Use high-performance clocks instead of frequent system calls.#4441
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iwangjie wants to merge 7 commits intoapache:masterfrom
Closed
Use high-performance clocks instead of frequent system calls.#4441iwangjie wants to merge 7 commits intoapache:masterfrom
iwangjie wants to merge 7 commits intoapache:masterfrom
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System.currentTimeMillis ()frequently switches from user mode to kernel modeThe system has only one global clock source, and high concurrency or frequent access will cause serious contention
ShenyuClockAccuracy of 1 MILLISECONDS, compatible with most scenarios, especially in high-frequency access.The operation can be completed in user mode, which reduces the loss of entering kernel mode.
https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8185891
🤔I think it can be used in the load balancer, Seek community views.