Luke Granger-Brown
57725ef3ec
git-subtree-dir: third_party/nixpkgs git-subtree-split: 76612b17c0ce71689921ca12d9ffdc9c23ce40b2
69 lines
1.8 KiB
Nix
69 lines
1.8 KiB
Nix
import ./make-test-python.nix (
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{ pkgs, lib, ... }:
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{
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name = "swapspace";
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meta = with pkgs.lib.maintainers; {
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maintainers = [
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Luflosi
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phanirithvij
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];
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};
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nodes.machine = {
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virtualisation.memorySize = 512;
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services.swapspace = {
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enable = true;
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extraArgs = [ "-v" ];
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settings = {
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# test outside /var/lib/swapspace
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swappath = "/swamp";
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cooldown = 1;
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};
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};
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swapDevices = lib.mkOverride 0 [
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{
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size = 127;
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device = "/root/swapfile";
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}
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];
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boot.kernel.sysctl."vm.swappiness" = 60;
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};
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testScript = ''
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machine.wait_for_unit("multi-user.target")
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machine.wait_for_unit("swapspace.service")
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machine.wait_for_unit("root-swapfile.swap")
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swamp = False
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with subtest("swapspace works"):
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machine.execute("mkdir /root/memfs")
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machine.execute("mount -o size=2G -t tmpfs none /root/memfs")
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i = 0
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while i < 14:
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print(machine.succeed("free -h"))
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out = machine.succeed("sh -c 'swapon --show --noheadings --raw --bytes | grep /root/swapfile'")
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row = out.split(' ')
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# leave 1MB free to not get killed by oom
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freebytes=int(row[2]) - int(row[3]) - 1*1024*1024
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machine.succeed(f"dd if=/dev/random of=/root/memfs/{i} bs={freebytes} count=1")
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machine.sleep(1)
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out = machine.succeed("swapon --show")
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print(out)
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swamp = "/swamp" in out
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if not swamp:
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i += 1
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else:
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print("*"*10, "SWAPED", "*"*10)
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machine.succeed("rm -f /root/memfs/*")
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break
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print(machine.succeed("swapspace -e -s /swamp"))
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assert "/swamp" not in machine.execute("swapon --show")
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assert swamp
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'';
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}
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)
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