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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/vespalib/util/size_literals.h>
#include <vespa/vespalib/util/stringfmt.h>
#include <vespa/vespalib/data/slime/slime.h>
using namespace vespalib;
using namespace vespalib::slime::convenience;
struct MyBuffer : public Output {
std::vector<char> data;
size_t used;
MyBuffer() : data(1_Mi), used(0) {}
~MyBuffer();
WritableMemory reserve(size_t bytes) override {
assert(data.size() >= (used + bytes));
return WritableMemory(&data[used], data.size() - used);
}
Output &commit(size_t bytes) override {
used += bytes;
return *this;
}
};
MyBuffer::~MyBuffer() = default;
std::string make_name(size_t idx) {
return make_string("summary_feature_%zu", idx);
}
double make_value(size_t idx) {
return (0.017 * idx);
}
struct FeatureFixture {
Slime slime;
FeatureFixture() {
Cursor &obj = slime.setObject();
for (size_t i = 0; i < 1000; ++i) {
obj.setDouble(make_name(i), make_value(i));
}
}
};
TEST_F("slime -> json speed", FeatureFixture()) {
size_t size = 0;
double minTime = 1000000.0;
MyBuffer buffer;
for (size_t i = 0; i < 16; ++i) {
vespalib::Timer timer;
for (size_t j = 0; j < 256; ++j) {
buffer.used = 0;
slime::JsonFormat::encode(f1.slime, buffer, true);
}
minTime = std::min(minTime, vespalib::count_ms(timer.elapsed()) / 256.0);
size = buffer.used;
}
fprintf(stderr, "time: %g ms (size: %zu bytes)\n", minTime, size);
}
TEST_F("slime -> binary speed", FeatureFixture()) {
size_t size = 0;
double minTime = 1000000.0;
MyBuffer buffer;
for (size_t i = 0; i < 16; ++i) {
vespalib::Timer timer;
for (size_t j = 0; j < 256; ++j) {
buffer.used = 0;
slime::BinaryFormat::encode(f1.slime, buffer);
}
minTime = std::min(minTime, vespalib::count_ms(timer.elapsed()) / 256.0);
size = buffer.used;
}
fprintf(stderr, "time: %g ms (size: %zu bytes)\n", minTime, size);
}
TEST_MAIN() { TEST_RUN_ALL(); }
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