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Date: Wed, 15 Dec 2021 16:04:02 +0000
From: carsten.haitzler@...s.arm.com
To: linux-kernel@...r.kernel.org
Cc: coresight@...ts.linaro.org, suzuki.poulose@....com,
mathieu.poirier@...aro.org, mike.leach@...aro.org,
leo.yan@...aro.org, inux-perf-users@...r.kernel.org,
acme@...nel.org
Subject: [PATCH 11/12] perf test: Add unrolled loop tests for coresight aux data
From: Carsten Haitzler <carsten.haitzler@....com>
These tests have large batches of code manually unrolled with macros
to ensure that the processor has to walk through a lot of instructions
and memory for those instructions to generate the coresight aux data.
Signed-off-by: Carsten Haitzler <carsten.haitzler@....com>
---
.../shell/coresight_unroll_loop_thread_1.sh | 18 +++++
.../shell/coresight_unroll_loop_thread_10.sh | 18 +++++
.../shell/coresight_unroll_loop_thread_2.sh | 18 +++++
.../shell/coresight_unroll_loop_thread_25.sh | 18 +++++
.../shell/coresight_unroll_loop_thread_250.sh | 18 +++++
.../perf/tests/shell/tools/coresight/Makefile | 3 +-
.../coresight/unroll_loop_thread/Makefile | 29 ++++++++
.../unroll_loop_thread/unroll_loop_thread.c | 74 +++++++++++++++++++
8 files changed, 195 insertions(+), 1 deletion(-)
create mode 100755 tools/perf/tests/shell/coresight_unroll_loop_thread_1.sh
create mode 100755 tools/perf/tests/shell/coresight_unroll_loop_thread_10.sh
create mode 100755 tools/perf/tests/shell/coresight_unroll_loop_thread_2.sh
create mode 100755 tools/perf/tests/shell/coresight_unroll_loop_thread_25.sh
create mode 100755 tools/perf/tests/shell/coresight_unroll_loop_thread_250.sh
create mode 100644 tools/perf/tests/shell/tools/coresight/unroll_loop_thread/Makefile
create mode 100644 tools/perf/tests/shell/tools/coresight/unroll_loop_thread/unroll_loop_thread.c
diff --git a/tools/perf/tests/shell/coresight_unroll_loop_thread_1.sh b/tools/perf/tests/shell/coresight_unroll_loop_thread_1.sh
new file mode 100755
index 000000000000..9175ec532bd8
--- /dev/null
+++ b/tools/perf/tests/shell/coresight_unroll_loop_thread_1.sh
@@ -0,0 +1,18 @@
+#!/bin/sh -e
+# Coresight / Unroll Loop Thread 1
+
+# SPDX-License-Identifier: GPL-2.0
+# Carsten Haitzler <carsten.haitzler@....com>, 2021
+
+TEST="unroll_loop_thread"
+. $(dirname $0)/lib/coresight.sh
+ARGS="1"
+DATV="1"
+DATA="$DATD/perf-$TEST-$DATV.data"
+
+perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS
+
+perf_dump_aux_verify "$DATA" 118 14 14
+
+err=$?
+exit $err
diff --git a/tools/perf/tests/shell/coresight_unroll_loop_thread_10.sh b/tools/perf/tests/shell/coresight_unroll_loop_thread_10.sh
new file mode 100755
index 000000000000..66cf0245294e
--- /dev/null
+++ b/tools/perf/tests/shell/coresight_unroll_loop_thread_10.sh
@@ -0,0 +1,18 @@
+#!/bin/sh -e
+# Coresight / Unroll Loop Thread 10
+
+# SPDX-License-Identifier: GPL-2.0
+# Carsten Haitzler <carsten.haitzler@....com>, 2021
+
+TEST="unroll_loop_thread"
+. $(dirname $0)/lib/coresight.sh
+ARGS="10"
+DATV="10"
+DATA="$DATD/perf-$TEST-$DATV.data"
+
+perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS
+
+perf_dump_aux_verify "$DATA" 127 17 17
+
+err=$?
+exit $err
diff --git a/tools/perf/tests/shell/coresight_unroll_loop_thread_2.sh b/tools/perf/tests/shell/coresight_unroll_loop_thread_2.sh
new file mode 100755
index 000000000000..ff2e293699b0
--- /dev/null
+++ b/tools/perf/tests/shell/coresight_unroll_loop_thread_2.sh
@@ -0,0 +1,18 @@
+#!/bin/sh -e
+# Coresight / Unroll Loop Thread 2
+
+# SPDX-License-Identifier: GPL-2.0
+# Carsten Haitzler <carsten.haitzler@....com>, 2021
+
+TEST="unroll_loop_thread"
+. $(dirname $0)/lib/coresight.sh
+ARGS="2"
+DATV="2"
+DATA="$DATD/perf-$TEST-$DATV.data"
+
+perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS
+
+perf_dump_aux_verify "$DATA" 65 6 6
+
+err=$?
