On יום חמישי, 28 בספטמבר 2017 12:27:01 IDT Pierre Couderc wrote: > On 09/28/2017 11:56 AM, to...@tuxteam.de wrote: > > On Thu, Sep 28, 2017 at 11:47:56AM +0200, Pierre Couderc wrote: > >> I have found no howto for zram under debian, nor even the word > >> "zram" in the archives of this list ! > >> > >> I have tried to use zramctl but it refuses with : > >> > >> root@nous:~# zramctl --find --size 1024M > >> zramctl: no free zram device found > >> > >> I suppose I should init something somewere, but what ? > >> > >> On the contrary ubuntu has a dedicated zram-config to make the job. > >> > >> Thanks for any help. > > > > I didn't even know what it is -- but the zram(8) man page and a little > > guesswork at least leads in some direction. > > > > I assume you'd want to load the zram kernel module (sudo modprobe zram, > > I'd guess) to be in in the fun. > > > > There's some doc about the Linux kernel module itself (just follow the > > link in the above man page). > > > > Let us know how it works out and... make a backup first! > > Thank you very much. I have not found "the zram(8) man page "... But It > seems to work : > > root@nous:~# modprobe zram num_devices=2 > root@nous:~# zramctl --find --size 1024M > /dev/zram0 > root@nous:~# zramctl --find --size 1024M > /dev/zram1 > root@nous:~# free -th > total used free shared buff/cache > available > Mem: 3.8G 73M 3.6G 5.5M 146M 3.5G > Swap: 0B 0B 0B > Total: 3.8G 73M 3.6G > root@nous:~# mkswap /dev/zram0 > Setting up swapspace version 1, size = 1024 MiB (1073737728 bytes) > no label, UUID=66e3aa01-a4b8-4308-b317-608c6a072810 > root@nous:~# free -th > total used free shared buff/cache > available > Mem: 3.8G 73M 3.6G 5.5M 146M 3.5G > Swap: 0B 0B 0B > Total: 3.8G 73M 3.6G > root@nous:~# swapon /dev/zram0 > root@nous:~# free -th > total used free shared buff/cache > available > Mem: 3.8G 73M 3.6G 5.5M 147M 3.5G > Swap: 1.0G 0B 1.0G > Total: 4.8G 73M 4.6G > root@nous:~# mkswap /dev/zram1 > Setting up swapspace version 1, size = 1024 MiB (1073737728 bytes) > no label, UUID=69b8070b-3b8d-4234-a773-a59812e54552 > root@nous:~# swapon /dev/zram1 > root@nous:~# free -th > total used free shared buff/cache > available > Mem: 3.8G 74M 3.6G 5.5M 147M 3.5G > Swap: 2.0G 0B 2.0G > Total: 5.8G 74M 5.6G > root@nous:~# > > Now I suppose I shouls put that in a systemd script... > > Thank you very much. > > PC
Did all this. All my free -th results looked the same. Could it be it was already there? Assuming there is an advantage to this, how does one get it going on startup. I HAD a sysinit script for it at one time, before the new days of systend.
