lkml.org 
[lkml]   [2016]   [Sep]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 23/61] perf c2c report: Add dcacheline dimension key
Date
Adding dcacheline dimension key support. It
displays cacheline address as hex number.

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

Link: http://lkml.kernel.org/n/tip-j5enppr8e7h27nskqhgq33lu@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-c2c.c | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index c21124e6bb63..060ee1050da9 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"
@@ -271,6 +273,33 @@ static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
}

+static char *hex_str(u64 val)
+{
+ static char buf[20];
+
+ snprintf(buf, 20, "0x%" PRIx64, val);
+ return buf;
+}
+
+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);
+
+ if (he->mem_info)
+ addr = cl_address(he->mem_info->daddr.addr);
+
+ return snprintf(hpp->buf, hpp->size, "%*s", width, hex_str(addr));
+}
+
#define HEADER_LOW(__h) \
{ \
.line[1] = { \
@@ -306,12 +335,21 @@ 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,
+};
+
#undef HEADER_LOW
#undef HEADER_BOTH
#undef HEADER_SPAN
#undef HEADER_SPAN_LOW

static struct c2c_dimension *dimensions[] = {
+ &dim_dcacheline,
NULL,
};

--
2.7.4
\
 
 \ /
  Last update: 2016-09-19 15:23    [W:1.218 / U:0.136 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site