我已经在两个系统上安装了 18.04.2，但两个系统都遇到了 Chrome、Chromium 和 Firefox 等浏览器的问题。
大约一小时后，系统就会挂起或有时会变得非常缓慢。
对此可能有哪些解决方案？
inxi -Fxz 的结果
System: Host: bigstep Kernel: 4.18.0-18-generic x86_64 bits: 64 gcc: 7.3.0
Desktop: Gnome 3.28.3 (Gtk 3.22.30-1ubuntu3) Distro: Ubuntu 18.04.2 LTS
Machine: Device: laptop System: HP product: HP Notebook
v: Type1ProductConfigId serial: N/A
Mobo: HP model: 80C1 v: 96.44 serial: N/A UEFI [Legacy]: Insyde v: F.1E date: 12/25/2015
Battery BAT1: charge: 26.0 Wh 100.0% condition: 26.0/32.6 Wh (80%) model: COMPAL PABAS0241231 status: Full
CPU: Dual core Intel Core i3-5005U (-MT-MCP-)
arch: Broadwell rev.4 cache: 3072 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 7982
clock speeds: max: 1900 MHz 1: 798 MHz 2: 798 MHz 3: 798 MHz 4: 798 MHz
Graphics: Card: Intel HD Graphics 5500 bus-ID: 00:02.0
Display Server: x11 (X.Org 1.20.1 ) driver: i915 Resolution: [email protected]
OpenGL: renderer: Mesa DRI Intel HD Graphics 5500 (Broadwell GT2)
version: 4.5 Mesa 18.2.8 Direct Render: Yes
Audio: Card-1 Intel Wildcat Point-LP High Definition Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Card-2 Intel Broadwell-U Audio Controller driver: snd_hda_intel bus-ID: 00:03.0 Sound: Advanced Linux Sound Architecture v: k4.18.0-18-generic
Network: Card-1: Realtek RTL810xE PCI Express Fast Ethernet controller driver: r8169 v: 2.3LK-NAPI port: 4000 bus-ID: 07:00.0
IF: enp7s0 state: down mac: <filter>
Card-2: Realtek RTL8723BE PCIe Wireless Network Adapter driver: rtl8723be port: 3000 bus-ID: 0d:00.0
IF: wlp13s0 state: up mac: <filter>
Drives: HDD Total Size: 1000.2GB (2.7% used)
ID-1: /dev/sda model: TOSHIBA_MQ01ABD1 size: 1000.2GB temp: 41C
Partition: ID-1: / size: 437G used: 5.4G (2%) fs: ext4 dev: /dev/sda5
ID-2: /boot size: 547M used: 108M (22%) fs: ext4 dev: /dev/sda1
ID-3: /opt size: 234G used: 7.4G (4%) fs: ext4 dev: /dev/sda4
ID-4: /home size: 234G used: 3.6G (2%) fs: ext4 dev: /dev/sda3
ID-5: swap-1 size: 10.24GB used: 1.44GB (14%) fs: swap dev: /dev/sda2
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 42.5C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 288 Uptime: 1 day Memory: 5906.7/7897.9MB Init: systemd runlevel: 5 Gcc sys: N/A
Client: Shell (bash 4.4.191) inxi: 2.3.56
结果：top -n 1 -o %MEM | head -15
top - 18:36:46 up 1 day, 8:51, 1 user, load average: 0.79, 2.31, 4.49
Tasks: 285 total, 1 running, 227 sleeping, 3 stopped, 0 zombie
%Cpu(s): 27.5 us, 6.6 sy, 0.4 ni, 55.1 id, 9.0 wa, 0.0 hi, 1.4 si, 0.0 st
KiB Mem : 8087476 total, 1218824 free, 6015740 used, 852912 buff/cache
KiB Swap: 10000380 total, 8599516 free, 1400864 used. 1659212 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2475 bigstep 20 0 4099960 291452 54384 S 5.0 3.6 63:48.47 skypeforlinux
11086 bigstep 20 0 853152 164800 112700 S 0.0 2.0 0:22.15 chrome
11560 bigstep 20 0 814492 157964 78896 S 5.0 2.0 1:09.64 chrome
2055 bigstep 20 0 3930120 121976 42120 S 0.0 1.5 53:27.32 gnome-shell
11125 bigstep 20 0 557600 98468 79648 S 0.0 1.2 0:25.60 chrome
11128 bigstep 20 0 552044 81648 58472 S 0.0 1.0 0:02.97 chrome
2294 bigstep 20 0 3681628 70656 34708 S 0.0 0.9 30:42.43 skypeforlinux
11097 bigstep 20 0 441408 55956 45740 S 0.0 0.7 0:00.22 chrome
结果：top -n 1 -o %CPU | head -15
top - 18:38:51 up 1 day, 8:53, 1 user, load average: 0.85, 1.82, 4.03
Tasks: 285 total, 1 running, 227 sleeping, 3 stopped, 0 zombie
%Cpu(s): 27.4 us, 6.5 sy, 0.4 ni, 55.3 id, 8.9 wa, 0.0 hi, 1.4 si, 0.0 st
KiB Mem : 8087476 total, 1214376 free, 6018868 used, 854232 buff/cache
KiB Swap: 10000380 total, 8600028 free, 1400352 used. 1657152 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12244 bigstep 20 0 51316 3848 3080 R 11.8 0.0 0:00.03 top
1 root 20 0 225840 3772 2252 S 5.9 0.0 0:52.65 systemd
2055 bigstep 20 0 3930220 122116 42116 S 5.9 1.5 53:32.68 gnome-shell
2100 bigstep 20 0 364880 7080 2504 S 5.9 0.1 2:03.19 ibus-daemon
11560 bigstep 20 0 815592 149516 78980 S 5.9 1.8 1:32.17 chrome
2 root 20 0 0 0 0 S 0.0 0.0 0:00.07 kthreadd
3 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_gp
4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_par_gp
结果：free -h
total used free shared buff/cache available
Mem: 7.7G 5.8G 1.1G 156M 840M 1.6G
Swap: 9.5G 1.3G 8.2G