Thanks for replying. In fact, I’ve been running **top **since I first had the problem, and I’ve seen no correlation between what’s running there and the occurrences of freezing and not freezing. However, I think that might be significant.
First, I should perhaps explain that there seem to be two different sorts of freezing - at least as I experience them - with one sometimes leading to the other.
The first sort is when a single application freezes. In this case I can switch to another application, most usefully top. Here I can see that the application that has frozen is not at the top of the list of running applications. This is not because it is waiting on a resource or paused, since sometime things freeze as I type. Sometimes, if I wait the application moves back to the top of the list and I can resume it. Other times everything freezes up and I can’t do anything. That’s the second sort of freeze.
Freezing can last, as I said before, from less than a minute to three, four minutes, occasionally longer.
When an application that freezes is conversing over the internet it can sometimes time out. If the application is one that times out then that is what happens. One one occasion, when I ran Speedtest in order to check if the problem was caused by internet connectivity, Firefox froze and my download speed, usually in the 70-75 or so Mbps range, came out as 0Mbps.
I’ve only once seen a problem with accessing an application locally, when I opened a photo from an email and, after a long pause, the window came up, after the freeze ended, that it could not access Gwenview. A rerun ran okay.
My machine, as I stated before, is an Alienware machine. Before installed Leap 15.0 on it I was running Leap 42,1 quite happily. As far as software is concerned, there are only two differences. One is that Dropbox will no longer run because I need to install an ext4 file system for this to happen. The other is that Baloo is running. Previously it used to crash soon after I started. Otherwise, everything I try to run is exactly as before.
As for the information you asked me to provide:
total used free shared buff/cache available
Mem: 32816840 7786684 282792 221692 24747364 24337900
Swap: 32817216 0 32817216
lsblk -alo NAME,SIZE,MOUNTPOINT,FSTYPE
NAME SIZE MOUNTPOINT FSTYPE
sda1 156M vfat
sda2 2G swap
sda3 40G btrfs
sda4 500M /boot/efi vfat
sda5 40G / btrfs
sda6 1.7T /home xfs
sda7 31.3G [SWAP] swap
btrfs filesystem df /
Data, single: total=12.01GiB, used=10.85GiB
System, DUP: total=32.00MiB, used=16.00KiB
Metadata, DUP: total=640.00MiB, used=545.06MiB
GlobalReserve, single: total=33.19MiB, used=0.00B
lscpu |grep Model
Model name: Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
Anything leap out there?
I should perhaps try running free the next time an application freezes on me