bin/cpubench: add --perf=1 to automatically perf

src/bin/cpubench.ts

@@ -77,6 +77,7 @@ const proc = spawn(
         "--rebuild=1",
         "-i=1",
         `--work_dir=${workdir}`,
+        `--perf=1`,
     ],
     { cwd: cpubenchDir }
 );