Move to support hetzner amd machines

.github/workflows/benchmarks.yaml

@@ -19,11 +19,11 @@ on:
       server_type:
         description: 'Hetzner server type'
         required: false
-        default: 'cx42'
+        default: 'cpx21'
         type: choice
         options:
-          - 'cx22'   # 2 vCPU, 4GB RAM
-          - 'cx42'   # 8 vCPU, 16GB RAM
+          - 'cpx21'  # 3 vCPU, 4GB RAM (AMD)
+          - 'cpx41'  # 8 vCPU, 16GB RAM (AMD)
       commit_range:
         description: 'Commit range to benchmark (e.g., HEAD~5..HEAD)'
         required: false
@@ -126,7 +126,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           python -m csp_benchmarks.hetzner.cli run \
-            --server-type ${{ github.event.inputs.server_type || 'cx22' }} \
+            --server-type ${{ github.event.inputs.server_type || 'cpx21' }} \
             --ssh-key ~/.ssh/hetzner_key \
             --commits "${{ github.event.inputs.commit_range || 'HEAD^!' }}" \
             --push

csp_benchmarks/asv-machine.json

@@ -7,18 +7,18 @@
         "os": "Ubuntu 24.04",
         "ram": "7GB"
     },
-    "hetzner-cx22": {
+    "hetzner-cpx21": {
         "arch": "x86_64",
-        "cpu": "Intel Xeon (2 vCPU)",
-        "machine": "hetzner-cx22",
-        "num_cpu": "2",
+        "cpu": "AMD EPYC (3 vCPU)",
+        "machine": "hetzner-cpx21",
+        "num_cpu": "3",
         "os": "Ubuntu 24.04",
         "ram": "4GB"
     },
-    "hetzner-cx42": {
+    "hetzner-cpx41": {
         "arch": "x86_64",
-        "cpu": "Intel Xeon (8 vCPU)",
-        "machine": "hetzner-cx42",
+        "cpu": "AMD EPYC (8 vCPU)",
+        "machine": "hetzner-cpx41",
         "num_cpu": "8",
         "os": "Ubuntu 24.04",
         "ram": "16GB"

csp_benchmarks/hetzner/cli.py

@@ -117,7 +117,7 @@ def main() -> int:
     run_parser = subparsers.add_parser("run", help="Run benchmarks on Hetzner Cloud")
     run_parser.add_argument("--token", help="Hetzner Cloud API token")
     run_parser.add_argument("--server-name", default="csp-benchmark-runner", help="Server name")
-    run_parser.add_argument("--server-type", default="cx22", help="Hetzner server type (cx22, cx42, etc.)")
+    run_parser.add_argument("--server-type", default="cpx21", help="Hetzner server type (cpx21, cpx41, cpx51)")
     run_parser.add_argument("--ssh-key", help="Path to SSH private key")
     run_parser.add_argument("--ssh-key-name", help="Name of SSH key in Hetzner")
     run_parser.add_argument("--branches", default="main", help="Comma-separated list of branches")

csp_benchmarks/hetzner/server.py

@@ -20,7 +20,7 @@ class ServerConfig:
     """Configuration for a Hetzner benchmark server."""
 
     name: str = "csp-benchmark-runner"
-    server_type: str = "cx22"  # 2 vCPU, 4GB RAM - entry-level for benchmarks
+    server_type: str = "cpx21"  # 3 vCPU, 4GB RAM (AMD)
     image: str = "ubuntu-24.04"
     location: str = "fsn1"  # Falkenstein, Germany
     ssh_key_name: str | None = None

csp_benchmarks/tests/test_hetzner.py

@@ -18,7 +18,7 @@ def test_default_config(self):
 
         config = ServerConfig()
         assert config.name == "csp-benchmark-runner"
-        assert config.server_type == "cx22"
+        assert config.server_type == "cpx21"
         assert config.image == "ubuntu-24.04"
         assert config.location == "fsn1"
         assert config.ssh_key_name is None
@@ -29,13 +29,13 @@ def test_custom_config(self):
 
         config = ServerConfig(
             name="custom-runner",
-            server_type="cx52",
+            server_type="cpx51",
             image="ubuntu-22.04",
             location="nbg1",
             ssh_key_name="my-key",
         )
         assert config.name == "custom-runner"
-        assert config.server_type == "cx52"
+        assert config.server_type == "cpx51"
         assert config.image == "ubuntu-22.04"
         assert config.location == "nbg1"
         assert config.ssh_key_name == "my-key"
@@ -156,7 +156,7 @@ def test_run_benchmarks_no_token(self, mock_runner, mock_manager):
         args = MagicMock()
         args.token = None
         args.server_name = "test"
-        args.server_type = "cx32"
+        args.server_type = "cpx21"
         args.ssh_key_name = None
         args.branches = "main"
         args.commits = None

docs/wiki/Hetzner-Cloud.md

@@ -45,7 +45,7 @@ python -m csp_benchmarks.hetzner.cli run
 
 # With options
 python -m csp_benchmarks.hetzner.cli run \
-    --server-type cx42 \
+    --server-type cpx41 \
     --commits "HEAD~5..HEAD" \
     --push
 ```
@@ -56,7 +56,7 @@ python -m csp_benchmarks.hetzner.cli run \
 | ---------------- | ----------------------- | ---------------------- |
 | `--token`        | Hetzner API token       | `$HCLOUD_TOKEN`        |
 | `--server-name`  | Server name             | `csp-benchmark-runner` |
-| `--server-type`  | Server size             | `cx22`                 |
+| `--server-type`  | Server size             | `cpx21`                |
 | `--ssh-key`      | Path to SSH private key | None                   |
 | `--ssh-key-name` | Hetzner SSH key name    | None                   |
 | `--branches`     | Branches to benchmark   | `main`                 |
@@ -75,11 +75,11 @@ python -m csp_benchmarks.hetzner.cli cleanup
 
 ## Server Types
 
-| Type | vCPU | RAM  | Use Case              |
-| ---- | ---- | ---- | --------------------- |
-| cx22 | 2    | 4GB  | Quick tests (default) |
-| cx42 | 8    | 16GB | Standard benchmarks   |
-| cx52 | 16   | 32GB | Large benchmarks      |
+| Type  | vCPU | RAM  | Use Case              |
+| ----- | ---- | ---- | --------------------- |
+| cpx21 | 3    | 4GB  | Quick tests (default) |
+| cpx41 | 8    | 16GB | Standard benchmarks   |
+| cpx51 | 16   | 32GB | Large benchmarks      |
 
 ## GitHub Actions
 
@@ -149,8 +149,7 @@ Approximate costs (as of 2024):
 
 | Server | Hourly | Monthly |
 | ------ | ------ | ------- |
-| cx22   | €0.006 | €4.35   |
-| cx42   | €0.021 | €15.03  |
-| cx52   | €0.040 | €28.73  |
+| cpx21  | €0.008 | €5.18   |
+| cpx41  | €0.027 | €17.49  |
 
 Servers are automatically deleted after benchmarks complete.