Stack Sizer
Size a self-hosted stack from official sources.
Load and options
SearXNG
v1.0.0Load
Up to 25 users or several AI tools, ~3,000 searches/day, up to 4 searches at once (Granian's 4 blocking threads), default engines, favicons off.
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 1.32, RAM 2.7 GiB, Disk 10.293 GiB
vCPU1.32
RAM2.7GiB
Disk10.293GiB
Breakdown
| Line | From | vCPU | RAM (GiB) | Disk (GiB) | Sources |
|---|---|---|---|---|---|
| SearXNG | SearXNG · Medium load | 1 | 1 | 0.85 | 123456789 |
| System baseline | Operating system, Container runtime (Docker Engine, containerd), System logs (journald), plus logs for 1 containers | 0.1 | 1.25 | 8.1 | 101112131415 |
| Safety headroom | vCPU 20%, RAM 20%, disk 15% of apps + baseline | 0.22 | 0.45 | 1.343 | 1611171418 |
| Recommended total | 1.32 | 2.7 | 10.293 |
Sources
- SearXNG discussion #3884, Recommended specs: a maintainer runs instances on 1 vCPU / 512 MB VMs; container about 300 MB on disk (SearXNG, read 14 Oct 2026)
- SearXNG discussion #1892, Reduce RAM: 600 MB with one uWSGI worker per core on 4 cores, 150 MB with one worker (SearXNG, read 14 Oct 2026)
- Granian 2.8.4 README (pinned by SearXNG): --workers default 1, blocking threads per worker (SearXNG, read 14 Oct 2026)
- container/dist.dockerfile at 22c64b8d3: EXPOSE 8080, GRANIAN_PORT 8080, GRANIAN_BLOCKING_THREADS 4, VOLUME /etc/searxng and /var/cache/searxng, no USER, no HEALTHCHECK (SearXNG, read 14 Oct 2026)
- SearXNG docs: server: settings (secret_key / $SEARXNG_SECRET, base_url, limiter needs Valkey, public_instance, image_proxy uses memory) (SearXNG, read 14 Oct 2026)
- Docker Hub tag searxng/searxng:2026.10.13-22c64b8d3 (linux/amd64): 98,301,157 B compressed; 5 layers decompressed and counted: 271,150,592 B (SearXNG, read 14 Oct 2026)
- Docker: containerd image store is the default on fresh Engine 29+ installs and keeps images compressed and uncompressed (SearXNG, read 14 Oct 2026)
- searx/cache.py at 22c64b8d3 (ExpireCache: values kept 7 days, hourly maintenance, /tmp) (SearXNG, read 14 Oct 2026)
- SearXNG docs: Favicons (off until a resolver is set; cache default /tmp, 50 MB limit; example 2 GB in /var/cache/searxng) (SearXNG, 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
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A short lowercase image id, for example ubuntu-24.04.