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Use looser 9pfs caching in VM tests/builds

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This can give significant speed ups, see
https://github.com/edolstra/linux/commit/7e20254412c780a2102761fee92cb1d32ceeaefd.
This commit is contained in:
Eelco Dolstra
2016-12-29 21:26:16 +01:00
parent 87d5e27a3d
commit bbd03e236a
4 changed files with 14 additions and 4 deletions
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nixos/modules/virtualisation/qemu-vm.nix
+2 -2
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@@ -440,13 +440,13 @@ in
${if cfg.writableStore then "/nix/.ro-store" else "/nix/store"} =
{ device = "store";
fsType = "9p";
options = [ "trans=virtio" "version=9p2000.L" "cache=loose" ];
options = [ "trans=virtio" "version=9p2000.L" "veryloose" ];
neededForBoot = true;
};
"/tmp/xchg" =
{ device = "xchg";
fsType = "9p";
options = [ "trans=virtio" "version=9p2000.L" "cache=loose" ];
options = [ "trans=virtio" "version=9p2000.L" "veryloose" ];
neededForBoot = true;
};
"/tmp/shared" =