Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80832C433F5 for ; Wed, 15 Dec 2021 16:04:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244432AbhLOQEZ (ORCPT ); Wed, 15 Dec 2021 11:04:25 -0500 Received: from foss.arm.com ([217.140.110.172]:55998 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244407AbhLOQEV (ORCPT ); Wed, 15 Dec 2021 11:04:21 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5F090152B; Wed, 15 Dec 2021 08:04:21 -0800 (PST) Received: from e126387.extremechicken.org (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3DFA83F5A1; Wed, 15 Dec 2021 08:04:20 -0800 (PST) From: carsten.haitzler@foss.arm.com To: linux-kernel@vger.kernel.org Cc: coresight@lists.linaro.org, suzuki.poulose@arm.com, mathieu.poirier@linaro.org, mike.leach@linaro.org, leo.yan@linaro.org, inux-perf-users@vger.kernel.org, acme@kernel.org Subject: [PATCH 05/12] perf test: Add coresight test to check all threads get some data logged Date: Wed, 15 Dec 2021 16:03:56 +0000 Message-Id: <20211215160403.69264-5-carsten.haitzler@foss.arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211215160403.69264-1-carsten.haitzler@foss.arm.com> References: <20211215160403.69264-1-carsten.haitzler@foss.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Carsten Haitzler This adds a test and test scripts to check that all threads in the target binary end up logging some kind of coresight aux data and that they are not missing. Signed-off-by: Carsten Haitzler --- .../coresight_thread_loop_check_tid_10.sh | 19 ++++ .../coresight_thread_loop_check_tid_2.sh | 19 ++++ .../coresight_thread_loop_check_tid_250.sh | 19 ++++ .../perf/tests/shell/tools/coresight/Makefile | 3 +- .../tools/coresight/thread_loop/Makefile | 29 +++++++ .../tools/coresight/thread_loop/thread_loop.c | 86 +++++++++++++++++++ 6 files changed, 174 insertions(+), 1 deletion(-) create mode 100755 tools/perf/tests/shell/coresight_thread_loop_check_tid_10.sh create mode 100755 tools/perf/tests/shell/coresight_thread_loop_check_tid_2.sh create mode 100755 tools/perf/tests/shell/coresight_thread_loop_check_tid_250.sh create mode 100644 tools/perf/tests/shell/tools/coresight/thread_loop/Makefile create mode 100644 tools/perf/tests/shell/tools/coresight/thread_loop/thread_loop.c diff --git a/tools/perf/tests/shell/coresight_thread_loop_check_tid_10.sh b/tools/perf/tests/shell/coresight_thread_loop_check_tid_10.sh new file mode 100755 index 000000000000..283ad9facdee --- /dev/null +++ b/tools/perf/tests/shell/coresight_thread_loop_check_tid_10.sh @@ -0,0 +1,19 @@ +#!/bin/sh -e +# Coresight / Thread Loop 10 Threads - Check TID + +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +TEST="thread_loop" +. $(dirname $0)/lib/coresight.sh +ARGS="10 2000" +DATV="check-tid-10th" +DATA="$DATD/perf-$TEST-$DATV.data" +STDO="$DATD/perf-$TEST-$DATV.stdout" + +SHOW_TID=1 perf record -s $PERFRECOPT -o "$DATA" "$BIN" $ARGS > $STDO + +perf_dump_aux_tid_verify "$DATA" "$STDO" + +err=$? +exit $err diff --git a/tools/perf/tests/shell/coresight_thread_loop_check_tid_2.sh b/tools/perf/tests/shell/coresight_thread_loop_check_tid_2.sh new file mode 100755 index 000000000000..ce8ba534bba2 --- /dev/null +++ b/tools/perf/tests/shell/coresight_thread_loop_check_tid_2.sh @@ -0,0 +1,19 @@ +#!/bin/sh -e +# Coresight / Thread Loop 2 Threads - Check TID + +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +TEST="thread_loop" +. $(dirname $0)/lib/coresight.sh +ARGS="2 4000" +DATV="check-tid-2th" +DATA="$DATD/perf-$TEST-$DATV.data" +STDO="$DATD/perf-$TEST-$DATV.stdout" + +SHOW_TID=1 perf record -s $PERFRECOPT -o "$DATA" "$BIN" $ARGS > $STDO + +perf_dump_aux_tid_verify "$DATA" "$STDO" + +err=$? +exit $err diff --git a/tools/perf/tests/shell/coresight_thread_loop_check_tid_250.sh b/tools/perf/tests/shell/coresight_thread_loop_check_tid_250.sh new file mode 100755 index 000000000000..cb14581c1e68 --- /dev/null +++ b/tools/perf/tests/shell/coresight_thread_loop_check_tid_250.sh @@ -0,0 +1,19 @@ +#!