forked from Minki/linux
345dc0b45e
Moving diff related columns into diff command, because they are not used by any other command. Also moving the column entry functions under generic one with baseline as an exception. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-v58qfl75xkqojz54h1v5fy6p@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
963 lines
21 KiB
C
963 lines
21 KiB
C
/*
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* builtin-diff.c
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*
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* Builtin diff command: Analyze two perf.data input files, look up and read
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* DSOs and symbol information, sort them and produce a diff.
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*/
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#include "builtin.h"
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#include "util/debug.h"
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#include "util/event.h"
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#include "util/hist.h"
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#include "util/evsel.h"
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#include "util/evlist.h"
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#include "util/session.h"
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#include "util/tool.h"
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#include "util/sort.h"
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#include "util/symbol.h"
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#include "util/util.h"
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#include <stdlib.h>
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#include <math.h>
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/* Diff command specific HPP columns. */
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enum {
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PERF_HPP_DIFF__BASELINE,
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PERF_HPP_DIFF__PERIOD,
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PERF_HPP_DIFF__PERIOD_BASELINE,
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PERF_HPP_DIFF__DELTA,
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PERF_HPP_DIFF__RATIO,
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PERF_HPP_DIFF__WEIGHTED_DIFF,
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PERF_HPP_DIFF__FORMULA,
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PERF_HPP_DIFF__MAX_INDEX
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};
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struct diff_hpp_fmt {
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struct perf_hpp_fmt fmt;
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int idx;
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char *header;
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int header_width;
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};
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struct data__file {
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struct perf_session *session;
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const char *file;
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int idx;
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};
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static struct data__file *data__files;
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static int data__files_cnt;
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#define data__for_each_file_start(i, d, s) \
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for (i = s, d = &data__files[s]; \
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i < data__files_cnt; \
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i++, d = &data__files[i])
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#define data__for_each_file(i, d) data__for_each_file_start(i, d, 0)
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static char diff__default_sort_order[] = "dso,symbol";
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static bool force;
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static bool show_period;
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static bool show_formula;
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static bool show_baseline_only;
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static bool sort_compute;
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static s64 compute_wdiff_w1;
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static s64 compute_wdiff_w2;
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enum {
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COMPUTE_DELTA,
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COMPUTE_RATIO,
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COMPUTE_WEIGHTED_DIFF,
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COMPUTE_MAX,
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};
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const char *compute_names[COMPUTE_MAX] = {
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[COMPUTE_DELTA] = "delta",
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[COMPUTE_RATIO] = "ratio",
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[COMPUTE_WEIGHTED_DIFF] = "wdiff",
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};
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static int compute;
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static int compute_2_hpp[COMPUTE_MAX] = {
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[COMPUTE_DELTA] = PERF_HPP_DIFF__DELTA,
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[COMPUTE_RATIO] = PERF_HPP_DIFF__RATIO,
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[COMPUTE_WEIGHTED_DIFF] = PERF_HPP_DIFF__WEIGHTED_DIFF,
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};
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#define MAX_COL_WIDTH 70
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static struct header_column {
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const char *name;
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int width;
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} columns[PERF_HPP_DIFF__MAX_INDEX] = {
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[PERF_HPP_DIFF__BASELINE] = {
