Add io query parameters and file download test

dq/src/bin/dq.rs

@@ -72,10 +72,8 @@ pub fn main() -> Result<(), Error> {
                 };
                 eprintln!("Read config: {:?}", config);
                 let file = File::open(&sub.datafile).await?;
-                let inp = Box::pin(disk::file_content_stream(
-                    file,
-                    netpod::FileIoBufferSize::new(1024 * 16),
-                ));
+                let disk_io_tune = netpod::DiskIoTune::default();
+                let inp = Box::pin(disk::file_content_stream(file, disk_io_tune));
                 let ce = &config.entries[0];
                 let channel_config = ChannelConfig {
                     channel: Channel {

dq/src/dq.rs

@@ -381,7 +381,7 @@ pub async fn convert(convert_params: ConvertParams) -> Result<(), Error> {
                 end: u64::MAX,
             },
             agg_kind: AggKind::Plain,
-            disk_io_buffer_size: 1024 * 4,
+            disk_io_tune: netpod::DiskIoTune::default(),
             do_decompress: true,
         };
         let f1 = pbr.into_file();