mirror of https://github.com/voidlizard/hbs2
wip HEsUhP3CJN
This commit is contained in:
Dmitry Zuikov
parent
845b6702e1
commit
e63004882d
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@ -16,7 +16,7 @@ defBurst :: Integral a => a
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defBurst = 4
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defBurstMax :: Integral a => a
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defBurstMax = 128
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defBurstMax = 32
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-- defChunkSize :: Integer
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defChunkSize :: Integral a => a
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@ -61,11 +61,11 @@ defBlockInfoTimeout = 2
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-- how much time wait for block from peer?
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defBlockWaitMax :: Timeout 'Seconds
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defBlockWaitMax = 2.5 :: Timeout 'Seconds
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defBlockWaitMax = 1.5 :: Timeout 'Seconds
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-- how much time wait for block from peer?
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defChunkWaitMax :: Timeout 'Seconds
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defChunkWaitMax = 0.35 :: Timeout 'Seconds
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defChunkWaitMax = 0.15 :: Timeout 'Seconds
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defSweepTimeout :: Timeout 'Seconds
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defSweepTimeout = 30 -- FIXME: only for debug!
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@ -293,8 +293,8 @@ downloadFromWithPeer peer thisBkSize h = do
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-- liftIO $ atomically $ modifyTVar (view peerErrors pinfo) succ
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updatePeerInfo True pinfo
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newBurst' <- liftIO $ readTVarIO burstSizeT
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let newBurst = max defBurst $ floor (realToFrac newBurst' * 0.5 )
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newBurst <- liftIO $ readTVarIO burstSizeT
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-- let newBurst = max defBurst $ floor (realToFrac newBurst' * 0.5 )
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liftIO $ atomically $ modifyTVar (view peerDownloaded pinfo) (+chunksN)
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@ -348,6 +348,9 @@ instance HasPeerLocator e m => HasPeerLocator e (BlockDownloadM e m) where
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getPeerLocator = lift getPeerLocator
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-- NOTE: updatePeerInfo is CC
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-- updatePeerInfo is actuall doing CC (congestion control)
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updatePeerInfo :: MonadIO m => Bool -> PeerInfo e -> m ()
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updatePeerInfo onError pinfo = do
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@ -356,6 +359,8 @@ updatePeerInfo onError pinfo = do
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void $ liftIO $ atomically $ do
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bu <- readTVar (view peerBurst pinfo)
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buMax <- readTVar (view peerBurstMax pinfo)
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buSet <- readTVar (view peerBurstSet pinfo)
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errs <- readTVar (view peerErrors pinfo)
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errsLast <- readTVar (view peerErrorsLast pinfo)
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t0 <- readTVar (view peerLastWatched pinfo)
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@ -367,22 +372,35 @@ updatePeerInfo onError pinfo = do
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let eps = floor (dE / dT)
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let bu1 = if (down - downLast > 0 || onError) then
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max 1 $ min defBurstMax
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$ if eps == 0 then
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ceiling $ realToFrac bu * 1.10 -- FIXME: to defaults
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else
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floor $ realToFrac bu * 0.55
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else
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max defBurst $ floor (realToFrac bu * 0.75)
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when (down - downLast > 0 || onError) do
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(bu1, bus) <- if eps == 0 then do
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let bmm = fromMaybe defBurstMax buMax
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let buN = min bmm (ceiling $ (realToFrac bu * 1.05))
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pure (buN, trimUp 50 $ IntSet.insert buN buSet)
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else do
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let buM = headMay $ drop 2 $ IntSet.toDescList buSet
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writeTVar (view peerBurstMax pinfo) buM
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-- let s = IntSet.size buSet
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let buN = defBurst -- atDef defBurst (IntSet.toList buSet) (s `div` 2 )
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pure (buN, trimDown 50 $ IntSet.insert buN buSet)
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writeTVar (view peerErrorsLast pinfo) errs
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writeTVar (view peerLastWatched pinfo) t1
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writeTVar (view peerErrorsPerSec pinfo) eps
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writeTVar (view peerBurst pinfo) bu1
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writeTVar (view peerBurstSet pinfo) bus
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writeTVar (view peerDownloadedLast pinfo) down
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where
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trimUp n s | IntSet.size s >= n = IntSet.deleteMin s
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| otherwise = s
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trimDown n s | IntSet.size s >= n = IntSet.deleteMax s
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| otherwise = s
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blockDownloadLoop :: forall e m . ( m ~ PeerM e IO
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, MonadIO m
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, Request e (BlockInfo e) m
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@ -416,7 +434,7 @@ blockDownloadLoop env0 = do
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void $ liftIO $ async $ forever $ withPeerM e do
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pause @'Seconds 2
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pause @'Seconds 5
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pee <- knownPeers @e pl
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npi <- newPeerInfo
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@ -430,7 +448,7 @@ blockDownloadLoop env0 = do
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-- TODO: peer info loop
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void $ liftIO $ async $ forever $ withPeerM e $ do
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pause @'Seconds 20
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pause @'Seconds 10
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pee <- knownPeers @e pl
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npi <- newPeerInfo
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@ -440,8 +458,10 @@ blockDownloadLoop env0 = do
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for_ pee $ \p -> do
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pinfo <- fetch True npi (PeerInfoKey p) id
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burst <- liftIO $ readTVarIO (view peerBurst pinfo)
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buM <- liftIO $ readTVarIO (view peerBurstMax pinfo)
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errors <- liftIO $ readTVarIO (view peerErrorsPerSec pinfo)
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debug $ "peer" <+> pretty p <+> "burst: " <+> pretty burst
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debug $ "peer" <+> pretty p <+> "burst:" <+> pretty burst
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<+> "burst-max:" <+> pretty buM
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<+> "errors:" <+> pretty errors
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pure ()
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@ -25,11 +25,14 @@ import Control.Concurrent.STM
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import Control.Monad
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import Control.Concurrent.Async
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import System.Random.Shuffle
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import Data.IntSet (IntSet)
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import Prettyprinter
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data PeerInfo e =
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PeerInfo
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{ _peerBurst :: TVar Int
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, _peerBurstMax :: TVar (Maybe Int)
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, _peerBurstSet :: TVar IntSet
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, _peerErrors :: TVar Int
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, _peerErrorsLast :: TVar Int
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, _peerErrorsPerSec :: TVar Int
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@ -46,6 +49,8 @@ makeLenses 'PeerInfo
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newPeerInfo :: MonadIO m => m (PeerInfo e)
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newPeerInfo = liftIO do
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PeerInfo <$> newTVarIO defBurst
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<*> newTVarIO Nothing
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<*> newTVarIO mempty
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<*> newTVarIO 0
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<*> newTVarIO 0
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<*> newTVarIO 0
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