From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6CC1BC43331 for ; Fri, 27 Mar 2020 10:26:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3416C20705 for ; Fri, 27 Mar 2020 10:26:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727718AbgC0K0P (ORCPT ); Fri, 27 Mar 2020 06:26:15 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:43450 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726266AbgC0K0O (ORCPT ); Fri, 27 Mar 2020 06:26:14 -0400 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 02RA20Js071702 for ; Fri, 27 Mar 2020 06:26:14 -0400 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 2yxw7h14kk-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 27 Mar 2020 06:26:14 -0400 Received: from localhost by e06smtp02.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 27 Mar 2020 10:26:00 -0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 02RAQ4hm61603956 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 27 Mar 2020 10:26:04 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4D042A4054; Fri, 27 Mar 2020 10:26:04 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8597DA405C; Fri, 27 Mar 2020 10:25:58 +0000 (GMT) Received: from localhost.localdomain.com (unknown [9.79.180.159]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 27 Mar 2020 10:25:58 +0000 (GMT) From: Kajol Jain To: acme@kernel.org, linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au, sukadev@linux.vnet.ibm.com Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, anju@linux.vnet.ibm.com, maddy@linux.vnet.ibm.com, ravi.bangoria@linux.ibm.com, peterz@infradead.org, yao.jin@linux.intel.com, ak@linux.intel.com, jolsa@kernel.org, kan.liang@linux.intel.com, jmario@redhat.com, alexander.shishkin@linux.intel.com, mingo@kernel.org, paulus@ozlabs.org, namhyung@kernel.org, mpetlan@redhat.com, gregkh@linuxfoundation.org, benh@kernel.crashing.org, mamatha4@linux.vnet.ibm.com, mark.rutland@arm.com, tglx@linutronix.de, kjain@linux.ibm.com Subject: [PATCH v7 4/6] perf/tools: Enhance JSON/metric infrastructure to handle "?" Date: Fri, 27 Mar 2020 15:55:26 +0530 X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200327102528.4267-1-kjain@linux.ibm.com> References: <20200327102528.4267-1-kjain@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20032710-0008-0000-0000-000003653346 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20032710-0009-0000-0000-00004A86ACC3 Message-Id: <20200327102528.4267-5-kjain@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.645 definitions=2020-03-27_02:2020-03-26,2020-03-27 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_spam_definite policy=outbound score=100 impostorscore=0 lowpriorityscore=0 malwarescore=0 spamscore=0 adultscore=0 mlxlogscore=273 mlxscore=0 suspectscore=0 bulkscore=0 priorityscore=1501 phishscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003270087 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Patch enhances current metric infrastructure to handle "?" in the metric expression. The "?" can be use for parameters whose value not known while creating metric events and which can be replace later at runtime to the proper value. It also add flexibility to create multiple events out of single metric event added in json file. Patch adds function 'arch_get_runtimeparam' which is a arch specific function, returns the count of metric events need to be created. By default it return 1. This infrastructure needed for hv_24x7 socket/chip level events. "hv_24x7" chip level events needs specific chip-id to which the data is requested. Function 'arch_get_runtimeparam' implemented in header.c which extract number of sockets from sysfs file "sockets" under "/sys/devices/hv_24x7/interface/". With this patch basically we are trying to create as many metric events as define by runtime_param. For that one loop is added in function 'metricgroup__add_metric', which create multiple events at run