Commit 696353fc authored by Artturin's avatar Artturin Committed by Jörg Thalheim
Browse files

nixos/zfs: disable redundant scheduler 

I (according to the comment) wrote this somewhere and since then it has
spread to many configs.

https://github.com/search?q=artturin+ENV%7BID_FS_TYPE%7D%3D%3D%22zfs_member%22%2C+ATTR%7B..%2Fqueue%2Fscheduler%7D%3D%22none%22&type=code

https://github.com/NixOS/nixpkgs/issues/169457#issuecomment-1523873402
parent 8e32f5b9

nixos/modules/tasks/filesystems/zfs.nix

+5 −0
Original line number Diff line number Diff line
@@ -662,6 +662,11 @@ in 
        ];

      };



      # ZFS already has its own scheduler. Without this my(@Artturin) computer froze for a second when I nix build something.

      services.udev.extraRules = ''

        ACTION=="add|change", KERNEL=="sd[a-z]*[0-9]*|mmcblk[0-9]*p[0-9]*|nvme[0-9]*n[0-9]*p[0-9]*", ENV{ID_FS_TYPE}=="zfs_member", ATTR{../queue/scheduler}="none"

      '';



      environment.etc = genAttrs

        (map

          (file: "zfs/zed.d/${file}")