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linux下查看cpu的情况

  • 2023-04-04 05:27:26
  • 来源:未知
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  现在机器的cpu越来越复杂,一个cpu,经常是几个内核,4,6,8都不是什么稀罕的事情。

  当年我公司购买一台8cpu的AMD服务器,双核,当时看到cpu很壮观,16个cpu。

  现在一台普通的2U的服务器,都可能看到这种场景。

  http://planet.admon.org/howto/about-cpu-the-logical-and-physical-cores/

  There are some commands here to help identify these type of information quickly on a running Linux:

  Total amount of processors including the logical ones:

  # cat /proc/cpuinfo | grep “processor“| wc -l

  Total amount of CPU package:

  # cat /proc/cpuinfo | grep “physical id“ | sort | uniq | wc -l

  How many cores for each CPU. (Here we should call CPU as physical package as we mentioned above):

  # cat /proc/cpuinfo | grep “cpu cores“ | wc -l

  For each physical CPU, the amount of Logical CPU (the logical CPU can be physical cores, soft cores like threaded, or both).

  # cat /proc/cpuinfo | grep “siblings“

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