Thanks again Ted,

I looked for /boot/efi and there is a directory with many files. Below is how I got there. In the screenshot you can see Swap is using very little memory when I use my machine normally. The second screenshot shows the directory /etc/boot on the disk /de/sda1 and the linux file system on /dev/sda2. gparted has only two partitions (see below from gparted). So the question begs how swap memory is an issue at all? Here's the output of my digging for swap and not finding it in the directory as shown below, /etc/boot. I also found an ubuntu directory and listed the files. Again other than grub the results are Greek to me! 

:/boot/efi/EFI# ls
BOOT  ubuntu
root@brian-VivoBook-ASUS-Laptop-X505ZA-F505ZA:/boot/efi/EFI# cd ubuntu
root@brian-VivoBook-ASUS-Laptop-X505ZA-F505ZA:/boot/efi/EFI/ubuntu# ls
BOOTX64.CSV  grub.cfg  grubx64.efi  mmx64.efi  shimx64.efi

I am loathe to increase the swap memory when it doesn't appear to be a problem according to System Monitor. Anyway, here are my search results to find /etc/boot.

/home/brian# cd /boot
root@brian:/boot# ls
config-5.3.0-55-generic      memtest86+.elf
config-5.4.0-33-generic      memtest86+_multiboot.bin
efi                          System.map-5.3.0-55-generic
grub                         System.map-5.4.0-33-generic
initrd.img                   vmlinuz
initrd.img-5.3.0-55-generic  vmlinuz-5.3.0-55-generic
initrd.img-5.4.0-33-generic  vmlinuz-5.4.0-33-generic
initrd.img.old               vmlinuz.old
memtest86+.bin
root@brian:/boot# cd efi
root@brian:/boot/efi# ls
EFI
root@brian:/boot/efi# cd EFI
root@brian:/boot/efi/EFI# ls
BOOT  ubuntu
root@brian:/boot/efi/EFI# cd BOOT
root@brian:/boot/efi/EFI/BOOT# ls
BOOTX64.EFI  fbx64.efi  mmx64.efi

root@brian:/boot/efi/EFI/BOOT# cd /boot/efi/EFI
root@brian:/boot/efi/EFI# ls
BOOT  ubuntu
root@brian:/boot/efi/EFI# cd ubuntu
root@brian:/boot/efi/EFI/ubuntu# ls
BOOTX64.CSV  grub.cfg  grubx64.efi  mmx64.efi  shimx64.efi

 

Again, many thanks.

Brian

PS: this is not a serious issue as I can do a hard shutdown and boot up again. Next time I'm hopefully going to be doing nothing important and I can just walk away and see if the machine un-freezes. I'll let you know if I go that route and the results.



On 6/7/20 7:55 AM, Ted Pomeroy wrote:
Brian, Right, looks like you did a fresh install of 20.04 and the default in Ubuntu is now a swap file, not a partition. So... you could give a try at the method of increasing swap as described in your first email in this thread. the series of commands basically disconnects swap, then you blank some desire amount of free space, then designate this as the swap directory and enable it. Let us know how it works out. Thank you, Ted P.

On Sat, Jun 6, 2020 at 10:18 PM Brian O'Keefe <okeefe@cybermesa.com> wrote:

One observation that just came to me is the issue again copied below is relating to increasing swap is as a partition in 20.04 but as you can see I do not have a swap partition but I have a 2GB something...file? Also a couple of screenshots from system monitor. It seems that swap has plenty of memory, at least as I run four applications open and hidden process. Maybe they are of some help?


Thanks

Brian

0

yes Ubuntu 20.04 hangs freeze although I have 8 GB of Ram and i7

I could temporary fix this issue in my side, by expanding swap partition from 2 GB to 16 GB

I am not sure but I think there is problem in Ubuntu 20.04 memory management, here in my side it keep consuming memory, then when both memory and swap are full, the computer start to freeze and hang

the solution steps are:

1- check the amount of swap you have

grep SwapTotal /proc/meminfo

2-turn off the swap process

sudo swapoff -a

3-resize the swap(in my case i expand it to 16 gb)

sudo dd if=/dev/zero of=/swapfile bs=1G count=16

4- attach the swap to partition

sudo mkswap /swapfile

5- activate swap(enable it)

sudo swapon /swapfile

6- see the new swap size

grep SwapTotal /proc/meminfo

done

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