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[209.132.180.67]) by mx.google.com with ESMTP id s38si4580219pga.38.2018.12.14.12.45.23; Fri, 14 Dec 2018 12:45:40 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730973AbeLNUoG (ORCPT + 99 others); Fri, 14 Dec 2018 15:44:06 -0500 Received: from terminus.zytor.com ([198.137.202.136]:60059 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730713AbeLNUoG (ORCPT ); Fri, 14 Dec 2018 15:44:06 -0500 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id wBEKhcbo1456718 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 14 Dec 2018 12:43:38 -0800 Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id wBEKhclm1456715; Fri, 14 Dec 2018 12:43:38 -0800 Date: Fri, 14 Dec 2018 12:43:38 -0800 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: tip-bot for Mark Drayton Message-ID: Cc: peterz@infradead.org, acme@redhat.com, tglx@linutronix.de, songliubraving@fb.com, mbd@fb.com, alexander.shishkin@linux.intel.com, hpa@zytor.com, namhyung@kernel.org, linux-kernel@vger.kernel.org, mingo@kernel.org, jolsa@redhat.com Reply-To: peterz@infradead.org, tglx@linutronix.de, acme@redhat.com, songliubraving@fb.com, alexander.shishkin@linux.intel.com, hpa@zytor.com, mingo@kernel.org, jolsa@redhat.com, namhyung@kernel.org, linux-kernel@vger.kernel.org, mbd@fb.com In-Reply-To: <20181204203420.1683114-1-mbd@fb.com> References: <20181204203420.1683114-1-mbd@fb.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf tools: Allow specifying proc-map-timeout in config file Git-Commit-ID: 0e932e6cd07aa5a8f1a9bd20a4e538106d08c28d X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Spam-Status: No, score=-1.7 required=5.0 tests=ALL_TRUSTED,BAYES_00, DATE_IN_FUTURE_96_Q autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on terminus.zytor.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 0e932e6cd07aa5a8f1a9bd20a4e538106d08c28d Gitweb: https://git.kernel.org/tip/0e932e6cd07aa5a8f1a9bd20a4e538106d08c28d Author: Mark Drayton AuthorDate: Tue, 4 Dec 2018 12:34:20 -0800 Committer: Arnaldo Carvalho de Melo CommitDate: Thu, 6 Dec 2018 14:12:31 -0300 perf tools: Allow specifying proc-map-timeout in config file The default timeout of 500ms for parsing /proc//maps files is too short for profiling many of our services. This can be overridden by passing --proc-map-timeout to the relevant command but it'd be nice to globally increase our default value. This patch permits setting a different default with the core.proc-map-timeout config file parameter. Signed-off-by: Mark Drayton Acked-by: Song Liu Acked-by: Namhyung Kim Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20181204203420.1683114-1-mbd@fb.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-config.txt | 6 ++++++ tools/perf/builtin-kvm.c | 6 ++---- tools/perf/builtin-record.c | 8 +++----- tools/perf/builtin-top.c | 4 +--- tools/perf/builtin-trace.c | 5 ++--- tools/perf/perf.h | 1 - tools/perf/tests/code-reading.c | 2 +- tools/perf/tests/dwarf-unwind.c | 2 +- tools/perf/tests/mmap-thread-lookup.c | 4 ++-- tools/perf/util/config.c | 4 ++++ tools/perf/util/event.c | 32 +++++++++++++------------------- tools/perf/util/event.h | 8 +++----- tools/perf/util/machine.c | 4 +--- tools/perf/util/machine.h | 3 --- 14 files changed, 39 insertions(+), 50 deletions(-) diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index 32f4a898e3f2..661b1fb3f8ba 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -199,6 +199,12 @@ colors.*:: Colors for headers in the output of a sub-commands (top, report). Default values are 'white', 'blue'. +core.*:: + core.proc-map-timeout:: + Sets a timeout (in milliseconds) for parsing /proc//maps files. + Can be overridden by the --proc-map-timeout option on supported + subcommands. The default timeout is 500ms. + tui.*, gtk.*:: Subcommands that can be configured here are 'top', 'report' and 'annotate'. These values are booleans, for example: diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 2b1ef704169f..3d4cbc4e87c7 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -1364,7 +1364,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, "show events other than" " HLT (x86 only) or Wait state (s390 only)" " that take longer than duration usecs"), - OPT_UINTEGER(0, "proc-map-timeout", &kvm->opts.proc_map_timeout, + OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, "per thread proc mmap processing timeout in ms"), OPT_END() }; @@ -1394,7 +1394,6 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, kvm->opts.target.uses_mmap = false; kvm->opts.target.uid_str = NULL; kvm->opts.target.uid = UINT_MAX; - kvm->opts.proc_map_timeout = 500; symbol__init(NULL); disable_buildid_cache(); @@ -1453,8 +1452,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, perf_session__set_id_hdr_size(kvm->session); ordered_events__set_copy_on_queue(&kvm->session->ordered_events, true); machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target, - kvm->evlist->threads, false, - kvm->opts.proc_map_timeout, 1); + kvm->evlist->threads, false, 1); err = kvm_live_open_events(kvm); if (err) goto out; diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 4736dc96c4ca..882285fb9f64 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -867,8 +867,7 @@ static int record__synthesize_workload(struct record *rec, bool tail) err = perf_event__synthesize_thread_map(&rec->tool, thread_map, process_synthesized_event, &rec->session->machines.host, - rec->opts.sample_address, - rec->opts.proc_map_timeout); + rec->opts.sample_address); thread_map__put(thread_map); return err; } @@ -1085,7 +1084,7 @@ static int record__synthesize(struct record *rec, bool tail) err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads, process_synthesized_event, opts->sample_address, - opts->proc_map_timeout, 1); + 1); out: return err; } @@ -1783,7 +1782,6 @@ static struct record record = { .uses_mmap = true, .default_per_cpu = true, }, - .proc_map_timeout = 500, }, .tool = { .sample = process_sample_event, @@ -1913,7 +1911,7 @@ static struct option __record_options[] = { parse_clockid), OPT_STRING_OPTARG('S', "snapshot", &record.opts.auxtrace_snapshot_opts, "opts", "AUX area tracing Snapshot Mode", ""), - OPT_UINTEGER(0, "proc-map-timeout", &record.opts.proc_map_timeout, + OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, "per thread proc mmap processing timeout in ms"), OPT_BOOLEAN(0, "namespaces", &record.opts.record_namespaces, "Record namespaces events"), diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index c59a3eb0d697..1beb3e360521 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1096,7 +1096,6 @@ static int __cmd_top(struct perf_top *top) machine__synthesize_threads(&top->session->machines.host, &opts->target, top->evlist->threads, false, - opts->proc_map_timeout, top->nr_threads_synthesize); if (top->nr_threads_synthesize > 1) @@ -1256,7 +1255,6 @@ int cmd_top(int argc, const char **argv) .target = { .uses_mmap = true, }, - .proc_map_timeout = 500, /* * FIXME: This will lose PERF_RECORD_MMAP and other metadata * when we pause, fix that and reenable. Probably using a @@ -1369,7 +1367,7 @@ int cmd_top(int argc, const char **argv) OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, "width[,width...]", "don't try to adjust column width, use these fixed values"), - OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, + OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, "per thread proc mmap processing timeout in ms"), OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, "branch any", "sample any taken branches", diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index a6aa4589ad50..2a347ed7bdf4 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1264,7 +1264,7 @@ static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target, evlist->threads, trace__tool_process, false, - trace->opts.proc_map_timeout, 1); + 1); out: if (err) symbol__exit(); @@ -3393,7 +3393,6 @@ int cmd_trace(int argc, const char **argv) .user_interval = ULLONG_MAX, .no_buffering = true, .mmap_pages = UINT_MAX, - .proc_map_timeout = 500, }, .output = stderr, .show_comm = true, @@ -3464,7 +3463,7 @@ int cmd_trace(int argc, const char **argv) "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), OPT_BOOLEAN(0, "print-sample", &trace.print_sample, "print the PERF_RECORD_SAMPLE PERF_SAMPLE_ info, for debugging"), - OPT_UINTEGER(0, "proc-map-timeout", &trace.opts.proc_map_timeout, + OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, "per thread proc mmap processing timeout in ms"), OPT_CALLBACK('G', "cgroup", &trace, "name", "monitor event in cgroup name only", trace__parse_cgroups), diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 4d40baa45a5f..388c6dd128b8 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -82,7 +82,6 @@ struct record_opts { bool use_clockid; clockid_t clockid; u64 clockid_res_ns; - unsigned int proc_map_timeout; int nr_cblocks; }; diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c index 6b049f3f5cf4..dbf2c69944d2 100644 --- a/tools/perf/tests/code-reading.c +++ b/tools/perf/tests/code-reading.c @@ -599,7 +599,7 @@ static int do_test_code_reading(bool try_kcore) } ret = perf_event__synthesize_thread_map(NULL, threads, - perf_event__process, machine, false, 