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Cap DotNetty Threads #7134

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Jun 4, 2024
Merged

Cap DotNetty Threads #7134

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10 changes: 7 additions & 3 deletions src/Nethermind/Nethermind.Network/Rlpx/RlpxHost.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,6 @@
using Nethermind.Network.P2P.EventArg;
using Nethermind.Network.Rlpx.Handshake;
using Nethermind.Stats.Model;
using ILogger = Nethermind.Logging.InterfaceLogger;
using LogLevel = DotNetty.Handlers.Logging.LogLevel;

namespace Nethermind.Network.Rlpx
Expand Down Expand Up @@ -105,8 +104,13 @@ public async Task Init()

try
{
_bossGroup = new MultithreadEventLoopGroup();
_workerGroup = new MultithreadEventLoopGroup();
// Default is LogicalCoreCount * 2
// - so with two groups and 32 logical cores, we would have 128 threads
// Max at 8 threads per group for 16 threads total
// Min of 2 threads per group for 4 threads total
var threads = Math.Clamp(Environment.ProcessorCount / 2, min: 2, max: 8);
_bossGroup = new MultithreadEventLoopGroup(threads);
_workerGroup = new MultithreadEventLoopGroup(threads);

ServerBootstrap bootstrap = new();
bootstrap
Expand Down