I never used tmpfs for portage TMPDIR before and now decided to give it a try.
I have 8GB of RAM and 12GB of swap on a separate partition. Do I correctly understood https://wiki.gentoo.org/wiki/Portage_TMPDIR_on_tmpfs that I can safely set in the fstab the size of my tmpfs to 12GB so that the chromium could be emerged in tmpfs (using the swap) without the need to set notmpfs.conf for chromium and the likes. And I am going to set the whole /var/tmp/ on tpmfs instead of just /var/tmp/portage Is it ok?