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.name = "Baseline",
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},
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[PERF_HPP_DIFF__PERIOD] = {
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.name = "Period",
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.width = 14,
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},
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[PERF_HPP_DIFF__PERIOD_BASELINE] = {
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.name = "Base period",
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.width = 14,
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},
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[PERF_HPP_DIFF__DELTA] = {
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.name = "Delta",
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.width = 7,
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},
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[PERF_HPP_DIFF__RATIO] = {
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.name = "Ratio",
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.width = 14,
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},
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[PERF_HPP_DIFF__WEIGHTED_DIFF] = {
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.name = "Weighted diff",
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.width = 14,
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},
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[PERF_HPP_DIFF__FORMULA] = {
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.name = "Formula",
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.width = MAX_COL_WIDTH,
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}
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};
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static int setup_compute_opt_wdiff(char *opt)
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{
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char *w1_str = opt;
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char *w2_str;
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int ret = -EINVAL;
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if (!opt)
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goto out;
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w2_str = strchr(opt, ',');
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if (!w2_str)
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goto out;
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*w2_str++ = 0x0;
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if (!*w2_str)
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goto out;
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compute_wdiff_w1 = strtol(w1_str, NULL, 10);
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compute_wdiff_w2 = strtol(w2_str, NULL, 10);
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if (!compute_wdiff_w1 || !compute_wdiff_w2)
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goto out;
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pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n",
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compute_wdiff_w1, compute_wdiff_w2);
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ret = 0;
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out:
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if (ret)
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pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n");
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return ret;
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}
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static int setup_compute_opt(char *opt)
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{
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if (compute == COMPUTE_WEIGHTED_DIFF)
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return setup_compute_opt_wdiff(opt);
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if (opt) {
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pr_err("Failed: extra option specified '%s'", opt);
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return -EINVAL;
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}
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return 0;
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}
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static int setup_compute(const struct option *opt, const char *str,
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int unset __maybe_unused)
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{
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int *cp = (int *) opt->value;
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char *cstr = (char *) str;
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char buf[50];
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unsigned i;
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char *option;
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if (!str) {
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*cp = COMPUTE_DELTA;
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return 0;
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}
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if (*str == '+') {
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sort_compute = true;
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cstr = (char *) ++str;
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if (!*str)
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return 0;
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}
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option = strchr(str, ':');
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if (option) {
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unsigned len = option++ - str;
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/*
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* The str data are not writeable, so we need
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* to use another buffer.
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*/
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/* No option value is longer. */
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if (len >= sizeof(buf))