time depend on return value of 'arch_get_runtimeparam' and merge that event in 'group_list'. To achieve that we are actually passing this parameter value as part of `expr__find_other` function and changing "?" present in metric expression with this value. As in our json file, there gonna be single metric event, and out of which we are creating multiple events. To understand which data count belongs to which parameter value, we also printing param value in generic_metric function. For example, command:# ./perf stat -M PowerBUS_Frequency -C 0 -I 1000 1.000101867 9,356,933 hv_24x7/pm_pb_cyc,chip=0/ # 2.3 GHz PowerBUS_Frequency_0 1.000101867 9,366,134 hv_24x7/pm_pb_cyc,chip=1/ # 2.3 GHz PowerBUS_Frequency_1 2.000314878 9,365,868 hv_24x7/pm_pb_cyc,chip=0/ # 2.3 GHz PowerBUS_Frequency_0 2.000314878 9,366,092 hv_24x7/pm_pb_cyc,chip=1/ # 2.3 GHz PowerBUS_Frequency_1 So, here _0 and _1 after PowerBUS_Frequency specify parameter value. Signed-off-by: Kajol Jain --- tools/perf/arch/powerpc/util/header.c | 8 ++++++++ tools/perf/tests/expr.c | 8 ++++---- tools/perf/util/expr.c | 11 ++++++----- tools/perf/util/expr.h | 5 +++-- tools/perf/util/expr.l | 27 +++++++++++++++++++------- tools/perf/util/metricgroup.c | 28 ++++++++++++++++++++++++--- tools/perf/util/metricgroup.h | 2 ++ tools/perf/util/stat-shadow.c | 17 ++++++++++------ 8 files changed, 79 insertions(+), 27 deletions(-) diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c index 3b4cdfc5efd6..d4870074f14c 100644 --- a/tools/perf/arch/powerpc/util/header.c +++ b/tools/perf/arch/powerpc/util/header.c @@ -7,6 +7,8 @@ #include #include #include "header.h" +#include "metricgroup.h" +#include #define mfspr(rn) ({unsigned long rval; \ asm volatile("mfspr %0," __stringify(rn) \ @@ -44,3 +46,9 @@ get_cpuid_str(struct perf_pmu *pmu __maybe_unused) return bufp; } + +int arch_get_runtimeparam(void) +{ + int count; + return sysfs__read_int("/devices/hv_24x7/interface/sockets", &count) < 0 ? 1 : count; +} diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c index ea10fc4412c4..516504cf0ea5 100644 --- a/tools/perf/tests/expr.c +++ b/tools/perf/tests/expr.c @@ -10,7 +10,7 @@ static int test(struct expr_parse_ctx *ctx, const char *e, double val2) { double val; - if (expr__parse(&val, ctx, e)) + if (expr__parse(&val, ctx, e, 1)) TEST_ASSERT_VAL("parse test failed", 0); TEST_ASSERT_VAL("unexpected value", val == val2); return 0; @@ -44,15 +44,15 @@ int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused) return ret; p = "FOO/0"; - ret = expr__parse(&val, &ctx, p); + ret = expr__parse(&val, &ctx, p, 1); TEST_ASSERT_VAL("division by zero", ret == -1); p = "BAR/"; - ret = expr__parse(&val, &ctx, p); + ret = expr__parse(&val, &ctx, p, 1); TEST_ASSERT_VAL("missing operand", ret == -1); TEST_ASSERT_VAL("find other", - expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other) == 0); + expr__find_other("FOO + BAR + BAZ + BOZO", "FOO", &other, &num_other, 1) == 0); TEST_ASSERT_VAL("find other", num_other == 3); TEST_ASSERT_VAL("find other", !strcmp(other[0], "BAR")); TEST_ASSERT_VAL("find other", !strcmp(other[1], "BAZ")); diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c index c3382d58cf40..9d56e5fb3873 100644 --- a/tools/perf/util/expr.c +++ b/tools/perf/util/expr.c @@ -27,10 +27,11 @@ void expr__ctx_init(struct expr_parse_ctx *ctx) static int __expr__parse(double *val, struct expr_parse_ctx *ctx, const char *expr, - int start) + int start, int param) { struct expr_scanner_ctx scanner_ctx = { .start_token = start, + .runtime_param = param, }; YY_BUFFER_STATE buffer; void *scanner; @@ -54,9 +55,9 @@ __expr__parse(double *val, struct expr_parse_ctx *ctx, const char *expr, return ret; } -int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr) +int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr, int param) { - return __expr__parse(final_val, ctx, expr, EXPR_PARSE) ? -1 : 0; + return __expr__parse(final_val, ctx, expr, EXPR_PARSE, param) ? -1 : 0; } static bool @@ -74,13 +75,13 @@ already_seen(const char *val, const char *one, const char **other, } int expr__find_other(const char *expr, const char *one, const char ***other, - int *num_other) + int *num_other, int param) { int err, i = 0, j = 0; struct expr_parse_ctx ctx; expr__ctx_init(&ctx); - err = __expr__parse(NULL, &ctx, expr, EXPR_OTHER); + err = __expr__parse(NULL, &ctx, expr, EXPR_OTHER, param); if (err) return -1; diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h index 0938ad166ece..0b91597d6512 100644 --- a/tools/perf/util/expr.h +++ b/tools/perf/util/expr.h @@ -17,12 +17,13 @@ struct expr_parse_ctx { struct expr_scanner_ctx { int start_token; + int runtime_param; }; void expr__ctx_init(struct expr_parse_ctx *ctx); void expr__add_id(struct expr_parse_ctx *ctx, const char *id, double val); -int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr); +int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr, int param); int expr__find_other(const char *expr, const char *one, const char ***other, - int *num_other); + int *num_other, int param); #endif diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l index 2582c2464938..86eb822c51cc 100644 --- a/tools/perf/util/expr.l +++ b/tools/perf/util/expr.l @@ -35,7 +35,7 @@ static int value(yyscan_t scanner, int base) * Allow @ instead of / to be able to specify pmu/event/ without * conflicts with normal division. */ -static char *normalize(char *str) +static char *normalize(char *str, int runtime_param) { char *ret = str; char *dst = str; @@ -45,6 +45,19 @@ static char *normalize(char *str) *dst++ = '/'; else if (*str == '\\') *dst++ = *++str; + else if (*str == '?') { + char *paramval; + int i = 0; + int size = asprintf(¶mval, "%d", runtime_param); + + if (size < 0) + *dst++ = '0'; + else { + while (i < size) + *dst++ = paramval[i++]; + free(paramval); + } + } else *dst++ = *str; str++; @@ -54,16 +67,16 @@ static char *normalize(char *str) return ret; } -static int str(yyscan_t scanner, int token) +static int str(yyscan_t scanner, int token, int runtime_param) { YYSTYPE *yylval = expr_get_lval(scanner); char *text = expr_get_text(scanner); - yylval->str = normalize(strdup(text)); + yylval->str = normalize(strdup(text), runtime_param); if (!yylval->str) return EXPR_ERROR; - yylval->str = normalize(yylval->str); + yylval->str = normalize(yylval->str, runtime_param); return token; } %} @@ -72,8 +85,8 @@ number [0-9]+ sch [-,=] spec \\{sch} -sym [0-9a-zA-Z_\.:@]+ -symbol {spec}*{sym}*{spec}*{sym}* +sym [0-9a-zA-Z_\.:@?]+ +symbol {spec}*{sym}*{spec}*{sym}*{spec}*{sym} %% struct expr_scanner_ctx *sctx = expr_get_extra(yyscanner); @@ -93,7 +106,7 @@ if { return IF; } else { return ELSE; } #smt_on { return SMT_ON; } {number} { return value(yyscanner, 10); } -{symbol} { return str(yyscanner, ID); } +{symbol} { return str(yyscanner, ID, sctx->runtime_param); } "|" { return '|'; } "^" { return '^'; } "&" { return '&'; } diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index b905eaa907a7..66695b4a358d 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -90,6 +90,7 @@ struct egroup { const char *metric_name; const char *metric_expr; const char *metric_unit; + int param; }; static struct evsel *find_evsel_group(struct evlist *perf_evlist, @@ -202,6 +203,7 @@ static int metricgroup__setup_events(struct list_head *groups, expr->metric_name = eg->metric_name; expr->metric_unit = eg->metric_unit; expr->metric_events = metric_events; + expr->param = eg->param; list_add(&expr->nd, &me->head); } @@ -485,8 +487,13 @@ static bool metricgroup__has_constraint(struct pmu_event *pe) return false; } +int __weak arch_get_runtimeparam(void) +{ + return 1; +} + static int __metricgroup__add_metric(struct strbuf *events, - struct list_head *group_list, struct pmu_event *pe) + struct list_head *group_list, struct pmu_event *pe, int param) { const char **ids; @@ -494,7 +501,7 @@ static int __metricgroup__add_metric(struct strbuf *events, struct egroup *eg; int ret = -EINVAL; - if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum) < 0) + if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, param) < 0) return ret; if (events->len > 0) @@ -514,6 +521,7 @@ static int __metricgroup__add_metric(struct strbuf *events, eg->metric_name = pe->metric_name; eg->metric_expr = pe->metric_expr; eg->metric_unit = pe->unit; + eg->param = param; list_add_tail(&eg->nd, group_list); return 0; @@ -541,7 +549,21 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events, pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name); - ret = __metricgroup__add_metric(events, group_list, pe); + if (!strstr(pe->metric_expr, "?")) { + ret = __metricgroup__add_metric(events, group_list, pe, 1); + } else { + int j, count; + + count = arch_get_runtimeparam(); + + /* This loop is added to create multiple + * events depend on count value and add + * those events to group_list. + */ + + for (j = 0; j < count; j++) + ret = __metricgroup__add_metric(events, group_list, pe, j); + } if (ret == -EINVAL || !ret) continue; } diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h index 475c7f912864..01393bb33acd 100644 --- a/tools/perf/util/metricgroup.h +++ b/tools/perf/util/metricgroup.h @@ -22,6 +22,7 @@ struct metric_expr { const char *metric_name; const char *metric_unit; struct evsel **metric_events; + int param; }; struct metric_event *metricgroup__lookup(struct rblist *metric_events, @@ -34,4 +35,5 @@ int metricgroup__parse_groups(const struct option *opt, void metricgroup__print(bool metrics, bool groups, char *filter, bool raw, bool details); bool metricgroup__has_metric(const char *metric); +int arch_get_runtimeparam(void); #endif diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 402af3e8d287..c8c582355e32 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -336,7 +336,7 @@ void perf_stat__collect_metric_expr(struct evlist *evsel_list) metric_events = counter->metric_events; if (!metric_events) { if (expr__find_other(counter->metric_expr, counter->name, - &metric_names, &num_metric_names) < 0) + &metric_names, &num_metric_names, 1) < 0) continue; metric_events = calloc(sizeof(struct evsel *), @@ -723,6 +723,7 @@ static void generic_metric(struct perf_stat_config *config, char *name, const char *metric_name, const char *metric_unit, + int param, double avg, int cpu, struct perf_stat_output_ctx *out, @@ -777,7 +778,7 @@ static void generic_metric(struct perf_stat_config *config, } if (!metric_events[i]) { - if (expr__parse(&ratio, &pctx, metric_expr) == 0) { + if (expr__parse(&ratio, &pctx, metric_expr, param) == 0) { char *unit; char metric_bf[64]; @@ -786,9 +787,13 @@ static void generic_metric(struct perf_stat_config *config, &unit, &scale) >= 0) { ratio *= scale; } - - scnprintf(metric_bf, sizeof(metric_bf), + if (strstr(metric_expr, "?")) + scnprintf(metric_bf, sizeof(metric_bf), + "%s %s_%d", unit, metric_name, param); + else + scnprintf(metric_bf, sizeof(metric_bf), "%s %s", unit, metric_name); + print_metric(config, ctxp, NULL, "%8.1f", metric_bf, ratio); } else { @@ -1019,7 +1024,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config, print_metric(config, ctxp, NULL, NULL, name, 0); } else if (evsel->metric_expr) { generic_metric(config, evsel->metric_expr, evsel->metric_events, evsel->name, - evsel->metric_name, NULL, avg, cpu, out, st); + evsel->metric_name, NULL, 1, avg, cpu, out, st); } else if (runtime_stat_n(st, STAT_NSECS, 0, cpu) != 0) { char unit = 'M'; char unit_buf[10]; @@ -1048,7 +1053,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config, out->new_line(config, ctxp); generic_metric(config, mexp->metric_expr, mexp->metric_events, evsel->name, mexp->metric_name, - mexp->metric_unit, avg, cpu, out, st); + mexp->metric_unit, mexp->param, avg, cpu, out, st); } } if (num == 0) -- 2.18.1