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lspci,顾名思义,就是显示所有的 pci 设备信息。pci 是一种总线,而通过 pci 总线连接的设备就是 pci 设备了。如今,我们常用的设备很多都是采用 pci 总线了,如:网卡、存储。
如果没有 lspci 命令,安装:1
apt-get install pciutils
查看 gpu:1
lspci | grep -i vga
这样就可以显示机器上的显卡信息,比如
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[root@localhost conf]# lspci | grep -i vga
01:00.0 VGA compatible controller: nVidia Corporation Device 1081 (rev a1)
02:00.0 VGA compatible controller: nVidia Corporation GT215 [GeForce GT 240] (rev a2)
08:05.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED Graphics Family (rev 10)
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如果想看详细的信息,比如 GeForce GT 240,即 02:00.0
[root@localhost conf]# lspci -v -s 02:00.0
02:00.0 VGA compatible controller: nVidia Corporation GT215 [GeForce GT 240] (rev a2) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device 8351
Flags: bus master, fast devsel, latency 0, IRQ 169
Memory at f9000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at ce000000 (64-bit, prefetchable) [size=32M]
I/O ports at bc00 [size=128]
[virtual] Expansion ROM at f8f80000 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [b4] Vendor Specific Information: Len=14 >
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting >
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 >
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nvidia
可以看到 GT240 的显存是 256M
如果没有安装显卡驱动,显示可能如下:1
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root@0765afb5370d:/# lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Device 3e92
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c82 (rev a1)
root@0765afb5370d:/# lspci | grep -i 01:00.0
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c82 (rev a1)
root@0765afb5370d:/# lspci -v -s 01:00.0
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c82 (rev a1) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device 8609
Flags: bus master, fast devsel, latency 0, IRQ 125
Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f0000000 (64-bit, prefetchable) [size=32M]
I/O ports at e000 [size=128]
Expansion ROM at f7000000 [disabled] [size=512K]
Capabilities:
Kernel driver in use: nouveau
lspci: Unable to load libkmod resources: error -12
查看 nvidia 的 gpu 信息1
nvidia-smi
配合 watch 命令, 让一秒刷新一次
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watch -n 1 nvidia-smi
查看内存及 cpu 使用情况的命令1
top
htop 工具,更直观1
apt-get install htop
安装完后,直接输入命令1
htop
就可以看到内存或 cpu 的使用情况了。
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