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D57778.id182973.diff
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diff --git a/usr.sbin/pmc/cmd_pmc_info.cc b/usr.sbin/pmc/cmd_pmc_info.cc
new file mode 100644
--- /dev/null
+++ b/usr.sbin/pmc/cmd_pmc_info.cc
@@ -0,0 +1,186 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2026, Netflix, Inc.
+ *
+ * This software was developed by Ali Mashtizadeh under the sponsorship from
+ * Netflix, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/param.h>
+#include <sys/cpuset.h>
+#include <sys/event.h>
+#include <sys/queue.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/time.h>
+#include <sys/ttycom.h>
+#include <sys/user.h>
+#include <sys/wait.h>
+
+#include <assert.h>
+#include <curses.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <kvm.h>
+#include <libgen.h>
+#include <limits.h>
+#include <locale.h>
+#include <math.h>
+#include <pmc.h>
+#include <pmclog.h>
+#include <regex.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+#include "cmd_pmc.h"
+
+#include <iostream>
+#include <map>
+#include <set>
+#include <string>
+#include <unordered_map>
+#include <unordered_set>
+#include <vector>
+
+#include "display.hh"
+#include "view.hh"
+
+class info_view : public pmcview
+{
+public:
+ virtual void
+ callchain(struct pmclog_ev_callchain &p)
+ {
+ uint64_t eventid = pmcidtoeventid(p.pl_pmcid);
+
+ pmcinfo[eventid].count++;
+ }
+
+ virtual void
+ print()
+ {
+ title("PMC Info");
+
+ header("System Info");
+ printf("CPU Model: %s\n", cpumodel.c_str());
+ printf("OS Release: %s\n", osrelease.c_str());
+ printf("Build ID: %s\n", buildid.c_str());
+ printf("\n");
+
+ if (arch == PMC_ARCH_AMD64) {
+ header("CPUID");
+ for (auto &c : cpuid)
+ printf("0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ c.first, c.second.eax, c.second.ebx,
+ c.second.ecx, c.second.edx);
+ printf("\n");
+ }
+
+ header("PMC Info");
+ for (auto &p : extpmcinfo)
+ printf("%s\n", p.event.c_str());
+ printf("\n");
+
+ table t = table();
+ t.addcolumn("Counter", true);
+ t.addcolumn("Counts", true);
+
+ for (auto &p : pmcinfo) {
+ std::vector<field> r;
+
+ r.emplace_back(p.second.name);
+ r.emplace_back((int64_t)p.second.count);
+
+ t.addrow(r);
+ }
+
+ t.print();
+ }
+};
+
+static struct option longopts[] = {
+ PMCFILTER_LOPTS,
+ { NULL, 0, NULL, 0 }
+};
+
+static void
+usage(void)
+{
+ printf("Usage: pmc info [options] [pmclog]\n\n");
+ printf("Display a log summary\n\n");
+ printf("Options:\n");
+ PMCFILTER_PRINTOPTS();
+}
+
+int
+cmd_pmc_info(int argc, char **argv)
+{
+ struct pmcfilter filter = pmcfilter();
+ const char *logfile = "default.log";
+ int option, logfd;
+
+ while ((option = getopt_long(argc, argv, PMCFILTER_SOPTS "s:", longopts, NULL)) != -1) {
+ switch (option) {
+ PMCFILTER_CASE(filter);
+ case '?':
+ default:
+ usage();
+ }
+ }
+ argc -= optind;
+ argv += optind;
+ if (argc != 0 && argc != 1) {
+ usage();
+ exit(EX_USAGE);
+ }
+ if (argc == 1)
+ logfile = argv[0];
+
+ setup_screen();
+
+ if ((logfd = open(logfile, O_RDONLY)) < 0) {
+ errx(EX_OSERR, "ERROR: Cannot open \"%s\" for reading: %s.", logfile,
+ strerror(errno));
+ return (EX_NOINPUT);
+ }
+
+ info_view s = info_view();
+ s.setfilter(filter);
+ s.process(logfd);
+ s.print();
+
+ return (EX_OK);
+}
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