Add musl benchmarks.
Test: Unit tests.
Change-Id: Ifb2911825f84b95fe64a803bfabd32fb81210eae
diff --git a/benchmarks/stdlib_benchmark.cpp b/benchmarks/stdlib_benchmark.cpp
new file mode 100644
index 0000000..7a12eb6
--- /dev/null
+++ b/benchmarks/stdlib_benchmark.cpp
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <langinfo.h>
+#include <locale.h>
+#include <stdlib.h>
+
+#include <benchmark/benchmark.h>
+#include "util.h"
+
+static void BM_stdlib_malloc_free(benchmark::State& state) {
+ const size_t nbytes = state.range(0);
+
+ void* c;
+ while (state.KeepRunning()) {
+ c = malloc(nbytes);
+ free(c);
+ }
+
+ state.SetBytesProcessed(uint64_t(state.iterations()) * uint64_t(nbytes));
+}
+BIONIC_BENCHMARK(BM_stdlib_malloc_free);
+
+static void BM_stdlib_mbstowcs(benchmark::State& state) {
+ const size_t buf_alignment = state.range(0);
+ const size_t widebuf_alignment = state.range(1);
+
+ std::vector<char> buf;
+ std::vector<wchar_t> widebuf;
+
+ setlocale(LC_CTYPE, "C.UTF-8")
+ || setlocale(LC_CTYPE, "en_US.UTF-8")
+ || setlocale(LC_CTYPE, "en_GB.UTF-8")
+ || setlocale(LC_CTYPE, "en.UTF-8")
+ || setlocale(LC_CTYPE, "de_DE-8")
+ || setlocale(LC_CTYPE, "fr_FR-8");
+ if (strcmp(nl_langinfo(CODESET), "UTF-8")) abort();
+
+ char* buf_aligned = GetAlignedPtr(&buf, buf_alignment, 500000);
+ wchar_t* widebuf_aligned = GetAlignedPtr(&widebuf, widebuf_alignment, 500000);
+ size_t i, j, k, l;
+ l = 0;
+ for (i=0xc3; i<0xe0; i++)
+ for (j=0x80; j<0xc0; j++)
+ buf[l++] = i, buf[l++] = j;
+ for (i=0xe1; i<0xed; i++)
+ for (j=0x80; j<0xc0; j++)
+ for (k=0x80; k<0xc0; k++)
+ buf[l++] = i, buf[l++] = j, buf[l++] = k;
+ for (i=0xf1; i<0xf4; i++)
+ for (j=0x80; j<0xc0; j++)
+ for (k=0x80; k<0xc0; k++)
+ buf[l++] = i, buf[l++] = j, buf[l++] = 0x80, buf[l++] = k;
+ buf[l++] = 0;
+
+ volatile size_t c __attribute__((unused)) = 0;
+ while (state.KeepRunning()) {
+ c = mbstowcs(widebuf_aligned, buf_aligned, 500000);
+ }
+
+ state.SetBytesProcessed(uint64_t(state.iterations()) * uint64_t(500000));
+}
+BIONIC_BENCHMARK(BM_stdlib_mbstowcs);
+
+static void BM_stdlib_mbrtowc(benchmark::State& state) {
+ const size_t buf_alignment = state.range(0);
+
+ std::vector<char> buf;
+
+ setlocale(LC_CTYPE, "C.UTF-8")
+ || setlocale(LC_CTYPE, "en_US.UTF-8")
+ || setlocale(LC_CTYPE, "en_GB.UTF-8")
+ || setlocale(LC_CTYPE, "en.UTF-8")
+ || setlocale(LC_CTYPE, "de_DE-8")
+ || setlocale(LC_CTYPE, "fr_FR-8");
+ if (strcmp(nl_langinfo(CODESET), "UTF-8")) abort();
+
+ char* buf_aligned = GetAlignedPtr(&buf, buf_alignment, 500000);
+ size_t i, j, k, l;
+ l = 0;
+ for (i=0xc3; i<0xe0; i++)
+ for (j=0x80; j<0xc0; j++)
+ buf[l++] = i, buf[l++] = j;
+ for (i=0xe1; i<0xed; i++)
+ for (j=0x80; j<0xc0; j++)
+ for (k=0x80; k<0xc0; k++)
+ buf[l++] = i, buf[l++] = j, buf[l++] = k;
+ for (i=0xf1; i<0xf4; i++)
+ for (j=0x80; j<0xc0; j++)
+ for (k=0x80; k<0xc0; k++)
+ buf[l++] = i, buf[l++] = j, buf[l++] = 0x80, buf[l++] = k;
+ buf[l++] = 0;
+
+ wchar_t wc = 0;
+ while (state.KeepRunning()) {
+ for (j = 0; buf_aligned[j]; j+=mbrtowc(&wc, buf_aligned + j, 4, NULL)) {
+ }
+ }
+
+ state.SetBytesProcessed(uint64_t(state.iterations()) * uint64_t(500000));
+}
+BIONIC_BENCHMARK(BM_stdlib_mbrtowc);