Commit c75540e3 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo

perf c2c report: Add dimension support

Adding bare bones of dimension support for c2c report.

Main interface functions are:

  c2c_hists__init
  c2c_hists__reinit

which re/initialize 'struct c2c_hists' object with sort/display entries
string, in a similar way that setup_sorting function does.

We overload the dimension to provide multi line header support for
sort/display entries.

Also we overload base 'struct perf_hpp_fmt' object with 'struct c2c_fmt'
to define c2c specific functions to deal with multi line headers and
spans.
Signed-off-by: default avatarJiri 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/1474558645-19956-14-git-send-email-jolsa@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 903a6f15
......@@ -10,8 +10,14 @@
#include "tool.h"
#include "data.h"
struct c2c_hists {
struct hists hists;
struct perf_hpp_list list;
};
struct perf_c2c {
struct perf_tool tool;
struct c2c_hists hists;
};
static struct perf_c2c c2c;
......@@ -28,6 +34,231 @@ static const char * const __usage_report[] = {
static const char * const *report_c2c_usage = __usage_report;
#define C2C_HEADER_MAX 2
struct c2c_header {
struct {
const char *text;
int span;
} line[C2C_HEADER_MAX];
};
struct c2c_dimension {
struct c2c_header header;
const char *name;
int width;
int64_t (*cmp)(struct perf_hpp_fmt *fmt,
struct hist_entry *, struct hist_entry *);
int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
struct hist_entry *he);
int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
struct hist_entry *he);
};
struct c2c_fmt {
struct perf_hpp_fmt fmt;
struct c2c_dimension *dim;
};
static int c2c_width(struct perf_hpp_fmt *fmt,
struct perf_hpp *hpp __maybe_unused,
struct hists *hists __maybe_unused)
{
struct c2c_fmt *c2c_fmt;
c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
return c2c_fmt->dim->width;
}
static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
struct hists *hists __maybe_unused, int line, int *span)
{
struct c2c_fmt *c2c_fmt;
struct c2c_dimension *dim;
int len = c2c_width(fmt, hpp, hists);
const char *text;
c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
dim = c2c_fmt->dim;
text = dim->header.line[line].text;
if (text == NULL)
text = "";
if (*span) {
(*span)--;
return 0;
} else {
*span = dim->header.line[line].span;
}
return scnprintf(hpp->buf, hpp->size, "%*s", len, text);
}
static struct c2c_dimension *dimensions[] = {
NULL,
};
static void fmt_free(struct perf_hpp_fmt *fmt)
{
struct c2c_fmt *c2c_fmt;
c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
free(c2c_fmt);
}
static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
{
struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt);
struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt);
return c2c_a->dim == c2c_b->dim;
}
static struct c2c_dimension *get_dimension(const char *name)
{
unsigned int i;
for (i = 0; dimensions[i]; i++) {
struct c2c_dimension *dim = dimensions[i];
if (!strcmp(dim->name, name))
return dim;
};
return NULL;
}
static struct c2c_fmt *get_format(const char *name)
{
struct c2c_dimension *dim = get_dimension(name);
struct c2c_fmt *c2c_fmt;
struct perf_hpp_fmt *fmt;
if (!dim)
return NULL;
c2c_fmt = zalloc(sizeof(*c2c_fmt));
if (!c2c_fmt)
return NULL;
c2c_fmt->dim = dim;
fmt = &c2c_fmt->fmt;
INIT_LIST_HEAD(&fmt->list);
INIT_LIST_HEAD(&fmt->sort_list);
fmt->cmp = dim->cmp;
fmt->sort = dim->cmp;
fmt->entry = dim->entry;
fmt->header = c2c_header;
fmt->width = c2c_width;
fmt->collapse = dim->cmp;
fmt->equal = fmt_equal;
fmt->free = fmt_free;
return c2c_fmt;
}
static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
{
struct c2c_fmt *c2c_fmt = get_format(name);
if (!c2c_fmt)
return -1;
perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt);
return 0;
}
static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
{
struct c2c_fmt *c2c_fmt = get_format(name);
if (!c2c_fmt)
return -1;
perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
return 0;
}
#define PARSE_LIST(_list, _fn) \
do { \
char *tmp, *tok; \
ret = 0; \
\
if (!_list) \
break; \
\
for (tok = strtok_r((char *)_list, ", ", &tmp); \
tok; tok = strtok_r(NULL, ", ", &tmp)) { \
ret = _fn(hpp_list, tok); \
if (ret == -EINVAL) { \
error("Invalid --fields key: `%s'", tok); \
break; \
} else if (ret == -ESRCH) { \
error("Unknown --fields key: `%s'", tok); \
break; \
} \
} \
} while (0)
static int hpp_list__parse(struct perf_hpp_list *hpp_list,
const char *output_,
const char *sort_)
{
char *output = output_ ? strdup(output_) : NULL;
char *sort = sort_ ? strdup(sort_) : NULL;
int ret;
PARSE_LIST(output, c2c_hists__init_output);
PARSE_LIST(sort, c2c_hists__init_sort);
/* copy sort keys to output fields */
perf_hpp__setup_output_field(hpp_list);
/*
* We dont need other sorting keys other than those
* we already specified. It also really slows down
* the processing a lot with big number of output
* fields, so switching this off for c2c.
*/
#if 0
/* and then copy output fields to sort keys */
perf_hpp__append_sort_keys(&hists->list);
#endif
free(output);
free(sort);
return ret;
}
static int c2c_hists__init(struct c2c_hists *hists,
const char *sort)
{
__hists__init(&hists->hists, &hists->list);
/*
* Initialize only with sort fields, we need to resort
* later anyway, and that's where we add output fields
* as well.
*/
perf_hpp_list__init(&hists->list);
return hpp_list__parse(&hists->list, NULL, sort);
}
__maybe_unused
static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
const char *output,
const char *sort)
{
perf_hpp__reset_output_field(&c2c_hists->list);
return hpp_list__parse(&c2c_hists->list, output, sort);
}
static int perf_c2c__report(int argc, const char **argv)
{
struct perf_session *session;
......@@ -52,6 +283,12 @@ static int perf_c2c__report(int argc, const char **argv)
file.path = input_name;
err = c2c_hists__init(&c2c.hists, "dcacheline");
if (err) {
pr_debug("Failed to initialize hists\n");
goto out;
}
session = perf_session__new(&file, 0, &c2c.tool);
if (session == NULL) {
pr_debug("No memory for session\n");
......
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