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return -EINVAL;
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strncpy(buf, str, len);
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buf[len] = 0x0;
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cstr = buf;
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}
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for (i = 0; i < COMPUTE_MAX; i++)
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if (!strcmp(cstr, compute_names[i])) {
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*cp = i;
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return setup_compute_opt(option);
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}
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pr_err("Failed: '%s' is not computation method "
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"(use 'delta','ratio' or 'wdiff')\n", str);
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return -EINVAL;
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}
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double perf_diff__period_percent(struct hist_entry *he, u64 period)
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{
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u64 total = he->hists->stats.total_period;
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return (period * 100.0) / total;
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}
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double perf_diff__compute_delta(struct hist_entry *he, struct hist_entry *pair)
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{
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double old_percent = perf_diff__period_percent(he, he->stat.period);
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double new_percent = perf_diff__period_percent(pair, pair->stat.period);
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pair->diff.period_ratio_delta = new_percent - old_percent;
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pair->diff.computed = true;
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return pair->diff.period_ratio_delta;
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}
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double perf_diff__compute_ratio(struct hist_entry *he, struct hist_entry *pair)
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{
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double old_period = he->stat.period ?: 1;
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double new_period = pair->stat.period;
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pair->diff.computed = true;
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pair->diff.period_ratio = new_period / old_period;
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return pair->diff.period_ratio;
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}
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s64 perf_diff__compute_wdiff(struct hist_entry *he, struct hist_entry *pair)
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{
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u64 old_period = he->stat.period;
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u64 new_period = pair->stat.period;
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pair->diff.computed = true;
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pair->diff.wdiff = new_period * compute_wdiff_w2 -
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old_period * compute_wdiff_w1;
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return pair->diff.wdiff;
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}
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static int formula_delta(struct hist_entry *he, struct hist_entry *pair,
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char *buf, size_t size)
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{
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return scnprintf(buf, size,
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"(%" PRIu64 " * 100 / %" PRIu64 ") - "
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"(%" PRIu64 " * 100 / %" PRIu64 ")",
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pair->stat.period, pair->hists->stats.total_period,
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he->stat.period, he->hists->stats.total_period);
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}
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static int formula_ratio(struct hist_entry *he, struct hist_entry *pair,
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char *buf, size_t size)
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{
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double old_period = he->stat.period;
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double new_period = pair->stat.period;
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return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period);
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}
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static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair,
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char *buf, size_t size)
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{
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u64 old_period = he->stat.period;
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u64 new_period = pair->stat.period;
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return scnprintf(buf, size,
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"(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")",
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new_period, compute_wdiff_w2, old_period, compute_wdiff_w1);
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}
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int perf_diff__formula(struct hist_entry *he, struct hist_entry *pair,
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char *buf, size_t size)
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{
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switch (compute) {
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case COMPUTE_DELTA:
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return formula_delta(he, pair, buf, size);
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case COMPUTE_RATIO:
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return formula_ratio(he, pair, buf, size);
