Stack Sizer
Size a self-hosted stack from official sources.
Load and options
Valkey
v1.0.0Load
Up to 4 GiB of keys in memory (about 50 million small string keys), shared by several apps with steady writes, RDB snapshots.
Options
No options change this app's resources.
Recommended resources
App requirements + system baseline + safety headroom. Nothing else is added, and nothing is rounded to a machine size.
vCPU 2.52, RAM 13.5 GiB, Disk 18.803 GiB
vCPU2.52
RAM13.5GiB
Disk18.803GiB
Breakdown
| Line | From | vCPU | RAM (GiB) | Disk (GiB) | Sources |
|---|---|---|---|---|---|
| Valkey | Valkey · Medium load | 2 | 10 | 8.25 | 123453 |
| System baseline | Operating system, Container runtime (Docker Engine, containerd), System logs (journald), plus logs for 1 containers | 0.1 | 1.25 | 8.1 | 67891011 |
| Safety headroom | vCPU 20%, RAM 20%, disk 15% of apps + baseline | 0.42 | 2.25 | 2.453 | 127131014 |
| Recommended total | 2.52 | 13.5 | 18.803 |
Sources
- Valkey documentation: Administration (vm.overcommit_memory = 1, THP off, maxmemory 8 to 9 of 10 GB free, up to 2× memory during an RDB save or AOF rewrite, no auth by default) (Valkey, read 14 Oct 2026)
- Valkey documentation: FAQ (empty instance ~3 MB, 1 million small string keys ~85 MB, fork() needs overcommit_memory 1, maxmemory errors on writes, I/O threads) (Valkey, read 14 Oct 2026)
- Valkey documentation: Persistence (RDB on by default, AOF, RDB alone when minutes of loss are acceptable, copying dump.rdb while running is safe) (Valkey, read 14 Oct 2026)
- Docker Hub tag valkey/valkey:9.1.2 (linux/amd64): 44,768,058 B compressed; 7 layers decompressed and counted: 117,767,168 B (Valkey, read 14 Oct 2026)
- Docker: containerd image store is the default on fresh Engine 29+ installs and keeps images compressed and uncompressed (Valkey, read 14 Oct 2026)
- Ubuntu Server: System requirements (Sizing policy, read 10 Oct 2026)
- Google Kubernetes Engine: About GKE node sizing (Sizing policy, read 10 Oct 2026)
- ANAROQ measurement: dockerd and containerd at rest (Ubuntu 24.04, Docker 29.8.2) (Sizing policy, read 10 Oct 2026)
- Docker Community Forums: Docker resource usage & overhead (Sizing policy, read 10 Oct 2026)
- journald.conf(5), Ubuntu Manpages (Sizing policy, read 10 Oct 2026)
- Docker Docs: Local file logging driver (Sizing policy, read 10 Oct 2026)
- AWS Compute Optimizer: Rightsizing recommendation preferences (Sizing policy, read 10 Oct 2026)
- Kubernetes: Node-pressure Eviction (Sizing policy, read 10 Oct 2026)
- mke2fs(8), Ubuntu Manpages (Sizing policy, read 10 Oct 2026)
Deployment Spec
Turn this result into a link you can keep or share. Everything is in the link; nothing is sent to us.
A short lowercase image id, for example ubuntu-24.04.