[PATCH 13/52] perf c2c report: Add 'dcacheline' dimension key

Arnaldo Carvalho de Melo
2016-10-20T15:14:34Z

It displays cacheline address as hex number.

Using c2c wrapper to standard 'dcacheline' object to defined own header
and simple (just address) cacheline output.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-21-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-c2c.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 78addc42c9e5..3a3e67f6e772 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1,5 +1,6 @@
#include <linux/compiler.h>
#include <linux/kernel.h>
+#include <linux/stringify.h>
#include "util.h"
#include "debug.h"
#include "builtin.h"
@@ -7,6 +8,7 @@
#include "mem-events.h"
#include "session.h"
#include "hist.h"
+#include "sort.h"
#include "tool.h"
#include "data.h"
#include "sort.h"
@@ -273,6 +275,32 @@ static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
}

+#define HEX_STR(__s, __v) \
+({ \
+ scnprintf(__s, sizeof(__s), "0x%" PRIx64, __v); \
+ __s; \
+})
+
+static int64_t
+dcacheline_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+ struct hist_entry *left, struct hist_entry *right)
+{
+ return sort__dcacheline_cmp(left, right);
+}
+
+static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+ struct hist_entry *he)
+{
+ uint64_t addr = 0;
+ int width = c2c_width(fmt, hpp, he->hists);
+ char buf[20];
+
+ if (he->mem_info)
+ addr = cl_address(he->mem_info->daddr.addr);
+
+ return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -308,7 +336,16 @@ static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
}, \
}

+static struct c2c_dimension dim_dcacheline = {
+ .header = HEADER_LOW("Cacheline"),
+ .name = "dcacheline",
+ .cmp = dcacheline_cmp,
+ .entry = dcacheline_entry,
+ .width = 18,
+};
+
static struct c2c_dimension *dimensions[] = {
+ &dim_dcacheline,
NULL,
};

--
2.7.4