/bin/sh -e +# Coresight / Thread Loop 250 Threads - Check TID + +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 + +TEST="thread_loop" +. $(dirname $0)/lib/coresight.sh +ARGS="250 100" +DATV="check-tid-250th" +DATA="$DATD/perf-$TEST-$DATV.data" +STDO="$DATD/perf-$TEST-$DATV.stdout" + +SHOW_TID=1 perf record -s $PERFRECOPT -o "$DATA" "$BIN" $ARGS > $STDO + +perf_dump_aux_tid_verify "$DATA" "$STDO" + +err=$? +exit $err diff --git a/tools/perf/tests/shell/tools/coresight/Makefile b/tools/perf/tests/shell/tools/coresight/Makefile index 723006ea827c..1edab729db76 100644 --- a/tools/perf/tests/shell/tools/coresight/Makefile +++ b/tools/perf/tests/shell/tools/coresight/Makefile @@ -5,7 +5,8 @@ include ../../../../../../tools/scripts/Makefile.arch include ../../../../../../tools/scripts/utilities.mak SUBDIRS = \ - asm_pure_loop + asm_pure_loop \ + thread_loop all: $(SUBDIRS) $(SUBDIRS): diff --git a/tools/perf/tests/shell/tools/coresight/thread_loop/Makefile b/tools/perf/tests/shell/tools/coresight/thread_loop/Makefile new file mode 100644 index 000000000000..424df4e8b0e6 --- /dev/null +++ b/tools/perf/tests/shell/tools/coresight/thread_loop/Makefile @@ -0,0 +1,29 @@ +# SPDX-License-Identifier: GPL-2.0 +# Carsten Haitzler , 2021 +include ../Makefile.miniconfig + +BIN=thread_loop +LIB=-pthread + +all: $(BIN) + +$(BIN): $(BIN).c +ifdef CORESIGHT +ifeq ($(ARCH),arm64) + $(Q)$(CC) $(BIN).c -o $(BIN) $(LIB) +endif +endif + +install-tests: all +ifdef CORESIGHT +ifeq ($(ARCH),arm64) + $(call QUIET_INSTALL, tests) \ + $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/tools/$(BIN)'; \ + $(INSTALL) $(BIN) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/tools/$(BIN)/$(BIN)' +endif +endif + +clean: + $(Q)$(RM) -f $(BIN) + +.PHONY: all clean install-tests diff --git a/tools/perf/tests/shell/tools/coresight/thread_loop/thread_loop.c b/tools/perf/tests/shell/tools/coresight/thread_loop/thread_loop.c new file mode 100644 index 000000000000..c0158fac7d0b --- /dev/null +++ b/tools/perf/tests/shell/tools/coresight/thread_loop/thread_loop.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0 +// Carsten Haitzler , 2021 + +// define this for gettid() +#define _GNU_SOURCE + +#include +#include +#include +#include +#include +#include +#ifndef SYS_gettid +// gettid is 178 on arm64 +# define SYS_gettid 178 +#endif +#define gettid() syscall(SYS_gettid) + +struct args { + unsigned int loops; + pthread_t th; + void *ret; +}; + +static void *thrfn(void *arg) +{ + struct args *a = arg; + int i = 0, len = a->loops; + + if (getenv("SHOW_TID")) { + unsigned long long tid = gettid(); + + printf("%llu\n", tid); + } + asm volatile( + "loop:\n" + "add %[i], %[i], #1\n" + "cmp %[i], %[len]\n" + "blt loop\n" + : /* out */ + : /* in */ [i] "r" (i), [len] "r" (len) + : /* clobber */ + ); + return (void *)(long)i; +} + +static pthread_t new_thr(void *(*fn) (void *arg), void *arg) +{ + pthread_t t; + pthread_attr_t attr; + + pthread_attr_init(&attr); + pthread_create(&t, &attr, fn, arg); + return t; +} + +int main(int argc, char **argv) +{ + unsigned int i, len, thr; + pthread_t threads[256]; + struct args args[256]; + + if (argc < 3) { + printf("ERR: %s [numthreads] [numloops (millions)]\n", argv[0]); + exit(1); + } + + thr = atoi(argv[1]); + if ((thr < 1) || (thr > 256)) { + printf("ERR: threads 1-256\n"); + exit(1); + } + len = atoi(argv[2]); + if ((len < 1) || (len > 4000)) { + printf("ERR: max loops 4000 (millions)\n"); + exit(1); + } + len *= 1000000; + for (i = 0; i < thr; i++) { + args[i].loops = len; + args[i].th = new_thr(thrfn, &(args[i])); + } + for (i = 0; i < thr; i++) + pthread_join(args[i].th, &(args[i].ret)); + return 0; +} -- 2.32.0