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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2020/07/24 03:48:56 UTC

[GitHub] [incubator-doris] Pslydhh opened a new pull request #4172: Simplify logic and improve efficiency

Pslydhh opened a new pull request #4172:
URL: https://github.com/apache/incubator-doris/pull/4172


   


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[GitHub] [incubator-doris] Pslydhh closed pull request #4172: Simplify logic and improve efficiency

Posted by GitBox <gi...@apache.org>.
Pslydhh closed pull request #4172:
URL: https://github.com/apache/incubator-doris/pull/4172


   


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[GitHub] [incubator-doris] wuyunfeng commented on a change in pull request #4172: Simplify logic and improve efficiency

Posted by GitBox <gi...@apache.org>.
wuyunfeng commented on a change in pull request #4172:
URL: https://github.com/apache/incubator-doris/pull/4172#discussion_r471326590



##########
File path: be/src/util/blocking_priority_queue.hpp
##########
@@ -85,34 +85,32 @@ class BlockingPriorityQueue {
         MonotonicStopWatch timer;
         boost::unique_lock<boost::mutex> unique_lock(_lock);
 
-        while (true) {
-            if (!_queue.empty()) {
-                // 定期提高队列中残留的任务优先级
-                // 保证优先级较低的大查询不至于完全饿死
-                if (_upgrade_counter > config::priority_queue_remaining_tasks_increased_frequency) {
-                    std::priority_queue<T> tmp_queue;
-                    while (!_queue.empty()) {
-                        T v = _queue.top();
-                        _queue.pop();
-                        ++v;
-                        tmp_queue.push(v);
-                    }
-                    swap(_queue, tmp_queue);
-                    _upgrade_counter = 0;
+        if (!_queue.empty()) {
+            // 定期提高队列中残留的任务优先级

Review comment:
       Maybe you should write the comment using the English




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[GitHub] [incubator-doris] morningman commented on pull request #4172: Simplify logic and improve efficiency

Posted by GitBox <gi...@apache.org>.
morningman commented on pull request #4172:
URL: https://github.com/apache/incubator-doris/pull/4172#issuecomment-663830058


   Could you please create as ISSUE to describe the problem you fixed? 


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