[11:54] <stevecam> Hey, is it possible to be able to follow notifications I receive on Xubuntu
[13:30] <omkar45> Hello Alll
[13:30] <omkar45> I just installed xubuntu on my old macbook pro which is from 2009 or 2010.
[13:31] <omkar45> I fixed the wifi issue there and rebooted the os is stuck right at booting any idea what could have caused this?
[13:32] <omkar45> I installed xubuntu 20.04(LTS) on the macbook/
[21:45] <ccz> hello
[21:45] <ccz> switching from ubuntu to xubuntu now
[21:45] <ccz> to fix some issues with the system
[21:46] <ccz> and... some persisted
[21:46] <gnrp> ccz: Like...?
[21:46] <ccz> all the system get stuck when i download something big (like a 20GB game)
[21:47] <ccz> i have a fast broadband and a ssd
[21:47] <gnrp> what does it mean that the system gets stuck? It is crashing, or getting very slow?
[21:48] <ccz> like almost all the operations freezes, if there is a video playing and a music running in spotify, both stop, the clock stops...
[21:48] <ccz> the only thing that works is the cursor
[21:48] <ccz> but the download keeps running in the background
[21:49] <gnrp> how do you know the download is running?
[21:49] <gnrp> what program do you use for downloading?
[21:49] <gnrp> how much free space do you have on your hdd?
[21:49] <ccz> it could be a download on firefox or a game on steam
[21:49] <gnrp> btw, this is not a xubuntu thing, you might get as well helped in any linux or ubuntu channel, I think^^
[21:49] <gnrp> how do you know the download is still running?
[21:49] <ccz> yes, good idea, hehe
[21:49] <gnrp> do you see the hard drive working?
[21:50] <ccz> in 1 minute more or less, the system works again
[21:50] <ccz> and the download gets completed or sometimes corrupted
[21:50] <ccz> i don't know if its a bottleneck between the internet, ssd, memory and configurations in the system
[21:50] <gnrp> sounds to me as if your system is swapping and that freezes everything?
[21:50] <gnrp> how much free space do you have?
[21:51] <gnrp> and how is the usage of RAM? If you let a terminal with the program htop running inside, on the top you can see how much RAM is being used
[21:51] <ccz> lemme see...
[21:51] <ccz> 70GB
[21:51] <ccz> of free space in the ssd
[21:52] <ccz> this time when I downloaded CS: started downloading, the ssd was writing in 60MB/s and the internet following it. 
[21:52] <ccz> after like 30s the pc stuck
[21:53] <ccz> the graph suddenly gets to 0MB/s
[21:53] <ccz> some seconds and it grows again, it's like a cycle
[21:53] <ccz> 70GB of 120GB on the SSD*
[21:54] <gnrp> where do you see the graph of the network usage?
[21:54] <ccz> in case of steam, in the downloads panel
[21:54] <gnrp> can you at the same point look at how much the hdd is writing?
[21:54] <ccz> yes
[21:55] <gnrp> that would be interesting
[21:55] <ccz> do you want a screenshot?
[21:55] <ccz> in imgur
[21:55] <gnrp> I mean, it is more interesting in terms of time
[21:55] <ccz> hmm
[21:55] <gnrp> my suspicion is that you download stuff which is not written to the HDD, and then at some point it is all flushed
[21:56] <gnrp> to confirm that, maybe try something like (entering into a terminal):              while true; do echo "sync!"; sync; sleep 1; done
[21:56] <ccz> hmm
[21:56] <gnrp> this will perform a flushing of all pending filesystem operations every second
[21:56] <gnrp> well, until it is done
[21:57] <gnrp> so let that run in a terminal while the download is running and check what is happening.
[21:57] <ccz> i'll try... abou the CPU, I saw that it gets 100%, gets stuck, then drops to 60% and goes up gain
[21:58] <ccz> i'll try with other game here
[21:58] <ccz> thanks
[22:01] <ccz> ok I did it
[22:01] <ccz> I downloaded 700MB
[22:01] <ccz> with this sync! printing in the terminal...
[22:02] <ccz> in the middle of the download the "sync!" stop printing for a time
[22:02] <ccz> i thing 30s
[22:02] <ccz> think*
[22:02] <gnrp> yes, that is right
[22:02] <ccz> then the download finished
[22:02] <ccz> and the sync is still printing lmao
[22:02] <gnrp> it will perform that command until everything which was supposed o be written in that moment has been written
[22:02] <gnrp> press Ctrl+C in the terminal to close it
[22:02] <ccz> right
[22:03] <gnrp> so did your computer freeze now?
[22:03] <ccz> this time no...
[22:03] <ccz> nothing critical
[22:03] <gnrp> I got to go to bed now, but I guess with this you can go on searching for help.
[22:03] <ccz> (in the CS time, after I get back to the computer, "Ubuntu 20.4 ... is not responding"
[22:04] <gnrp> The issue is that for some reason your computer buffers all the downloaded data
[22:04] <ccz> very thank you
[22:04] <gnrp> and then your ram is full and only then it starts writing to the disk
[22:04] <ccz> it does make sense...
[22:04] <gnrp> I had this behavior with my systems as well with external drives, but never cared too much to actually fix it
[22:04] <gnrp> it does not really make sense, but that's how I suppose it is^^
[22:05] <gnrp> the OS should start writing as soon as it can
[22:05] <gnrp> anyway, I gtg
[22:05] <gnrp> gn8
[22:05] <ccz> thanks
[22:05] <gnrp> if you find a solution, I'd also be curious
[22:05] <ccz> really helped
[22:05] <gnrp> probably changing the scheduler might do the trick?
[22:05] <ccz> then i got back here
[22:05] <ccz> in #xubuntu
[22:05] <ccz> if i get the solution
[22:05] <gnrp> thanks!
[22:05] <gnrp> and gn8
[22:05] <ccz> good night