在linux上从一开始就设置进程的cpu亲和力 [英] setting cpu affinity of a process from the start on linux
问题描述
我想在linux上设置一个进程启动时的cpu亲和力.
I want to set the cpu affinity of a process on linux when it is starting.
有sched_setaffinity、taskset等方法，但需要进程的processid.它们可能会导致潜在的迁移，就像在一个核心上启动了一个进程，但在使用 sched_setaffinity/taskset 之后，它们被迁移到了另一个核心.
There are methods like sched_setaffinity and taskset, but they need the processid of the process. They may cause potential migration like a process was started on a core but after the use of sched_setaffinity/taskset, they were migrated to another core.
我想做的是从头开始在特定核心上启动一个新进程.
What I want to do is to start a new process on a specific core from the beginning.
推荐答案
taskset既可以用来设置正在运行的进程的亲和性，也可以用来启动具有一定亲和性的进程，见
taskset can be used both to set the affinity of a running process or to launch a process with a certain affinity, see
概要
taskset [options] mask command [arg]...
taskset [options] -p [mask] pid
以下命令将在 CPU 1 & 中启动 Google Chrome 浏览器2(或 0 和 1).掩码为 0×00000003，命令为google-chrome".
The below command will launch Google Chrome browser in CPU 1 & 2 (or 0 and 1). The mask is 0×00000003 and command is "google-chrome".
taskset 0×00000003 google-chrome
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