禁用和启动CPU核心
如何查看CPU核心
root@pangu:~# cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 5 (v7l)
BogoMIPS : 48.00
Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 5
processor : 1
model name : ARMv7 Processor rev 5 (v7l)
BogoMIPS : 48.00
Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 5
Hardware : STM32 (Device Tree Support)
Revision : 0000
Serial : 003D00413239510A33363835
禁用一个CPU核心
root@pangu:~# echo 0 > /sys/devices/system/cpu/cpu1/online
CPU1: shutdown
root@pangu:~# cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 5 (v7l)
BogoMIPS : 48.00
Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 5
Hardware : STM32 (Device Tree Support)
Revision : 0000
Serial : 003D00413239510A33363835
启用已经被禁用的CPU核心
root@st:~# echo 1 > /sys/devices/system/cpu/cpu1/online
CPU1: shutdown
作者:SteveChen 创建时间:2024-09-18 11:57
最后编辑:SteveChen 更新时间:2024-10-18 15:16
最后编辑:SteveChen 更新时间:2024-10-18 15:16