![什么是 futex-default-S?](https://linux22.com/image/225604/%E4%BB%80%E4%B9%88%E6%98%AF%20futex-default-S%EF%BC%9F.png)
我找不到更多有关的信息futex-default-S
这是系统调用吗?模块?要不然?
$ perf lock report -t -F acquired,contended,avg_wait
Name acquired contended avg wait (ns)
perf 240569 9 5784
swapper 106610 19 543
:15789 17370 2 14538
ContainerMgr 8981 6 874
sleep 5275 1 11281
ContainerThread 4416 4 944
RootPressureThr 3215 5 1215
rcu_preempt 2954 0 0
ContainerMgr 2560 0 0
unnamed 1873 0 0
EventManager_De 1845 1 636
futex-default-S 1609 0 0