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case COMPUTE_WEIGHTED_DIFF:
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return formula_wdiff(he, pair, buf, size);
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default:
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BUG_ON(1);
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}
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return -1;
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}
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static int hists__add_entry(struct hists *self,
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struct addr_location *al, u64 period,
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u64 weight)
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{
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if (__hists__add_entry(self, al, NULL, period, weight) != NULL)
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return 0;
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return -ENOMEM;
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}
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static int diff__process_sample_event(struct perf_tool *tool __maybe_unused,
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union perf_event *event,
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struct perf_sample *sample,
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struct perf_evsel *evsel,
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struct machine *machine)
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{
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struct addr_location al;
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if (perf_event__preprocess_sample(event, machine, &al, sample, NULL) < 0) {
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pr_warning("problem processing %d event, skipping it.\n",
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event->header.type);
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return -1;
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}
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if (al.filtered)
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return 0;
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if (hists__add_entry(&evsel->hists, &al, sample->period, sample->weight)) {
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pr_warning("problem incrementing symbol period, skipping event\n");
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return -1;
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}
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evsel->hists.stats.total_period += sample->period;
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return 0;
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}
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static struct perf_tool tool = {
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.sample = diff__process_sample_event,
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.mmap = perf_event__process_mmap,
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.comm = perf_event__process_comm,
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.exit = perf_event__process_exit,
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.fork = perf_event__process_fork,
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.lost = perf_event__process_lost,
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.ordered_samples = true,
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.ordering_requires_timestamps = true,
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};
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static struct perf_evsel *evsel_match(struct perf_evsel *evsel,
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struct perf_evlist *evlist)
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{
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struct perf_evsel *e;
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list_for_each_entry(e, &evlist->entries, node)
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if (perf_evsel__match2(evsel, e))
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return e;
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return NULL;
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}
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static void perf_evlist__collapse_resort(struct perf_evlist *evlist)
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{
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struct perf_evsel *evsel;
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list_for_each_entry(evsel, &evlist->entries, node) {
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struct hists *hists = &evsel->hists;
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hists__collapse_resort(hists);
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}
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}
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static void hists__baseline_only(struct hists *hists)
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{
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struct rb_root *root;
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struct rb_node *next;
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if (sort__need_collapse)
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root = &hists->entries_collapsed;
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else
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root = hists->entries_in;
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next = rb_first(root);
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while (next != NULL) {
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struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in);
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next = rb_next(&he->rb_node_in);
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if (!hist_entry__next_pair(he)) {
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rb_erase(&he->rb_node_in, root);
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hist_entry__free(he);
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}
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}
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}
