fix: skip initrd on restore, avoid pyarrow string path in benchmark

Signed-off-by: danbugs <danilochiarlone@gmail.com>

Author: danbugs

.github/workflows/benchmarks.yml

@@ -216,7 +216,7 @@ jobs:
           echo "=== Pandas — DataFrame.describe() ==="
           cat > /tmp/pandas_bench.py << 'PYEOF'
           import pandas as pd, numpy as np
-          df = pd.DataFrame(np.random.randn(1000, 4), columns=list('ABCD'))
+          df = pd.DataFrame(np.random.randn(1000, 4))
           print(df.describe())
           PYEOF
           pyhl run /tmp/pandas_bench.py > /dev/null || { echo "FAIL: pandas smoke check failed"; exit 1; }
@@ -410,7 +410,7 @@ jobs:
           Write-Host "=== Pandas — DataFrame.describe() ==="
           @"
           import pandas as pd, numpy as np
-          df = pd.DataFrame(np.random.randn(1000, 4), columns=list('ABCD'))
+          df = pd.DataFrame(np.random.randn(1000, 4))
           print(df.describe())
           "@ | Out-File -Encoding ascii pandas_bench.py
           $times = @()

host/src/bin/pyhl.rs

@@ -593,12 +593,11 @@ fn cmd_run(args: RunArgs) -> Result<()> {
         listen_ports.is_some(),
     )?;
 
-    let initrd = home.join(INITRD_FILE);
     let t_load = Instant::now();
     let mut sandbox = Sandbox::from_snapshot_file_configured(
         &snapshot,
         &run_preopens,
-        Some(&initrd),
+        None,
         network.as_ref(),
         listen_ports.as_ref(),
     )?;

host/src/pyhl.rs

@@ -274,14 +274,8 @@ impl Runtime {
                 snap.display()
             );
         }
-        let initrd = home.join(INITRD_FILE);
-        let sandbox = Sandbox::from_snapshot_file_configured(
-            &snap,
-            mounts,
-            Some(&initrd),
-            network,
-            listen_ports,
-        )?;
+        let sandbox =
+            Sandbox::from_snapshot_file_configured(&snap, mounts, None, network, listen_ports)?;
         Ok(Self {
             sandbox,
             first_run: true,