Update README.md

neondatabase · Jan 29, 2025 · 5683932 · 5683932
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Showing 3 changed files with 11 additions and 3 deletions.
diff --git a/neonvm-runner/cmd/main.go b/neonvm-runner/cmd/main.go
@@ -400,8 +400,8 @@ func buildQEMUCmd(
 
 const (
 	baseKernelCmdline          = "panic=-1 init=/neonvm/bin/init loglevel=7 root=/dev/vda rw"
-	kernelCmdlineDIMMSlots     = "memhp_default_state=online_movable"
-	kernelCmdlineVirtioMemTmpl = "memhp_default_state=online memory_hotplug.online_policy=auto-movable memory_hotplug.auto_movable_ratio=%s"
+	kernelCmdlineDIMMSlots     = "memhp_default_state=online_movable memory_hotplug.memmap_on_memory=on"
+	kernelCmdlineVirtioMemTmpl = "memhp_default_state=online memory_hotplug.online_policy=auto-movable memory_hotplug.auto_movable_ratio=%s memory_hotplug.memmap_on_memory=on"
 )
 
 func makeKernelCmdline(cfg *Config, logger *zap.Logger, vmSpec *vmv1.VirtualMachineSpec, vmStatus *vmv1.VirtualMachineStatus, hostname string) string {

diff --git a/vm-examples/many-small-files/Dockerfile b/vm-examples/many-small-files/Dockerfile
@@ -13,7 +13,7 @@ RUN cargo build --release
 FROM neondatabase/compute-node-v16:latest
 USER root
 
-RUN apt update && apt install --no-install-recommends -y smem htop lsof
+RUN apt update && apt install --no-install-recommends -y smem htop lsof sysstat
 
 COPY --from=builder /usr/src/app/target/release/many-small-files /usr/local/bin/
 COPY ./mem.py /root/mem.py

diff --git a/vm-examples/many-small-files/README.md b/vm-examples/many-small-files/README.md
@@ -20,6 +20,14 @@ docker build -t many-small-files . && \
 
 ## Cheatsheet
 
+Build a kernel:
+```
+make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu- -j `nproc`
+cp ./arch/x86/boot/bzImage ../../autoscaling/neonvm-kernel/vmlinuz
+
+make docker-build-runner && make deploy
+```
+
 To start a VM:
 ```
 kubectl apply -f ./spec.yml