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static void hists__precompute(struct hists *hists)
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{
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struct rb_root *root;
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struct rb_node *next;
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if (sort__need_collapse)
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root = &hists->entries_collapsed;
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else
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root = hists->entries_in;
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next = rb_first(root);
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while (next != NULL) {
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struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in);
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struct hist_entry *pair = hist_entry__next_pair(he);
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next = rb_next(&he->rb_node_in);
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if (!pair)
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continue;
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switch (compute) {
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case COMPUTE_DELTA:
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perf_diff__compute_delta(he, pair);
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break;
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case COMPUTE_RATIO:
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perf_diff__compute_ratio(he, pair);
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break;
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case COMPUTE_WEIGHTED_DIFF:
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perf_diff__compute_wdiff(he, pair);
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break;
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default:
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BUG_ON(1);
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}
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}
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}
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static int64_t cmp_doubles(double l, double r)
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{
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if (l > r)
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return -1;
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else if (l < r)
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return 1;
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else
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return 0;
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}
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static int64_t
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hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right,
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int c)
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{
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switch (c) {
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case COMPUTE_DELTA:
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{
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double l = left->diff.period_ratio_delta;
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double r = right->diff.period_ratio_delta;
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return cmp_doubles(l, r);
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}
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case COMPUTE_RATIO:
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{
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double l = left->diff.period_ratio;
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double r = right->diff.period_ratio;
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return cmp_doubles(l, r);
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}
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case COMPUTE_WEIGHTED_DIFF:
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{
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s64 l = left->diff.wdiff;
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s64 r = right->diff.wdiff;
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return r - l;
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}
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default:
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BUG_ON(1);
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}
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return 0;
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}
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static void insert_hist_entry_by_compute(struct rb_root *root,
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struct hist_entry *he,
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int c)
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{
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struct rb_node **p = &root->rb_node;
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struct rb_node *parent = NULL;
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struct hist_entry *iter;
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while (*p != NULL) {
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parent = *p;
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iter = rb_entry(parent, struct hist_entry, rb_node);
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if (hist_entry__cmp_compute(he, iter, c) < 0)
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p = &(*p)->rb_left;
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else
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p = &(*p)->rb_right;
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}
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rb_link_node(&he->rb_node, parent, p);
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rb_insert_color(&he->rb_node, root);
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}
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static void hists__compute_resort(struct hists *hists)
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{
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struct rb_root *root;
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struct rb_node *next;
