Event JSON
{
"id": "0cda12462dcb6e13b7fbe07abdf17567eae4ab17c633fc8e2aa1b7153f1003ec",
"pubkey": "f2620b194db7db27766c3eb5e055230a16db04617dd2b4ec9b3cbfb7705385b9",
"created_at": 1773230826,
"kind": 1,
"tags": [
[
"t",
"linux"
],
[
"t",
"contabo"
],
[
"t",
"mm"
],
[
"imeta",
"url https://static-s.umeyashiki.org/media/f3a5c8cc3960b237590df91ccfbbfa6ad897446563c1da9a413a14f0fb7ef6ec.png",
"m image/png"
],
[
"t",
"kvm"
],
[
"t",
"vps"
],
[
"imeta",
"url https://static-s.umeyashiki.org/media/7c1d69ddf7271e2903b4b8ef30b14422c4fcd7bc0a0615781a95b6810ce7f6f1.png",
"m image/png"
],
[
"proxy",
"https://s.umeyashiki.org/objects/db73bed4-c50b-4f80-aab5-65cd41ac3d3d",
"activitypub"
],
[
"L",
"pink.momostr"
],
[
"l",
"pink.momostr.activitypub:https://s.umeyashiki.org/objects/db73bed4-c50b-4f80-aab5-65cd41ac3d3d",
"pink.momostr"
],
[
"-"
]
],
"content": "Today I realized that my Linux Contabo VPS has a built-in script in `/etc/cron.hourly` that drops the cache every hour. I found it when I checked dmesg; there are so many \"drop_caches: 1\" lines.\r\n\r\nI guess the memory is not dedicated, but shared via KVM memory ballooning.\r\n\r\nIt seems Contabo tries so hard to reclaim physical memory from its customers by dropping page caches every hour. I feel like Contabo is somewhat notorious for aggressive overprovisioning.\r\n\r\nI will delete the `free` script.\r\n\r\n#linux #contabo #mm #kvm #vps\nhttps://static-s.umeyashiki.org/media/f3a5c8cc3960b237590df91ccfbbfa6ad897446563c1da9a413a14f0fb7ef6ec.png\nhttps://static-s.umeyashiki.org/media/7c1d69ddf7271e2903b4b8ef30b14422c4fcd7bc0a0615781a95b6810ce7f6f1.png\n",
"sig": "6ce1a4d86376d36050cbc33dddd1229d91a4a233a4c9de1b590c71a3475f1756b28cfc51af11b0da74b3f6a84de67759c6993b0904d63a4ddba9a2347564e812"
}
