Using RCU’s CPU Stall Detector — The Linux Kernel documentation https://www.kernel.org/doc/html/latest/RCU/stallwarn.html CPU性能中-stall cycle - 简书 https://www.jianshu.com/p/cb37298aa2e8 如果IPC > 1.0, 很可能是计算密集型的程序。可以试图减少执行指令的数量:消除不必要的工作。火焰图CP...
We are seeing a periodic rcu stall/hang, where sometimes we can get a backtrace. Most often, the system just hangs. Please advise. RCU-relevant