyn; @@ -1830,9 +1835,6 @@ static int64_t __sort__hde_cmp(struct perf_hpp_fmt *fmt, } else { offset = field->offset; size = field->size; - - update_dynamic_len(hde, a); - update_dynamic_len(hde, b); } return memcmp(a->raw_data + offset, b->raw_data + offset, size); -- 2.20.1