bumingchun commented on code in PR #1763:
URL: https://github.com/apache/incubator-brpc/pull/1763#discussion_r874302131
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tools/rpc_press/rpc_press_impl.cpp:
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@@ -247,21 +242,12 @@ void RpcPress::sync_client() {
if (_options.test_req_rate <= 0) {
brpc::Join(cid1);
} else {
- int64_t end_time = butil::gettimeofday_us();
- int64_t expected_elp = 0;
- int64_t actual_elp = 0;
- timeq.push_back(end_time);
- if (timeq.size() > MAX_QUEUE_SIZE) {
- actual_elp = end_time - timeq.front();
- timeq.pop_front();
- expected_elp = (int64_t)(1000000 * timeq.size() / req_rate);
- } else {
- actual_elp = end_time - timeq.front();
- expected_elp = (int64_t)(1000000 * (timeq.size() - 1) /
req_rate);
- }
- if (actual_elp < expected_elp) {
- usleep(expected_elp - actual_elp);
+ int64_t end_time = butil::monotonic_time_ns();
+ int64_t expected_time = last_expected_time + interval;
+ if (end_time < expected_time) {
+
std::this_thread::sleep_for(std::chrono::nanoseconds(expected_time - end_time));
Review Comment:
是的，使用usleep((expected_time - end_time)/1000)也可以。但为什么要避免引入std的依赖呢？这样的好处是什么呢？
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