From 5568c324bad71018a9480a22e1e4d60f5ea8c6d5 Mon Sep 17 00:00:00 2001
From: Angus Gratton <gus@projectgus.com>
Date: Tue, 7 Jun 2022 17:46:08 +1000
Subject: [PATCH] tests/perf_bench: Add some configurations for N=32, M=10.

For STM32L072 and similar, very low end targets.

The other perf_bench tests run out of memory, crash, or fail on
prerequisite features.

Signed-off-by: Angus Gratton <gus@projectgus.com>
---
 tests/perf_bench/bm_fannkuch.py           | 1 +
 tests/perf_bench/bm_nqueens.py            | 2 +-
 tests/perf_bench/bm_pidigits.py           | 1 +
 tests/perf_bench/core_import_mpy_multi.py | 2 +-
 tests/perf_bench/core_qstr.py             | 2 +-
 tests/run-perfbench.py                    | 4 +++-
 6 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/tests/perf_bench/bm_fannkuch.py b/tests/perf_bench/bm_fannkuch.py
index 9f7ae797f0..49ab05d1e9 100644
--- a/tests/perf_bench/bm_fannkuch.py
+++ b/tests/perf_bench/bm_fannkuch.py
@@ -51,6 +51,7 @@ def fannkuch(n):
 # Benchmark interface
 
 bm_params = {
+    (32, 10): (3,),
     (50, 10): (5,),
     (100, 10): (6,),
     (500, 10): (7,),
diff --git a/tests/perf_bench/bm_nqueens.py b/tests/perf_bench/bm_nqueens.py
index 773dd3f7ed..c5a91bf304 100644
--- a/tests/perf_bench/bm_nqueens.py
+++ b/tests/perf_bench/bm_nqueens.py
@@ -46,7 +46,7 @@ def n_queens(queen_count):
 # Benchmark interface
 
 bm_params = {
-    (50, 25): (1, 5),
+    (32, 10): (1, 5),
     (100, 25): (1, 6),
     (1000, 100): (1, 7),
     (5000, 100): (1, 8),
diff --git a/tests/perf_bench/bm_pidigits.py b/tests/perf_bench/bm_pidigits.py
index 5949b93063..bdaa73cec7 100644
--- a/tests/perf_bench/bm_pidigits.py
+++ b/tests/perf_bench/bm_pidigits.py
@@ -36,6 +36,7 @@ def gen_pi_digits(n):
 # Benchmark interface
 
 bm_params = {
+    (32, 10): (1, 20),
     (50, 25): (1, 35),
     (100, 100): (1, 65),
     (1000, 1000): (2, 250),
diff --git a/tests/perf_bench/core_import_mpy_multi.py b/tests/perf_bench/core_import_mpy_multi.py
index 682c36328a..99c4721d29 100644
--- a/tests/perf_bench/core_import_mpy_multi.py
+++ b/tests/perf_bench/core_import_mpy_multi.py
@@ -73,7 +73,7 @@ def test(r):
 # Benchmark interface
 
 bm_params = {
-    (100, 10): (50,),
+    (32, 10): (50,),
     (1000, 10): (500,),
     (5000, 10): (5000,),
 }
diff --git a/tests/perf_bench/core_qstr.py b/tests/perf_bench/core_qstr.py
index b87e2c0658..64d6c59e92 100644
--- a/tests/perf_bench/core_qstr.py
+++ b/tests/perf_bench/core_qstr.py
@@ -10,7 +10,7 @@ def test(r):
 # Benchmark interface
 
 bm_params = {
-    (100, 10): (400,),
+    (32, 10): (400,),
     (1000, 10): (4000,),
     (5000, 10): (40000,),
 }
diff --git a/tests/run-perfbench.py b/tests/run-perfbench.py
index a2e9e8079a..f76aa511ad 100755
--- a/tests/run-perfbench.py
+++ b/tests/run-perfbench.py
@@ -260,7 +260,9 @@ def main():
     )
     cmd_parser.add_argument("--via-mpy", action="store_true", help="compile code to .mpy first")
     cmd_parser.add_argument("--mpy-cross-flags", default="", help="flags to pass to mpy-cross")
-    cmd_parser.add_argument("N", nargs=1, help="N parameter (approximate target CPU frequency)")
+    cmd_parser.add_argument(
+        "N", nargs=1, help="N parameter (approximate target CPU frequency in MHz)"
+    )
     cmd_parser.add_argument("M", nargs=1, help="M parameter (approximate target heap in kbytes)")
     cmd_parser.add_argument("files", nargs="*", help="input test files")
     args = cmd_parser.parse_args()