내 CPU 사용량이 거의 90% 이상입니다. htop의 출력을 조사한 후 다음 명령을 사용하는 프로세스가 너무 많은 CPU 사용량을 차지하는 것을 확인했습니다.

 /usr/lib/xorg/Xorg -nolisten tcp :0 vt1 -keeptty -auth /tmp/serverauth.eEvrhpxBUl

전체 데이터를 살펴보세요

alamin    1635  1634 31 06:12 tty1     00:35:13 /usr/lib/xorg/Xorg -nolisten tcp :0 vt1 -keeptty -auth /tmp/serverauth.eEvrhpxBUl
alamin    9081 26703  0 08:04 pts/0    00:00:00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn Xorg

lspci 출력

00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
00:1c.2 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #3 (rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5 (rev e3)
00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller (rev 03)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
06:00.0 Network controller: Intel Corporation Wireless 3160 (rev 83)
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
08:00.0 3D controller: NVIDIA Corporation GK208M [GeForce 920M] (rev a1)

mpstat -P ALL의 출력

Linux 4.10.0-33-generic (laptop)    08/29/2017  _x86_64_    (4 CPU)

08:55:25 AM  CPU    %usr   %nice    %sys %iowait    %irq   %soft  %steal  %guest  %gnice   %idle
08:55:25 AM  all   47.07    0.01   18.16    4.53    0.00    0.52    0.00    0.00    0.00   29.70
08:55:25 AM    0   48.75    0.01   17.76    4.44    0.00    0.18    0.00    0.00    0.00   28.87
08:55:25 AM    1   47.76    0.02   17.03    4.06    0.00    1.59    0.00    0.00    0.00   29.55
08:55:25 AM    2   47.95    0.01   18.64    5.16    0.00    0.22    0.00    0.00    0.00   28.02
08:55:25 AM    3   43.81    0.01   19.24    4.47    0.00    0.09    0.00    0.00    0.00   32.38

vmstat 출력

procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 2  0      0 5918180  57512 905904    0    0   202    28 1848 2469 48 19 29  4  0

더 많은 데이터가 필요한 경우. 그냥 물어봐....

해결 방법을 제안해 주세요.