Stake-Weighted Quality of Service
SWQoS is packet admission before execution.
SWQoS is a Solana networking feature for leader TPU traffic. With configured validator/RPC peers, a stake-weighted share of inbound packets can receive priority during congestion. It runs before priority-fee handling and before the normal transaction execution path.
Stake-weighted priority (SWQoS)
SWQoS allocates leader TPU admission by stake weight.
Solana leaders can reserve a stake-weighted share of TPU capacity for connections associated with stake. Other traffic uses the remaining capacity.
This happens before priority-fee handling and before runtime execution, so it is about which packets are admitted to the leader path during congestion.
For operators, SWQoS depends on configured validator/RPC peer relationships and the stake weight behind that path.
Network admission before execution
How leader TPU capacity is partitioned
Stake-weighted traffic can use the reserved TPU share before fee handling; other traffic shares the remaining capacity.
Current Solana guidance describes an 80 / 20 leader TPU split.
From the same team — in production
Everything above is the open Solana mechanism. Below is the production product the team ships on it.
Everything you need.A direct line to Solana.
RPC, Geyser gRPC, and Direct Shreds run on the network right next to Solana. You talk to the chain directly.
Built on real Solana operation