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Groups > linux.kernel > #1287011
| From | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH perf/core 04/22] perf refcnt: refcnt shows summary per object |
| Date | 2015-12-09 03:30 +0100 |
| Message-ID | <qDCFZ-295-33@gated-at.bofh.it> (permalink) |
| References | <qDCwi-25G-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Report refcnt per object(class) summary numbers if
any leaks exist, not only the total number.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
---
tools/perf/util/refcnt.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/tools/perf/util/refcnt.c b/tools/perf/util/refcnt.c
index e83e9a8..5348406 100644
--- a/tools/perf/util/refcnt.c
+++ b/tools/perf/util/refcnt.c
@@ -157,8 +157,48 @@ static void pr_refcnt_object(struct refcnt_object *ref)
pr_refcnt_buffer(buf);
}
+#define REFCNT_STAT_NUM 16
+static struct refcnt_stat_entry {
+ int counter;
+ const char *name;
+} stat_entry[REFCNT_STAT_NUM] = { {.name = "(others)"}, };
+
+static struct refcnt_stat_entry *refcnt_stat__find_entry(const char *name)
+{
+ int i;
+
+ if (!name)
+ goto last;
+
+ for (i = 1; i < REFCNT_STAT_NUM; i++)
+ if (stat_entry[i].name) {
+ if (strcmp(stat_entry[i].name, name) == 0)
+ return &stat_entry[i];
+ } else {
+ stat_entry[i].name = name;
+ return &stat_entry[i];
+ }
+last:
+ /* Here, it shorts the slot, let it fold to others */
+ return &stat_entry[0];
+}
+
+static void pr_refcnt_stat(void)
+{
+ int i;
+
+ for (i = 1; i < REFCNT_STAT_NUM && stat_entry[i].name; i++)
+ pr_warning(" \"%s\" leaks %d objects\n",
+ stat_entry[i].name, stat_entry[i].counter);
+
+ if (stat_entry[0].counter)
+ pr_warning(" And others leak %d objects\n",
+ stat_entry[0].counter);
+}
+
static void __attribute__((destructor)) refcnt__dump_unreclaimed(void)
{
+ struct refcnt_stat_entry *ent;
struct refcnt_object *ref, *n;
int h, i = 0;
@@ -174,11 +214,15 @@ found:
pr_debug("==== [%d] ====\n", i);
pr_refcnt_object(ref);
}
+ ent = refcnt_stat__find_entry(ref->name);
+ if (ent)
+ ent->counter++;
refcnt_object__delete(ref);
i++;
}
pr_warning("REFCNT: Total %d objects are not reclaimed.\n", i);
+ pr_refcnt_stat();
if (!verbose)
pr_warning(" To see all backtraces, rerun with -v option\n");
}
--
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[PATCH perf/core 00/22] perf refcnt debugger API and fixes Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> - 2015-12-09 03:30 +0100
[PATCH perf/core 14/22] perf: Fix dso__load_sym to put dso Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> - 2015-12-09 03:30 +0100
Re: [PATCH perf/core 14/22] perf: Fix dso__load_sym to put dso Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-09 15:20 +0100
RE: [PATCH perf/core 14/22] perf: Fix dso__load_sym to put dso 平松雅巳 / HIRAMATU，MASAMI <masami.hiramatsu.pt@hitachi.com> - 2015-12-10 10:00 +0100
Re: [PATCH perf/core 14/22] perf: Fix dso__load_sym to put dso 'Arnaldo Carvalho de Melo' <acme@kernel.org> - 2015-12-10 20:30 +0100
[PATCH perf/core 20/22] perf: Fix maps__fixup_overlappings to put used maps Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> - 2015-12-09 03:30 +0100
Re: [PATCH perf/core 20/22] perf: Fix maps__fixup_overlappings to put used maps Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-09 16:20 +0100
[tip:perf/core] perf tools: Fix maps__fixup_overlappings to put used maps tip-bot for Masami Hiramatsu <tipbot@zytor.com> - 2015-12-10 09:20 +0100
[PATCH perf/core 04/22] perf refcnt: refcnt shows summary per object Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> - 2015-12-09 03:30 +0100
[PATCH perf/core 22/22] perf: Fix write_numa_topology to put cpu_map instead of free Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> - 2015-12-09 03:30 +0100
Re: [PATCH perf/core 22/22] perf: Fix write_numa_topology to put cpu_map instead of free Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-09 16:30 +0100
[tip:perf/core] perf tools: Fix write_numa_topology to put cpu_map instead of free tip-bot for Masami Hiramatsu <tipbot@zytor.com> - 2015-12-10 09:20 +0100
[PATCH perf/core 05/22] perf: make map to use refcnt Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> - 2015-12-09 03:30 +0100
[PATCH perf/core 17/22] perf: Fix __machine__addnew_vdso to put dso after add to dsos Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> - 2015-12-09 03:30 +0100
Re: [PATCH perf/core 17/22] perf: Fix __machine__addnew_vdso to put dso after add to dsos Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-09 15:40 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-09 14:50 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes Alexei Starovoitov <alexei.starovoitov@gmail.com> - 2015-12-10 04:40 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes Namhyung Kim <namhyung@kernel.org> - 2015-12-10 06:00 +0100
RE: [PATCH perf/core 00/22] perf refcnt debugger API and fixes 平松雅巳 / HIRAMATU，MASAMI <masami.hiramatsu.pt@hitachi.com> - 2015-12-10 09:40 +0100
RE: [PATCH perf/core 00/22] perf refcnt debugger API and fixes 平松雅巳 / HIRAMATU，MASAMI <masami.hiramatsu.pt@hitachi.com> - 2015-12-10 12:10 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes "Wangnan (F)" <wangnan0@huawei.com> - 2015-12-10 14:00 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes 'Arnaldo Carvalho de Melo' <acme@kernel.org> - 2015-12-10 16:20 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes "Wangnan (F)" <wangnan0@huawei.com> - 2015-12-11 03:00 +0100
RE: [PATCH perf/core 00/22] perf refcnt debugger API and fixes 平松雅巳 / HIRAMATU，MASAMI <masami.hiramatsu.pt@hitachi.com> - 2015-12-11 03:10 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes "Wangnan (F)" <wangnan0@huawei.com> - 2015-12-11 03:30 +0100
RE: [PATCH perf/core 00/22] perf refcnt debugger API and fixes 平松雅巳 / HIRAMATU，MASAMI <masami.hiramatsu.pt@hitachi.com> - 2015-12-11 03:20 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes "Wangnan (F)" <wangnan0@huawei.com> - 2015-12-11 03:50 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes "Wangnan (F)" <wangnan0@huawei.com> - 2015-12-11 04:00 +0100
RE: [PATCH perf/core 00/22] perf refcnt debugger API and fixes 平松雅巳 / HIRAMATU，MASAMI <masami.hiramatsu.pt@hitachi.com> - 2015-12-11 05:00 +0100
Re: [PATCH perf/core 00/22] perf refcnt debugger API and fixes Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-11 23:30 +0100
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