+exit $err
diff --git a/tools/perf/tests/shell/coresight_unroll_loop_thread_25.sh b/tools/perf/tests/shell/coresight_unroll_loop_thread_25.sh
new file mode 100755
index 000000000000..7d7669a797ab
--- /dev/null
+++ b/tools/perf/tests/shell/coresight_unroll_loop_thread_25.sh
@@ -0,0 +1,18 @@
+#!/bin/sh -e
+# Coresight / Unroll Loop Thread 25
+
+# SPDX-License-Identifier: GPL-2.0
+# Carsten Haitzler <carsten.haitzler@....com>, 2021
+
+TEST="unroll_loop_thread"
+. $(dirname $0)/lib/coresight.sh
+ARGS="25"
+DATV="25"
+DATA="$DATD/perf-$TEST-$DATV.data"
+
+perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS
+
+perf_dump_aux_verify "$DATA" 72 26 25
+
+err=$?
+exit $err
diff --git a/tools/perf/tests/shell/coresight_unroll_loop_thread_250.sh b/tools/perf/tests/shell/coresight_unroll_loop_thread_250.sh
new file mode 100755
index 000000000000..7a0e23aff0dc
--- /dev/null
+++ b/tools/perf/tests/shell/coresight_unroll_loop_thread_250.sh
@@ -0,0 +1,18 @@
+#!/bin/sh -e
+# Coresight / Unroll Loop Thread 250
+
+# SPDX-License-Identifier: GPL-2.0
+# Carsten Haitzler <carsten.haitzler@....com>, 2021
+
+TEST="unroll_loop_thread"
+. $(dirname $0)/lib/coresight.sh
+ARGS="250"
+DATV="250"
+DATA="$DATD/perf-$TEST-$DATV.data"
+
+perf record $PERFRECOPT -o "$DATA" "$BIN" $ARGS
+
+perf_dump_aux_verify "$DATA" 544 2417 2417
+
+err=$?
+exit $err
diff --git a/tools/perf/tests/shell/tools/coresight/Makefile b/tools/perf/tests/shell/tools/coresight/Makefile
index be671aac06b8..b9cdeff1149b 100644
--- a/tools/perf/tests/shell/tools/coresight/Makefile
+++ b/tools/perf/tests/shell/tools/coresight/Makefile
@@ -10,7 +10,8 @@ SUBDIRS = \
bubble_sort \
bubble_sort_thread \
memcpy \
- memcpy_thread
+ memcpy_thread \
+ unroll_loop_thread
all: $(SUBDIRS)
$(SUBDIRS):
diff --git a/tools/perf/tests/shell/tools/coresight/unroll_loop_thread/Makefile b/tools/perf/tests/shell/tools/coresight/unroll_loop_thread/Makefile
new file mode 100644
index 000000000000..45ab2be8be92
--- /dev/null
+++ b/tools/perf/tests/shell/tools/coresight/unroll_loop_thread/Makefile
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: GPL-2.0
+# Carsten Haitzler <carsten.haitzler@....com>, 2021
+include ../Makefile.miniconfig
+
+BIN=unroll_loop_thread
+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/unroll_loop_thread/unroll_loop_thread.c b/tools/perf/tests/shell/tools/coresight/unroll_loop_thread/unroll_loop_thread.c
new file mode 100644
index 000000000000..cb9d22c7dfb9
--- /dev/null
+++ b/tools/perf/tests/shell/tools/coresight/unroll_loop_thread/unroll_loop_thread.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+// Carsten Haitzler <carsten.haitzler@....com>, 2021
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <pthread.h>
+
+struct args {
+ pthread_t th;
+ unsigned int in, out;
+ void *ret;
+};
+
+static void *thrfn(void *arg)
+{
+ struct args *a = arg;
+ unsigned int i, in = a->in;
+
+ for (i = 0; i < 10000; i++) {
+ asm volatile (
+// force an unroll of thia add instruction so we can test long runs of code
+#define SNIP1 "add %[in], %[in], #1\n"
+// 10
+#define SNIP2 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1
+// 100
+#define SNIP3 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2 SNIP2
+// 1000
+#define SNIP4 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3 SNIP3
+// 10000
+#define SNIP5 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4 SNIP4
+// 100000
+ SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5 SNIP5
+ : /* out */
+ : /* in */ [in] "r" (in)
+ : /* clobber */
+ );
+ }
+}
+
+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, thr;
+ pthread_t threads[256];
+ struct args args[256];
+
+ if (argc < 2) {
+ printf("ERR: %s [numthreads]\n", argv[0]);
+ exit(1);
+ }
+
+ thr = atoi(argv[1]);
+ if ((thr > 256) || (thr < 1)) {
+ printf("ERR: threads 1-256\n");
+ exit(1);
+ }
+ for (i = 0; i < thr; i++) {
+ args[i].in = rand();
+ 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
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