*: add fio tests for disk performance (#3203)

- Change the existing disk write test to use fio
- Add disk write IOPS test, disk read speed test, disk read IOPS test
- Update Dockerfile to include fio

category: feature
ticket: #3207

Dockerfile

@@ -18,7 +18,7 @@ RUN echo "Built charon version=$(./charon version)"
 
 # Copy final binary into light stage.
 FROM debian:bookworm-slim
-RUN apt-get update && apt-get install -y ca-certificates wget
+RUN apt-get update && apt-get install -y ca-certificates wget fio
 ARG GITHUB_SHA=local
 ENV GITHUB_SHA=${GITHUB_SHA}
 COPY --from=builder /app/charon/charon /usr/local/bin/

cmd/test.go

@@ -47,7 +47,7 @@ func newTestCmd(cmds ...*cobra.Command) *cobra.Command {
 	root := &cobra.Command{
 		Use:   "test",
 		Short: "Test subcommands provide test suite to evaluate current cluster setup",
-		Long:  `Test subcommands provide test suite to evaluate current cluster setup. Currently there is support for peer connection tests, beacon node and validator API.`,
+		Long:  `Test subcommands provide test suite to evaluate current cluster setup. The full validator stack can be tested - charon peers, consensus layer, validator client, MEV. Current machine's performance can be examined as well.`,
 	}
 
 	root.AddCommand(cmds...)