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Intel® VTune™ Profiler ——异常检测，没有感觉到惊艳，性能的话还是热点分析更好用，另外microarch 分析可以深入cpu看性能问题

性能异常CPU 分析 深入 &# 可以 检测
2023-09-14 09:11:46 时间

一开始需要安装一个driver！

 

Install the Sampling Drivers for Windows* Targets
To install the drivers on Windows* 7 (deprecated) and Windows* Server 2008 R2 operating systems, you must enable the SHA-2 code signing support for these systems by applying Microsoft Security update 3033929. If the security update is not installed, event-based sampling analysis types will not work properly on your system.
To verify the sampling driver is installed correctly on a Microsoft Windows* OS, open the command prompt as an administrator and run the
amplxe-sepreg.exe
utility located at
< >/bin64
.
To make sure your system meets all the requirements necessary for the hardware event-based sampling collection, enter:
amplxe-sepreg.exe -c
This command performs the following dependency checks required to install the sampling driver:
  • platform, architecture, and OS environment
  • availability of the sampling driver binaries:
    sepdrv4_x.sys
    ,
    socperf2_x.sys
    , and
    sepdal.sys
  • administrative privileges
  • 32/64-bit installation
To check whether the sampling driver is loaded, enter:
amplxe-sepreg.exe -s
If the sampling driver is not installed but the system is supported by the
VTune
Profiler
, execute the following command with the administrative privileges to install the driver:
amplxe-sepreg.exe -i
 
 
 

 

使用amplxe-sepreg.exe -i 安装成功后！

管理员运行即出现：

 

 

 

修改为10ms，开始运行：

 

 

可以看到在进行硬件指令数据采集的时候，几乎是不占用CPU的！！！

 

group那里没有event cpu数据？？？咋回事？？？是因为选择的模式不对！！只有microarchtecture 分析才会有！！！

 

 

在这里，才有CPU event count，

 

 

注意采集的数据非常大！采用1ms，有700多MB数据！！！

 

 

 

 

 

 

 

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