linux 下檢視機器是cpu是幾核的
幾個cpu
more /proc/cpuinfo |grep "physical id"|uniq|wc -l
每個cpu是幾核(假設cpu配置相同)
more /proc/cpuinfo |grep "physical id"|grep "0"|wc -l
cat /proc/cpuinfo | grep processor
1. 檢視物理cpu的個數
#cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l
2. 檢視邏輯cpu的個數
#cat /proc/cpuinfo |grep "processor"|wc -l
3. 檢視cpu是幾核
#cat /proc/cpuinfo |grep "cores"|uniq
4. 檢視cpu的主頻
#cat /proc/cpuinfo |grep mhz|uniq
#uname -a
linux euis1 2.6.9-55.elsmp #1 smp fri apr 20 17:03:35 edt 2007 i686 i686 i386 gnu/linux
(檢視當前作業系統核心資訊)
#cat /etc/issue | grep linux
red hat enterprise linux as release 4 (nahant update 5)
(檢視當前作業系統發行版資訊)
#cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
8 intel(r) xeon(r) cpu e5410 @ 2.33ghz
(看到有8個邏輯cpu, 也知道了cpu型號)
#cat /proc/cpuinfo | grep physical | uniq -c
4 physical id : 0
4 physical id : 1
(說明實際上是兩顆4核的cpu)
#getconf long_bit32
(說明當前cpu執行在32bit模式下, 但不代表cpu不支援64bit)
#cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l8
(結果大於0, 說明支援64bit計算. lm指long mode, 支援lm則是64bit)
如何獲得cpu的詳細資訊:
linux命令:cat /proc/cpuinfo
用命令判斷幾個物理cpu,幾個核等:
邏輯cpu個數:
# cat /proc/cpuinfo | grep "processor" | wc -l
物理cpu個數:
# cat /proc/cpuinfo | grep "physical id" | sort | uniq | wc -l
每個物理cpu中core的個數:
# cat /proc/cpuinfo | grep "cpu cores" | wc -l
是否為超執行緒?
如果有兩個邏輯cpu具有相同的」core id」,那麼超執行緒是開啟的。
每個物理cpu中邏輯cpu(可能是core, threads或both)的個數:
# cat /proc/cpuinfo | grep "siblings"
linux 下檢視機器是cpu是幾核的
幾個cpu more proc cpuinfo grep physical id uniq wc l 每個cpu是幾核 假設cpu配置相同 more proc cpuinfo grep physical id grep 0 wc l cat proc cpuinfo grep processor 1...
linux 下檢視機器是cpu是幾核的
檢視各cpu狀況,top 然後按1 1.檢視物理cpu的個數 cat proc cpuinfo grep physical id sort uniq wc l 2.檢視邏輯cpu的個數 cat proc cpuinfo grep processor wc l 3.檢視cpu是幾核 cat proc ...
linux 下檢視機器是cpu是幾核的
幾個cpu more proc cpuinfo grep physical id uniq wc l 每個cpu是幾核 假設cpu配置相同 more proc cpuinfo grep physical id grep 0 wc l cat proc cpuinfo grep processor 1...