forked from lx/netapp
Implement Least Attained First scheduling of streams
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parent
5af23955af
commit
0f799a7768
1 changed files with 17 additions and 5 deletions
22
src/send.rs
22
src/send.rs
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@ -59,6 +59,7 @@ struct SendQueueItem {
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prio: RequestPriority,
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order_tag: Option<OrderTag>,
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data: ByteStreamReader,
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sent: usize,
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}
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impl SendQueue {
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@ -106,7 +107,7 @@ impl SendQueuePriority {
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let i = order_vec.iter().take_while(|o2| **o2 < order).count();
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order_vec.insert(i, order);
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}
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self.items.push_back(item);
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self.items.push_front(item);
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}
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fn remove(&mut self, id: RequestID) {
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if let Some(i) = self.items.iter().position(|x| x.id == id) {
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@ -139,7 +140,11 @@ impl SendQueuePriority {
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_ => unreachable!(),
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});
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if eos || packet.is_err() {
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let is_err = packet.is_err();
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let data_frame = DataFrame::from_packet(packet, !eos);
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item.sent += data_frame.data().len();
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if eos || is_err {
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if let Some(OrderTag(stream, order)) = item.order_tag {
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assert_eq!(
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self.order.get_mut(&stream).unwrap().pop_front(),
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@ -147,9 +152,15 @@ impl SendQueuePriority {
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)
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}
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self.items.remove(j);
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} else {
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for k in j..self.items.len() - 1 {
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if self.items[k].sent >= self.items[k + 1].sent {
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self.items.swap(k, k + 1);
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} else {
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break;
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}
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}
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}
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let data_frame = DataFrame::from_packet(packet, !eos);
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return Poll::Ready((id, data_frame));
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}
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@ -160,7 +171,7 @@ impl SendQueuePriority {
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fn dump(&self, prio: u8) -> String {
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self.items
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.iter()
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.map(|i| format!("[{} {} {:?}]", prio, i.id, i.order_tag))
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.map(|i| format!("[{} {} {:?} @{}]", prio, i.id, i.order_tag, i.sent))
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.collect::<Vec<_>>()
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.join(" ")
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}
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@ -294,6 +305,7 @@ pub(crate) trait SendLoop: Sync {
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prio,
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order_tag,
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data: ByteStreamReader::new(data),
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sent: 0,
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})
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}
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Some(SendItem::Cancel(id)) => {
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