I disabled baloo indexer, and made “updatedb” and “man-db” timers run on only 15 min after boot.
Also I removed Xilinx ISE (which contained 300000 files) and some other programs, now there are only CUDA toolkit, Qt Creator, and few Python libs installed by me.
I tried to do
btrfs filesystem defrag, but filesystem was not much fragmented.
Programs, when booted up to desktop, launches quite fast. At my use case it’s not so big issue to buy SSD. So slower boot seems not to be caused by fragmentation.
I am thinking what else could be cause?
Last boot I saw: “update journal catalog” and “rebuild dynamic liker cache” processes took much of 1 min 35 s boot time. This time lightdm service took much less time:
update: when I boot next time today lightdm took
here is lightdm log: https://pastebin.com/xruNScPi