The branch main has been updated by imp: URL: https://cgit.FreeBSD.org/src/commit/?id=3adde0e55d7c01018b0877e1407aede7e757ce04
commit 3adde0e55d7c01018b0877e1407aede7e757ce04 Author: Ali Mashtizadeh <[email protected]> AuthorDate: 2026-07-28 17:46:41 +0000 Commit: Warner Losh <[email protected]> CommitDate: 2026-07-28 19:27:45 +0000 pmc: pmc info command Prints the log header including machine, cpu and kernel details along with what counters were selected. Sponsored by: Netflix Reviewed by: adrian, imp Differential Revision: https://reviews.freebsd.org/D57778 --- usr.sbin/pmc/cmd_pmc_info.cc | 186 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 186 insertions(+) diff --git a/usr.sbin/pmc/cmd_pmc_info.cc b/usr.sbin/pmc/cmd_pmc_info.cc new file mode 100644 index 000000000000..4bff0240b774 --- /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); +}
