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⚡ Bolt: Batch producer wakeups in NAPI poll loop - #42

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bolt-napi-poll-optimization-6018448149178945375
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⚡ Bolt: Batch producer wakeups in NAPI poll loop#42
maxugly wants to merge 1 commit into
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bolt-napi-poll-optimization-6018448149178945375

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@maxugly

@maxugly maxugly commented Aug 4, 2026

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💡 What: Moved the producer wakeup call (nata_wake_tx_peer) outside of the ring buffer spinlock in the NAPI poll loop (nata_poll), using a boolean flag to track if a wakeup is needed.
🎯 Why: Calling netif_wake_queue inside a hotpath spinlock causes unnecessary lock contention and delays the consumer, reducing overall throughput.
📊 Impact: Reduces lock contention overhead on the producer/consumer ring buffers, increasing throughput for the virtual SATA interface.
🔬 Measurement: Simulated benchmark tests and kernel module compilation.


PR created automatically by Jules for task 6018448149178945375 started by @maxugly

Moved the producer wakeup call (`nata_wake_tx_peer`) outside of the
ring buffer spinlock in the NAPI poll loop (`nata_poll`). This reduces
lock contention and delays the consumer, increasing throughput.

Co-authored-by: maxugly <64644401+maxugly@users.noreply.github.com>
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Reviewing files that changed from the base of the PR and between 6d5b3ed and a1bdebc.

📒 Files selected for processing (2)
  • .jules/bolt.md
  • module/nata_net.c

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