I am new to Ubuntu Linux and just installed version 18.04 on my computer alongside Windows in dual-boot mode. However, after three weeks, Linux started to be very slow, and it will even crash a few times a day when it is not able to run my code efficiently enough. It will stop building a package completely when I run catkin build such that I am forced to switch off my laptop.

I have tried the following:

• Looking at CPU specs with lspcu, which are good

  
  



• Looking at the omputer make and model, gotten with the system information part of sudo dmidecode | less

  
  



• Some of the solutions found on the following website: https://www.maketecheasier.com/linux-running-too-slow-heres-how-to-find-the-cause/. Such as: checking my CPU size (seems okay), examine CPU load with top (no process seems to be abusing my CPU usage) and check if my hard drive is overworking with iotop (it is not).

  
  



• Examining the system with systemd-analyze blame:

  
  

          19.606s apt-daily.service
  
          6.913s NetworkManager-wait-online.service
  
          4.019s plymouth-quit-wait.service
  
          3.163s apt-daily-upgrade.service
  
          2.258s bolt.service
  
          1.391s snap-gnomex2d3x2d34x2d1804-66.mount
  
          1.354s snap-onenotex2ddesktop-13.mount
  
          1.352s snap-gnomex2dcalculator-826.mount
  
          1.337s dev-sda7.device
  
          1.332s snap-gnomex2dcharacters-570.mount
  
          1.241s snap-dub-53.mount
  
          1.206s snap-gtkx2dcommonx2dthemes-1514.mount
  
          1.172s snap-snapd-11107.mount
  
          1.100s snap-gnomex2dcalculator-884.mount
  
          1.031s snap-gnomex2dsystemx2dmonitor-148.mount
  
          1.013s snap-gnomex2dlogs-103.mount
  
           993ms snapd.service
  
           971ms snap-core-10958.mount
  
           912ms snap-code-59.mount
  
           911ms dev-loop4.device
  
           878ms dev-loop5.device
  
           857ms fwupd.service
  
           835ms dev-loop2.device
  
  

  
  

It seems like the upper lines are taken up a lot of time, so maybe this is a cause of the problem?

• It should be noted that my Ubuntu running slow is mainly caused when I am using Visual Studio Code for too long - when my Ubuntu has just started, it runs fine, but after a while it gets slower and slower. I checked again with the top command the CPU usage when running a code in Visual Studio Code and it seems like maybe this causes a problem since cc1plus command runs at 99-100% CPU:

• I have looked at /var/log/syslog errors as well with cat var/log/syslog | grep 'error' and the following error occurred multiple times:

Apr 16 13:48:06 jessie-HP-ZBook-Studio-G3 gnome-shell[1321]: Error setting property 'Powered' on interface org.bluez.Adapter1: GDBus.Error:org.bluez.Error.Blocked: Blocked through rfkill (g-io-error-quark, 36)

Other errors that occur (not as often, though) are:

Apr 16 13:48:07 jessie-HP-ZBook-Studio-G3 org.gnome.Shell.desktop[1957]: [4212:4212:0416/134807.054559:ERROR:gpu_service_impl.cc(1177)] Exiting GPU process because some drivers can't recover from errors. GPU process will restart shortly.

Apr 16 15:11:04 jessie-HP-ZBook-Studio-G3 kernel: [ 6106.242652] traps: ocs2_controller[14048] general protection fault ip:7f96415d58da sp:7ffd54f40af8 error:0 in libocs2_centroidal_planner.so[7f96414fa000+258000]

Apr 16 15:18:21 jessie-HP-ZBook-Studio-G3 org.gnome.Shell.desktop[1957]: Fontconfig error: Cannot load default config file: No such file: (null)

Apr 16 16:36:57 jessie-HP-ZBook-Studio-G3 kernel: [    0.173308] ACPI Error: Aborting method _SB._OSC due to previous error (AE_AML_BUFFER_LIMIT) (20190816/psparse-531)

Apr 16 16:36:57 jessie-HP-ZBook-Studio-G3 kernel: [    6.312196] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro

Apr 16 16:36:57 jessie-HP-ZBook-Studio-G3 kernel: [    6.736341] hp_accel: probe of HPQ6007:00 failed with error -22

Apr 16 16:36:59 jessie-HP-ZBook-Studio-G3 snapd[1048]: stateengine.go:150: state ensure error: Get https://api.snapcraft.io/api/v1/snaps/sections: dial tcp: lookup api.snapcraft.io: no such host

• Finally, I went to the folder /var/crash and look for files there (ls -a), however, no files are found, the only thing my terminal displays are dots: . ..