500); + perf_event__process, machine, false); if (ret < 0) { pr_debug("perf_event__synthesize_thread_map failed\n"); goto out_err; diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c index 2f008067d989..7c8d2e422401 100644 --- a/tools/perf/tests/dwarf-unwind.c +++ b/tools/perf/tests/dwarf-unwind.c @@ -34,7 +34,7 @@ static int init_live_machine(struct machine *machine) pid_t pid = getpid(); return perf_event__synthesize_mmap_events(NULL, &event, pid, pid, - mmap_handler, machine, true, 500); + mmap_handler, machine, true); } /* diff --git a/tools/perf/tests/mmap-thread-lookup.c b/tools/perf/tests/mmap-thread-lookup.c index b1af2499a3c9..5ede9b561d32 100644 --- a/tools/perf/tests/mmap-thread-lookup.c +++ b/tools/perf/tests/mmap-thread-lookup.c @@ -132,7 +132,7 @@ static int synth_all(struct machine *machine) { return perf_event__synthesize_threads(NULL, perf_event__process, - machine, 0, 500, 1); + machine, 0, 1); } static int synth_process(struct machine *machine) @@ -144,7 +144,7 @@ static int synth_process(struct machine *machine) err = perf_event__synthesize_thread_map(NULL, map, perf_event__process, - machine, 0, 500); + machine, 0); thread_map__put(map); return err; diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c index 5ac157056cdf..3beb4cf44c31 100644 --- a/tools/perf/util/config.c +++ b/tools/perf/util/config.c @@ -14,6 +14,7 @@ #include "util.h" #include "cache.h" #include +#include "util/event.h" /* proc_map_timeout */ #include "util/hist.h" /* perf_hist_config */ #include "util/llvm-utils.h" /* perf_llvm_config */ #include "config.h" @@ -419,6 +420,9 @@ static int perf_buildid_config(const char *var, const char *value) static int perf_default_core_config(const char *var __maybe_unused, const char *value __maybe_unused) { + if (!strcmp(var, "core.proc-map-timeout")) + proc_map_timeout = strtoul(value, NULL, 10); + /* Add other config variables here. */ return 0; } diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 24493200cf80..937a5a4f71cc 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -25,6 +25,8 @@ #include "asm/bug.h" #include "stat.h" +#define DEFAULT_PROC_MAP_PARSE_TIMEOUT 500 + static const char *perf_event__names[] = { [0] = "TOTAL", [PERF_RECORD_MMAP] = "MMAP", @@ -72,6 +74,8 @@ static const char *perf_ns__names[] = { [CGROUP_NS_INDEX] = "cgroup", }; +unsigned int proc_map_timeout = DEFAULT_PROC_MAP_PARSE_TIMEOUT; + const char *perf_event__name(unsigned int id) { if (id >= ARRAY_SIZE(perf_event__names)) @@ -323,8 +327,7 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool, pid_t pid, pid_t tgid, perf_event__handler_t process, struct machine *machine, - bool mmap_data, - unsigned int proc_map_timeout) + bool mmap_data) { char filename[PATH_MAX]; FILE *fp; @@ -521,8 +524,7 @@ static int __event__synthesize_thread(union perf_event *comm_event, perf_event__handler_t process, struct perf_tool *tool, struct machine *machine, - bool mmap_data, - unsigned int proc_map_timeout) + bool mmap_data) { char filename[PATH_MAX]; DIR *tasks; @@ -548,8 +550,7 @@ static int __event__synthesize_thread(union perf_event *comm_event, */ if (pid == tgid && perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, - process, machine, mmap_data, - proc_map_timeout)) + process, machine, mmap_data)) return -1; return 0; @@ -598,7 +599,7 @@ static int __event__synthesize_thread(union perf_event *comm_event, if (_pid == pid) { /* process the parent's maps too */ rc = perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid, - process, machine, mmap_data, proc_map_timeout); + process, machine, mmap_data); if (rc) break; } @@ -612,8 +613,7 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool, struct thread_map *threads, perf_event__handler_t process, struct machine *machine, - bool mmap_data, - unsigned int proc_map_timeout) + bool mmap_data) { union perf_event *comm_event, *mmap_event, *fork_event; union perf_event *namespaces_event; @@ -643,7 +643,7 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool, fork_event, namespaces_event, thread_map__pid(threads, thread), 0, process, tool, machine, - mmap_data, proc_map_timeout)) { + mmap_data)) { err = -1; break; } @@ -669,7 +669,7 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool, fork_event, namespaces_event, comm_event->comm.pid, 0, process, tool, machine, - mmap_data, proc_map_timeout)) { + mmap_data)) { err = -1; break; } @@ -690,7 +690,6 @@ static int __perf_event__synthesize_threads(struct perf_tool *tool, perf_event__handler_t process, struct machine *machine, bool mmap_data, - unsigned int proc_map_timeout, struct dirent **dirent, int start, int num) @@ -734,8 +733,7 @@ static int __perf_event__synthesize_threads(struct perf_tool *tool, */ __event__synthesize_thread(comm_event, mmap_event, fork_event, namespaces_event, pid, 1, process, - tool, machine, mmap_data, - proc_map_timeout); + tool, machine, mmap_data); } err = 0; @@ -755,7 +753,6 @@ struct synthesize_threads_arg { perf_event__handler_t process; struct machine *machine; bool mmap_data; - unsigned int proc_map_timeout; struct dirent **dirent; int num; int start; @@ -767,7 +764,7 @@ static void *synthesize_threads_worker(void *arg) __perf_event__synthesize_threads(args->tool, args->process, args->machine, args->mmap_data, - args->proc_map_timeout, args->dirent, + args->dirent, args->start, args->num); return NULL; } @@ -776,7 +773,6 @@ int perf_event__synthesize_threads(struct perf_tool *tool, perf_event__handler_t process, struct machine *machine, bool mmap_data, - unsigned int proc_map_timeout, unsigned int nr_threads_synthesize) { struct synthesize_threads_arg *args = NULL; @@ -806,7 +802,6 @@ int perf_event__synthesize_threads(struct perf_tool *tool, if (thread_nr <= 1) { err = __perf_event__synthesize_threads(tool, process, machine, mmap_data, - proc_map_timeout, dirent, base, n); goto free_dirent; } @@ -828,7 +823,6 @@ int perf_event__synthesize_threads(struct perf_tool *tool, args[i].process = process; args[i].machine = machine; args[i].mmap_data = mmap_data; - args[i].proc_map_timeout = proc_map_timeout; args[i].dirent = dirent; } for (i = 0; i < m; i++) { diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index bfa60bcafbde..eb95f3384958 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -669,8 +669,7 @@ typedef int (*perf_event__handler_t)(struct perf_tool *tool, int perf_event__synthesize_thread_map(struct perf_tool *tool, struct thread_map *threads, perf_event__handler_t process, - struct machine *machine, bool mmap_data, - unsigned int proc_map_timeout); + struct machine *machine, bool mmap_data); int perf_event__synthesize_thread_map2(struct perf_tool *tool, struct thread_map *threads, perf_event__handler_t process, @@ -682,7 +681,6 @@ int perf_event__synthesize_cpu_map(struct perf_tool *tool, int perf_event__synthesize_threads(struct perf_tool *tool, perf_event__handler_t process, struct machine *machine, bool mmap_data, - unsigned int proc_map_timeout, unsigned int nr_threads_synthesize); int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, perf_event__handler_t process, @@ -797,8 +795,7 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool, pid_t pid, pid_t tgid, perf_event__handler_t process, struct machine *machine, - bool mmap_data, - unsigned int proc_map_timeout); + bool mmap_data); int perf_event__synthesize_extra_kmaps(struct perf_tool *tool, perf_event__handler_t process, @@ -829,5 +826,6 @@ int perf_event_paranoid(void); extern int sysctl_perf_event_max_stack; extern int sysctl_perf_event_max_contexts_per_stack; +extern unsigned int proc_map_timeout; #endif /* __PERF_RECORD_H */ diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index d1309201c1d2..6fcb3bce0442 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -2493,15 +2493,13 @@ int machines__for_each_thread(struct machines *machines, int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool, struct target *target, struct thread_map *threads, perf_event__handler_t process, bool data_mmap, - unsigned int proc_map_timeout, unsigned int nr_threads_synthesize) { if (target__has_task(target)) - return perf_event__synthesize_thread_map(tool, threads, process, machine, data_mmap, proc_map_timeout); + return perf_event__synthesize_thread_map(tool, threads, process, machine, data_mmap); else if (target__has_cpu(target)) return perf_event__synthesize_threads(tool, process, machine, data_mmap, - proc_map_timeout, nr_threads_synthesize); /* command specified */ return 0; diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index ebde3ea70225..a5d1da60f751 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -250,17 +250,14 @@ int machines__for_each_thread(struct machines *machines, int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool, struct target *target, struct thread_map *threads, perf_event__handler_t process, bool data_mmap, - unsigned int proc_map_timeout, unsigned int nr_threads_synthesize); static inline int machine__synthesize_threads(struct machine *machine, struct target *target, struct thread_map *threads, bool data_mmap, - unsigned int proc_map_timeout, unsigned int nr_threads_synthesize) { return __machine__synthesize_threads(machine, NULL, target, threads, perf_event__process, data_mmap, - proc_map_timeout, nr_threads_synthesize); }