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Port perf_convert_ascii

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The "#[bench]" attribute is not allowed in stable Rust, so keep it behind
a new feature flag. Run on nightly Rust with

    $ cargo bench --features=bechmark
    test tests::encoding::bench::bench_convert_ascii ... bench:     125,988 ns/iter (+/- 1,128) = 1040 MB/s
This commit is contained in:
Johannes Altmanninger
2023-12-10 08:48:18 +01:00
parent f3dd8d306f
commit 38d52b7835
5 changed files with 17 additions and 19 deletions
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19
src/fish_tests.cpp
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@@ -408,24 +408,6 @@ static void test_convert_private_use() {
}
}
// todo!("port this");
static void perf_convert_ascii() {
std::string s(128 * 1024, '\0');
for (size_t i = 0; i < s.size(); i++) {
s[i] = (i % 10) + '0';
}
(void)str2wcstring(s);
double start = timef();
const int iters = 1024;
for (int i = 0; i < iters; i++) {
(void)str2wcstring(s);
}
double end = timef();
auto usec = static_cast<unsigned long long>(((end - start) * 1E6) / iters);
say(L"ASCII string conversion perf: %lu bytes in %llu usec", s.size(), usec);
}
// todo!("already ported, delete this");
static void test_iothread() {
say(L"Testing iothreads");
@@ -1203,7 +1185,6 @@ static const test_t s_tests[]{
{TEST_GROUP("convert"), test_convert},
{TEST_GROUP("convert"), test_convert_private_use},
{TEST_GROUP("convert_ascii"), test_convert_ascii},
{TEST_GROUP("perf_convert_ascii"), perf_convert_ascii, true},
{TEST_GROUP("iothread"), test_iothread},
{TEST_GROUP("pthread"), test_pthread},
{TEST_GROUP("lru"), test_lru},