cmd/workload: move filter commands up one level

cmd/workload/filtertestgen.go

@@ -33,16 +33,8 @@ import (
 )
 
 var (
-	filterCommand = &cli.Command{
-		Name:  "filter",
-		Usage: "Log filter workload test commands",
-		Subcommands: []*cli.Command{
-			filterGenCommand,
-			filterPerfCommand,
-		},
-	}
-	filterGenCommand = &cli.Command{
-		Name:      "generate",
+	filterGenerateCommand = &cli.Command{
+		Name:      "filtergen",
 		Usage:     "Generates query set for log filter workload test",
 		ArgsUsage: "<RPC endpoint URL>",
 		Action:    filterGenCmd,

cmd/workload/filtertestperf.go

@@ -28,7 +28,7 @@ import (
 
 var (
 	filterPerfCommand = &cli.Command{
-		Name:      "performance",
+		Name:      "filterperf",
 		Usage:     "Runs log filter performance test against an RPC endpoint",
 		ArgsUsage: "<RPC endpoint URL>",
 		Action:    filterPerfCmd,

cmd/workload/main.go

@@ -48,7 +48,8 @@ func init() {
 	app.Commands = []*cli.Command{
 		runTestCommand,
 		historyGenerateCommand,
-		filterCommand,
+		filterGenerateCommand,
+		filterPerfCommand,
 	}
 }