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if (sort__need_collapse)
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root = &hists->entries_collapsed;
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else
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root = hists->entries_in;
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hists->entries = RB_ROOT;
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next = rb_first(root);
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hists->nr_entries = 0;
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hists->stats.total_period = 0;
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hists__reset_col_len(hists);
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while (next != NULL) {
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struct hist_entry *he;
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he = rb_entry(next, struct hist_entry, rb_node_in);
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next = rb_next(&he->rb_node_in);
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insert_hist_entry_by_compute(&hists->entries, he, compute);
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hists__inc_nr_entries(hists, he);
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}
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}
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static void hists__process(struct hists *base, struct hists *new)
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{
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hists__match(base, new);
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if (show_baseline_only)
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hists__baseline_only(base);
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else
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hists__link(base, new);
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if (sort_compute) {
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hists__precompute(base);
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hists__compute_resort(base);
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} else {
|
|
hists__output_resort(base);
|
|
}
|
|
|
|
hists__fprintf(base, true, 0, 0, 0, stdout);
|
|
}
|
|
|
|
static void data__fprintf(void)
|
|
{
|
|
struct data__file *d;
|
|
int i;
|
|
|
|
fprintf(stdout, "# Data files:\n");
|
|
|
|
data__for_each_file(i, d)
|
|
fprintf(stdout, "# [%d] %s %s\n",
|
|
d->idx, d->file,
|
|
!d->idx ? "(Baseline)" : "");
|
|
|
|
fprintf(stdout, "#\n");
|
|
}
|
|
|
|
static void data_process(void)
|
|
{
|
|
struct perf_evlist *evlist_old = data__files[0].session->evlist;
|
|
struct perf_evlist *evlist_new = data__files[1].session->evlist;
|
|
struct perf_evsel *evsel_old;
|
|
bool first = true;
|
|
|
|
list_for_each_entry(evsel_old, &evlist_old->entries, node) {
|
|
struct perf_evsel *evsel_new;
|
|
|
|
evsel_new = evsel_match(evsel_old, evlist_new);
|
|
if (!evsel_new)
|
|
continue;
|
|
|
|
fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n",
|
|
perf_evsel__name(evsel_old));
|
|
|
|
first = false;
|
|
|
|
if (verbose)
|
|
data__fprintf();
|
|
|
|
hists__process(&evsel_old->hists, &evsel_new->hists);
|
|
}
|
|
}
|
|
|
|
static int __cmd_diff(void)
|
|
{
|
|
struct data__file *d;
|
|
int ret = -EINVAL, i;
|
|
|
|
data__for_each_file(i, d) {
|
|
d->session = perf_session__new(d->file, O_RDONLY, force,
|
|
false, &tool);
|
|
if (!d->session) {
|
|
pr_err("Failed to open %s\n", d->file);
|
|
ret = -ENOMEM;
|
|
goto out_delete;
|
|
}
|
|
|
|
ret = perf_session__process_events(d->session, &tool);
|
|
if (ret) {
|
|
pr_err("Failed to process %s\n", d->file);
|
|
goto out_delete;
|
|
}
|
|
|
|
perf_evlist__collapse_resort(d->session->evlist);
|
|
}
|
|
|
|
data_process();
|
|
|
|
out_delete:
|
|
data__for_each_file(i, d) {
|
|
if (d->session)
|
|
perf_session__delete(d->session);
|
|
}
|
|
|
|
free(data__files);
|
|
return ret;
|
|
}
|
|
|
|
static const char * const diff_usage[] = {
|
|
"perf diff [<options>] [old_file] [new_file]",
|
|
NULL,
|
|
};
|
|
|
|
static const struct option options[] = {
|
|
OPT_INCR('v', "verbose", &verbose,
|
|
"be more verbose (show symbol address, etc)"),
|
|
OPT_BOOLEAN('b', "baseline-only", &show_baseline_only,
|
|
"Show only items with match in baseline"),
|
|
OPT_CALLBACK('c', "compute", &compute,
|
|
"delta,ratio,wdiff:w1,w2 (default delta)",
|
|
"Entries differential computation selection",
|
|
setup_compute),
|
|
OPT_BOOLEAN('p', "period", &show_period,
|
|
"Show period values."),
|
|
OPT_BOOLEAN('F', "formula", &show_formula,
|
|
"Show formula."),
|
|
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
|
|
"dump raw trace in ASCII"),
|
|
OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
|
|
OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
|
|
"load module symbols - WARNING: use only with -k and LIVE kernel"),
|
|
OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
|
|
"only consider symbols in these dsos"),
|
|
OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
|
|
"only consider symbols in these comms"),
|
|
OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
|
|
"only consider these symbols"),
|
|
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
|
|
"sort by key(s): pid, comm, dso, symbol, parent"),
|
|
OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
|
|
"separator for columns, no spaces will be added between "
|
|
"columns '.' is reserved."),
|
|
OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
|
|
"Look for files with symbols relative to this directory"),
|
|
OPT_END()
|
|
};
|
|
|
|
static double baseline_percent(struct hist_entry *he)
|
|
{
|
|
struct hists *hists = he->hists;
|
|
return 100.0 * he->stat.period / hists->stats.total_period;
|
|
}
|
|
|
|
static int hpp__color_baseline(struct perf_hpp_fmt *fmt,
|
|
struct perf_hpp *hpp, struct hist_entry *he)
|
|
{
|
|
struct diff_hpp_fmt *dfmt =
|
|
container_of(fmt, struct diff_hpp_fmt, fmt);
|
|
double percent = baseline_percent(he);
|
|
char pfmt[20] = " ";
|
|
|
|
if (!he->dummy) {
|
|
scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1);
|
|
return percent_color_snprintf(hpp->buf, hpp->size,
|
|
pfmt, percent);
|
|
} else
|
|
return scnprintf(hpp->buf, hpp->size, "%*s",
|
|
dfmt->header_width, pfmt);
|
|
}
|
|
|
|
static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size)
|
|
{
|
|
double percent = baseline_percent(he);
|
