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[2620:137:e000::1:20]) by mx.google.com with ESMTP id nu18-20020a17090b1b1200b0023d3fad2294si34096527pjb.10.2023.05.11.01.00.17; Thu, 11 May 2023 01:00:30 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237689AbjEKHxk (ORCPT + 99 others); Thu, 11 May 2023 03:53:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237380AbjEKHxc (ORCPT ); Thu, 11 May 2023 03:53:32 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 265742D7B; Thu, 11 May 2023 00:53:30 -0700 (PDT) Received: from kwepemm600003.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4QH3tS73xnzTk8w; Thu, 11 May 2023 15:48:48 +0800 (CST) Received: from localhost.localdomain (10.67.174.95) by kwepemm600003.china.huawei.com (7.193.23.202) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Thu, 11 May 2023 15:53:27 +0800 From: Yang Jihong To: , , , , , , , , , , , , CC: Subject: [PATCH v2 4/4] perf tools: Add printing perf_event_attr config symbol in perf_event_attr__fprintf() Date: Thu, 11 May 2023 07:51:54 +0000 Message-ID: <20230511075154.240163-5-yangjihong1@huawei.com> X-Mailer: git-send-email 2.30.GIT In-Reply-To: <20230511075154.240163-1-yangjihong1@huawei.com> References: <20230511075154.240163-1-yangjihong1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.67.174.95] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemm600003.china.huawei.com (7.193.23.202) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When printing perf_event_attr, always display perf_event_attr config and its symbol to improve the readability of debugging information. Before: # perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101,mem:0x0 -C 0 true ------------------------------------------------------------ perf_event_attr: size 136 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5 ------------------------------------------------------------ perf_event_attr: type 1 size 136 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6 ------------------------------------------------------------ perf_event_attr: type 2 size 136 config 0x143 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7 ------------------------------------------------------------ perf_event_attr: type 3 size 136 config 0x10005 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 9 ------------------------------------------------------------ perf_event_attr: type 4 size 136 config 0x101 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10 ------------------------------------------------------------ perf_event_attr: type 5 size 136 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 bp_type 3 { bp_len, config2 } 0x4 ------------------------------------------------------------ After: # perf --debug verbose=2 record -e cycles,cpu-clock,sched:sched_switch,branch-load-misses,r101,mem:0x0 -C 0 true ------------------------------------------------------------ perf_event_attr: type 0 (PERF_TYPE_HARDWARE) size 136 config 0 (PERF_COUNT_HW_CPU_CYCLES) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5 ------------------------------------------------------------ perf_event_attr: type 1 (PERF_TYPE_SOFTWARE) size 136 config 0 (PERF_COUNT_SW_CPU_CLOCK) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 6 ------------------------------------------------------------ perf_event_attr: type 2 (PERF_TYPE_TRACEPOINT) size 136 config 0x143 (sched:sched_switch) { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 7 ------------------------------------------------------------ perf_event_attr: type 3 (PERF_TYPE_HW_CACHE) size 136 config 0x10005 (PERF_COUNT_HW_CACHE_RESULT_MISS | PERF_COUNT_HW_CACHE_OP_READ | PERF_COUNT_HW_CACHE_BPU) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 9 ------------------------------------------------------------ perf_event_attr: type 4 (PERF_TYPE_RAW) size 136 config 0x101 { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID disabled 1 inherit 1 freq 1 sample_id_all 1 exclude_guest 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 10 ------------------------------------------------------------ perf_event_attr: type 5 (PERF_TYPE_BREAKPOINT) size 136 config 0 { sample_period, sample_freq } 1 sample_type IP|TID|TIME|CPU|IDENTIFIER read_format ID disabled 1 inherit 1 sample_id_all 1 exclude_guest 1 bp_type 3 { bp_len, config2 } 0x4 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 11 ------------------------------------------------------------ perf_event_attr: type 1 (PERF_TYPE_SOFTWARE) size 136 config 9 (PERF_COUNT_SW_DUMMY) { sample_period, sample_freq } 4000 sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER read_format ID inherit 1 mmap 1 comm 1 freq 1 task 1 sample_id_all 1 mmap2 1 comm_exec 1 ksymbol 1 bpf_event 1 ------------------------------------------------------------ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 12 Signed-off-by: Yang Jihong --- tools/perf/util/perf_event_attr_fprintf.c | 159 +++++++++++++++++++++- 1 file changed, 158 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/perf_event_attr_fprintf.c b/tools/perf/util/perf_event_attr_fprintf.c index cd0905d8cb7a..7730f0d7c28a 100644 --- a/tools/perf/util/perf_event_attr_fprintf.c +++ b/tools/perf/util/perf_event_attr_fprintf.c @@ -7,6 +7,11 @@ #include #include "util/evsel_fprintf.h" +#ifdef HAVE_LIBTRACEEVENT +#include // for free +#include "trace-event.h" +#endif + struct bit_names { int bit; const char *name; @@ -86,6 +91,85 @@ static const char *stringify_perf_type_id(u64 value) return NULL; } } + +static const char *stringify_perf_hw_id(u64 value) +{ + /* sync with enum perf_hw_id in perf_event.h */ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CPU_CYCLES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_INSTRUCTIONS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_REFERENCES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_MISSES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BRANCH_INSTRUCTIONS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BRANCH_MISSES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BUS_CYCLES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_STALLED_CYCLES_FRONTEND) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_STALLED_CYCLES_BACKEND) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_REF_CPU_CYCLES) + default: + return NULL; + } +} + +static const char *stringify_perf_hw_cache_id(u64 value) +{ + /* sync with enum perf_hw_cache_id in perf_event.h */ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_L1D) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_L1I) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_LL) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_DTLB) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_ITLB) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_BPU) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_NODE) + default: + return NULL; + } +} + +static const char *stringify_perf_hw_cache_op_id(u64 value) +{ + /* sync with enum perf_hw_cache_op_id in perf_event.h */ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_READ) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_WRITE) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_PREFETCH) + default: + return NULL; + } +} + +static const char *stringify_perf_hw_cache_op_result_id(u64 value) +{ + /* sync with enum perf_hw_cache_op_result_id in perf_event.h */ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_RESULT_ACCESS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_RESULT_MISS) + default: + return NULL; + } +} + +static const char *stringify_perf_sw_id(u64 value) +{ + /* sync with enum perf_sw_ids in perf_event.h */ + switch (value) { + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CPU_CLOCK) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_TASK_CLOCK) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CONTEXT_SWITCHES) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CPU_MIGRATIONS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS_MIN) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS_MAJ) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_ALIGNMENT_FAULTS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_EMULATION_FAULTS) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_DUMMY) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_BPF_OUTPUT) + ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CGROUP_SWITCHES) + default: + return NULL; + } +} #undef ENUM_ID_TO_STR_CASE static void __p_type_id(char *buf, size_t size, u64 value) @@ -98,6 +182,78 @@ static void __p_type_id(char *buf, size_t size, u64 value) snprintf(buf, size, "%"PRIu64" (%s)", value, str); } +static void __p_config_hw_id(char *buf, size_t size, u64 value) +{ + const char *str = stringify_perf_hw_id(value); + + if (str == NULL) + snprintf(buf, size, "%"PRIx64, value); + else + snprintf(buf, size, "%"PRIx64" (%s)", value, str); +} + +static void __p_config_sw_id(char *buf, size_t size, u64 value) +{ + const char *str = stringify_perf_sw_id(value); + + if (str == NULL) + snprintf(buf, size, "%"PRIx64, value); + else + snprintf(buf, size, "%"PRIx64" (%s)", value, str); +} + +static void __p_config_hw_cache_id(char *buf, size_t size, u64 value) +{ + const char *hw_cache_str = stringify_perf_hw_cache_id(value & 0xff); + const char *hw_cache_op_str = + stringify_perf_hw_cache_op_id((value & 0xff00) >> 8); + const char *hw_cache_op_result_str = + stringify_perf_hw_cache_op_result_id((value & 0xff0000) >> 16); + + if (hw_cache_str == NULL || hw_cache_op_str == NULL || + hw_cache_op_result_str == NULL) { + snprintf(buf, size, "%#"PRIx64, value); + } else { + snprintf(buf, size, "%#"PRIx64" (%s | %s | %s)", value, + hw_cache_op_result_str, hw_cache_op_str, hw_cache_str); + } +} + +#ifdef HAVE_LIBTRACEEVENT +static void __p_config_tracepoint_id(char *buf, size_t size, u64 value) +{ + char *str = tracepoint_id_to_name(value); + + if (str != NULL) { + snprintf(buf, size, "%#"PRIx64" (%s)", value, str); + free(str); + } else { + snprintf(buf, size, "%#"PRIx64, value); + } +} +#endif + +static void __p_config_id(char *buf, size_t size, u32 type, u64 value) +{ + switch (type) { + case PERF_TYPE_HARDWARE: + return __p_config_hw_id(buf, size, value); + case PERF_TYPE_SOFTWARE: + return __p_config_sw_id(buf, size, value); + case PERF_TYPE_HW_CACHE: + return __p_config_hw_cache_id(buf, size, value); + case PERF_TYPE_TRACEPOINT: +#ifdef HAVE_LIBTRACEEVENT + return __p_config_tracepoint_id(buf, size, value); +#endif + case PERF_TYPE_RAW: + case PERF_TYPE_BREAKPOINT: + default: + snprintf(buf, size, "%#"PRIx64, value); + return; + } +} + #define BUF_SIZE 1024 #define p_hex(val) snprintf(buf, BUF_SIZE, "%#"PRIx64, (uint64_t)(val)) @@ -107,6 +263,7 @@ static void __p_type_id(char *buf, size_t size, u64 value) #define p_branch_sample_type(val) __p_branch_sample_type(buf, BUF_SIZE, val) #define p_read_format(val) __p_read_format(buf, BUF_SIZE, val) #define p_type_id(val) __p_type_id(buf, BUF_SIZE, val) +#define p_config_id(val) __p_config_id(buf, BUF_SIZE, attr->type, val) #define PRINT_ATTRn(_n, _f, _p, _a) \ do { \ @@ -126,7 +283,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr, PRINT_ATTRn("type", type, p_type_id, true); PRINT_ATTRf(size, p_unsigned); - PRINT_ATTRf(config, p_hex); + PRINT_ATTRn("config", config, p_config_id, true); PRINT_ATTRn("{ sample_period, sample_freq }", sample_period, p_unsigned, false); PRINT_ATTRf(sample_type, p_sample_type); PRINT_ATTRf(read_format, p_read_format); -- 2.30.GIT