Anyone who has any idea where to look for the cause of these crashes when running code, and if the main cause is my Ubuntu / dual boot or Visual Studio Code? I am sorry for stating such an unclear general question. If anything else is needed I'll provide it.

EDIT: @heynnema suggested showing the output of the following commands:

• ls -al /var/crash :

total 8

drwxrwsrwt  2 root whoopsie 4096 apr  1 14:17 .

drwxr-xr-x 15 root root     4096 nov 17 15:50 ..

• grep -i swap /etc/fstab:

# swap was on /dev/sda8 during installation

UUID=7d274857-3e37-4991-8dda-48a22bfdf7b6 none            swap    sw              0       0

• sysctl vm.swappiness:

vm.swappiness = 60

• grep -i FPDMA /var/log/syslog*
  Does not give any result


• Screenshot of SMART Data & Self Tests in application Disks:
  

EDIT 2: Outcome of the following commands for @heynnema:

• sudo lshw -C memory:

*-cache:0                 

       description: L1 cache

       physical id: 0

       slot: L1 Cache

       size: 128KiB

       capacity: 128KiB

       capabilities: synchronous internal write-back data

       configuration: level=1

  *-cache:1

       description: L1 cache

       physical id: 1

       slot: L1 Cache

       size: 128KiB

       capacity: 128KiB

       capabilities: synchronous internal write-back instruction

       configuration: level=1

  *-cache:2

       description: L2 cache

       physical id: 2

       slot: L2 Cache

       size: 1MiB

       capacity: 1MiB

       capabilities: synchronous internal write-back unified

       configuration: level=2

  *-cache:3

       description: L3 cache

       physical id: 3

       slot: L3 Cache

       size: 6MiB

       capacity: 6MiB

       capabilities: synchronous internal write-back unified

       configuration: level=3

  *-memory

       description: System Memory

       physical id: 5

       slot: System board or motherboard

       size: 8GiB

     *-bank:0

          description: SODIMM DDR4 Synchronous Unbuffered (Unregistered) 2133 MHz (0,5 ns)

          product: M471A1K43CB1-CRC

          vendor: Samsung

          physical id: 0

          serial: 0305815B

          slot: Top-Slot 1(left)

          size: 8GiB

          width: 64 bits

          clock: 2133MHz (0.5ns)

     *-bank:1

          description: [empty]

          physical id: 1

          slot: Top-Slot 2(right)

  *-firmware

       description: BIOS

       vendor: HP

       physical id: b

       version: N82 Ver. 01.45

       date: 01/05/2020

       size: 64KiB

       capacity: 15MiB

       capabilities: pci pcmcia upgrade shadowing cdboot bootselect edd int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification netboot uefi

  *-memory UNCLAIMED

       description: Memory controller

       product: 100 Series/C230 Series Chipset Family Power Management Controller

       vendor: Intel Corporation

       physical id: 1f.2

       bus info: pci@0000:00:1f.2

       version: 31

       width: 32 bits

       clock: 33MHz (30.3ns)

       configuration: latency=0

       resources: memory:e5348000-e534bfff

• sudo dmidecode -s bios-version:

N82 Ver. 01.45

• Motherboard info with sudo dmidecode -t 2:

# dmidecode 3.1

Getting SMBIOS data from sysfs.

SMBIOS 2.7 present.



Handle 0x000D, DMI type 2, 17 bytes

Base Board Information

    Manufacturer: HP

    Product Name: 80D4

    Version: KBC Version 11.75

    Serial Number: PFPLFM11T540O0

    Asset Tag:  

    Features:

        Board is a hosting board

    Location In Chassis:  

    Chassis Handle: 0x0000

    Type: Motherboard

    Contained Object Handles: 0

• Computer model:

HP ZBook Studio G3

EDIT @heynnema I followed the Swap steps, however, when using sudo -H gedit /etc/fstab and trying to comment out the line /swapfile none swap sw 0 0, I cannot find it, see screenshot:
/etc/fstab edit file