|
const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%";
|
|
int ret = 0;
|
|
|
|
if (!he->dummy)
|
|
ret = scnprintf(buf, size, fmt, percent);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size)
|
|
{
|
|
switch (idx) {
|
|
case PERF_HPP_DIFF__PERIOD_BASELINE:
|
|
scnprintf(buf, size, "%" PRIu64, he->stat.period);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair,
|
|
int idx, char *buf, size_t size)
|
|
{
|
|
double diff;
|
|
double ratio;
|
|
s64 wdiff;
|
|
|
|
switch (idx) {
|
|
case PERF_HPP_DIFF__DELTA:
|
|
if (pair->diff.computed)
|
|
diff = pair->diff.period_ratio_delta;
|
|
else
|
|
diff = perf_diff__compute_delta(he, pair);
|
|
|
|
if (fabs(diff) >= 0.01)
|
|
scnprintf(buf, size, "%+4.2F%%", diff);
|
|
break;
|
|
|
|
case PERF_HPP_DIFF__RATIO:
|
|
/* No point for ratio number if we are dummy.. */
|
|
if (he->dummy)
|
|
break;
|
|
|
|
if (pair->diff.computed)
|
|
ratio = pair->diff.period_ratio;
|
|
else
|
|
ratio = perf_diff__compute_ratio(he, pair);
|
|
|
|
if (ratio > 0.0)
|
|
scnprintf(buf, size, "%14.6F", ratio);
|
|
break;
|
|
|
|
case PERF_HPP_DIFF__WEIGHTED_DIFF:
|
|
/* No point for wdiff number if we are dummy.. */
|
|
if (he->dummy)
|
|
break;
|
|
|
|
if (pair->diff.computed)
|
|
wdiff = pair->diff.wdiff;
|
|
else
|
|
wdiff = perf_diff__compute_wdiff(he, pair);
|
|
|
|
if (wdiff != 0)
|
|
scnprintf(buf, size, "%14ld", wdiff);
|
|
break;
|
|
|
|
case PERF_HPP_DIFF__FORMULA:
|
|
perf_diff__formula(he, pair, buf, size);
|
|
break;
|
|
|
|
case PERF_HPP_DIFF__PERIOD:
|
|
scnprintf(buf, size, "%" PRIu64, pair->stat.period);
|
|
break;
|
|
|
|
default:
|
|
BUG_ON(1);
|
|
};
|
|
}
|
|
|
|
static void
|
|
__hpp__entry_global(struct hist_entry *he, int idx, char *buf, size_t size)
|
|
{
|
|
struct hist_entry *pair = hist_entry__next_pair(he);
|
|
|
|
/* baseline is special */
|
|
if (idx == PERF_HPP_DIFF__BASELINE)
|
|
hpp__entry_baseline(he, buf, size);
|
|
else {
|
|
if (pair)
|
|
hpp__entry_pair(he, pair, idx, buf, size);
|
|
else
|
|
hpp__entry_unpair(he, idx, buf, size);
|
|
}
|
|
}
|
|
|
|
static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp,
|
|
struct hist_entry *he)
|
|
{
|
|
struct diff_hpp_fmt *dfmt =
|
|
container_of(_fmt, struct diff_hpp_fmt, fmt);
|
|
char buf[MAX_COL_WIDTH] = " ";
|
|
|
|
__hpp__entry_global(he, dfmt->idx, buf, MAX_COL_WIDTH);
|
|
|
|
if (symbol_conf.field_sep)
|
|
return scnprintf(hpp->buf, hpp->size, "%s", buf);
|
|
else
|
|
return scnprintf(hpp->buf, hpp->size, "%*s",
|
|
dfmt->header_width, buf);
|
|
}
|
|
|
|
static int hpp__header(struct perf_hpp_fmt *fmt,
|
|
struct perf_hpp *hpp)
|
|
{
|
|
struct diff_hpp_fmt *dfmt =
|
|
container_of(fmt, struct diff_hpp_fmt, fmt);
|
|
|
|
BUG_ON(!dfmt->header);
|
|
return scnprintf(hpp->buf, hpp->size, dfmt->header);
|
|
}
|
|
|
|
static int hpp__width(struct perf_hpp_fmt *fmt,
|
|
struct perf_hpp *hpp __maybe_unused)
|
|
{
|
|
struct diff_hpp_fmt *dfmt =
|
|
container_of(fmt, struct diff_hpp_fmt, fmt);
|
|
|
|
BUG_ON(dfmt->header_width <= 0);
|
|
return dfmt->header_width;
|
|
}
|
|
|
|
#define hpp__color_global hpp__entry_global
|
|
|
|
#define FMT(_i, _entry, _color) \
|
|
[_i] = { \
|
|
.fmt = { \
|
|
.header = hpp__header, \
|
|
.width = hpp__width, \
|
|
.entry = hpp__entry_ ## _entry, \
|
|
.color = hpp__color_ ## _color, \
|
|
}, \
|
|
.idx = _i, \
|
|
}
|
|
|
|
#define FMT_GLOBAL(_i) FMT(_i, global, global)
|
|
#define FMT_BASELINE(_i) FMT(_i, global, baseline)
|
|
|
|
static struct diff_hpp_fmt diff_fmt[] = {
|
|
FMT_BASELINE(PERF_HPP_DIFF__BASELINE),
|
|
FMT_GLOBAL(PERF_HPP_DIFF__PERIOD),
|
|
FMT_GLOBAL(PERF_HPP_DIFF__PERIOD_BASELINE),
|
|
FMT_GLOBAL(PERF_HPP_DIFF__DELTA),
|
|
FMT_GLOBAL(PERF_HPP_DIFF__RATIO),
|
|
FMT_GLOBAL(PERF_HPP_DIFF__WEIGHTED_DIFF),
|
|
FMT_GLOBAL(PERF_HPP_DIFF__FORMULA),
|
|
};
|
|
|
|
static void init_header(struct diff_hpp_fmt *dfmt)
|
|
{
|
|
#define MAX_HEADER_NAME 100
|
|
char buf_indent[MAX_HEADER_NAME];
|
|
char buf[MAX_HEADER_NAME];
|
|
const char *header = NULL;
|
|
int width = 0;
|
|
|
|
BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX);
|
|
header = columns[dfmt->idx].name;
|
|
width = columns[dfmt->idx].width;
|
|
|
|
/* Only our defined HPP fmts should appear here. */
|
|
BUG_ON(!header);
|
|
|
|
#define NAME (data__files_cnt > 2 ? buf : header)
|
|
dfmt->header_width = width;
|
|
width = (int) strlen(NAME);
|
|
if (dfmt->header_width < width)
|
|
dfmt->header_width = width;
|
|
|
|
scnprintf(buf_indent, MAX_HEADER_NAME, "%*s",
|
|
dfmt->header_width, NAME);
|
|
|
|
dfmt->header = strdup(buf_indent);
|
|
#undef MAX_HEADER_NAME
|
|
#undef NAME
|
|
}
|
|
|
|
static void column_enable(unsigned col)
|
|
{
|
|
struct diff_hpp_fmt *dfmt;
|
|
|
|
BUG_ON(col >= PERF_HPP_DIFF__MAX_INDEX);
|
|
dfmt = &diff_fmt[col];
|
|
init_header(dfmt);
|
|
perf_hpp__column_register(&dfmt->fmt);
|
|
}
|
|
|
|
static void ui_init(void)
|
|
{
|
|
/*
|
|
* Display baseline/delta/ratio/
|
|
* formula/periods columns.
|
|
*/
|
|
column_enable(PERF_HPP_DIFF__BASELINE);
|
|
column_enable(compute_2_hpp[compute]);
|
|
|
|
if (show_formula)
|
|
column_enable(PERF_HPP_DIFF__FORMULA);
|
|
|
|
if (show_period) {
|
|
column_enable(PERF_HPP_DIFF__PERIOD);
|
|
column_enable(PERF_HPP_DIFF__PERIOD_BASELINE);
|
|
}
|
|
}
|
|
|
|
static int data_init(int argc, const char **argv)
|
|
{
|
|
struct data__file *d;
|
|
static const char *defaults[] = {
|
|
"perf.data.old",
|
|
"perf.data",
|
|
};
|
|
int i;
|
|
|
|
data__files_cnt = 2;
|
|
|
|
if (argc) {
|
|
if (argc > 2)
|
|
usage_with_options(diff_usage, options);
|
|
if (argc == 2) {
|
|
defaults[0] = argv[0];
|
|
defaults[1] = argv[1];
|
|
} else
|
|
defaults[1] = argv[0];
|
|
} else if (symbol_conf.default_guest_vmlinux_name ||
|
|
symbol_conf.default_guest_kallsyms) {
|
|
defaults[0] = "perf.data.host";
|
|
defaults[1] = "perf.data.guest";
|
|
}
|
|
|
|
data__files = zalloc(sizeof(*data__files) * data__files_cnt);
|
|
if (!data__files)
|
|
return -ENOMEM;
|
|
|
|
data__for_each_file(i, d) {
|
|
d->file = defaults[i];
|
|
d->idx = i;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
|
|
{
|
|
sort_order = diff__default_sort_order;
|
|
argc = parse_options(argc, argv, options, diff_usage, 0);
|
|
|
|
if (symbol__init() < 0)
|
|
return -1;
|
|
|
|
if (data_init(argc, argv) < 0)
|
|
return -1;
|
|
|
|
ui_init();
|
|
|
|
if (setup_sorting() < 0)
|
|
usage_with_options(diff_usage, options);
|
|
|
|
setup_pager();
|
|
|
|
sort__setup_elide(NULL);
|
|
|
|
return __cmd_diff();
|
|
}
|