【kernel-openEuler-1.0-LTS】4.19内核下进行“perf bench futex wake”测试没有数据

一 环境
    鲲鹏920服务器 + 20.03SP3虚拟机

二 现象

当前运行 perf bench futex wake 没有数据：

[root@localhost ~]# cat /etc/os-release
NAME="openEuler"
VERSION="20.03 (LTS-SP3)"
ID="openEuler"
VERSION_ID="20.03"
PRETTY_NAME="openEuler 20.03 (LTS-SP3)"
ANSI_COLOR="0;31"

[root@localhost ~]#
[root@localhost ~]# uname -r
4.19.90-2112.8.0.0131.oe1.aarch64
[root@localhost ~]#
[root@localhost ~]# perf bench futex wake
# Running 'futex/wake' benchmark:
Run summary [PID 2560]: blocking on 0 threads (at [private] futex 0xaaac0a725b54), waking up 1 at a time.

[Run 1]: Wokeup 0 of 0 threads in 0.0000 ms
[Run 2]: Wokeup 0 of 0 threads in 0.0000 ms
[Run 3]: Wokeup 0 of 0 threads in 0.0000 ms
[Run 4]: Wokeup 0 of 0 threads in 0.0000 ms
[Run 5]: Wokeup 0 of 0 threads in 0.0010 ms
[Run 6]: Wokeup 0 of 0 threads in 0.0000 ms
[Run 7]: Wokeup 0 of 0 threads in 0.0000 ms
[Run 8]: Wokeup 0 of 0 threads in 0.0000 ms
[Run 9]: Wokeup 0 of 0 threads in 0.0000 ms
[Run 10]: Wokeup 0 of 0 threads in 0.0000 ms
Wokeup 0 of 0 threads in 0.0001 ms (+-100.00%)

三 解决方法
    社区对应的修复补丁，合入补丁，制作内核包后，安装kernel和perf，运行成功
    https://github.com/torvalds/linux/commit/f649bd9dd5d5004543bbc3c50b829577b49f5d75

GVP openEuler/kernel

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