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io_uring: opt-in path for Netlinker + destinations #10

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Merged
randomizedcoder merged 4 commits into from
Jun 4, 2026
Merged

io_uring: opt-in path for Netlinker + destinations #10

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f280f88
io_uring package: ring lifecycle, codec, tests, benchmarks
randomizedcoder May 13, 2026
6993e05
io_uring opt-in path: Netlinker, destinations, CLI flag
randomizedcoder May 13, 2026
63bb903
Fix TestDeserialize + BenchmarkDeserialize (broken since initial commit)
randomizedcoder May 13, 2026
cc8a04f
io_uring: detect ETIME via errors.Is to handle wrapped errnos
randomizedcoder Jun 3, 2026
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8 changes: 8 additions & 0 deletions cmd/xtcp2/xtcp2.go
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Original file line number Diff line number Diff line change
Expand Up @@ -174,6 +174,10 @@ func main() {

d := flag.Uint("d", debugLevelCst, "debug level")

ioUring := flag.Bool("ioUring", false, "Opt in to io_uring for netlink reads and raw-socket destination writes (Linux 6.1+)")
ioUringRecvBatch := flag.Uint("ioUringRecvBatch", 64, "io_uring recvmsg SQEs kept in flight per Netlinker (1-4096). Higher reduces syscalls on high-fanout hosts.")
ioUringCqeBatch := flag.Uint("ioUringCqeBatch", 128, "io_uring max CQEs reaped per PeekBatchCQE call (1-4096)")

flag.Parse()

// Print version information passed in via ldflags in the Makefile
Expand Down Expand Up @@ -240,6 +244,10 @@ func main() {
Tag: *tag,
GrpcPort: uint32(*grpcPort),
EnabledDeserializers: des,

IoUring: *ioUring,
IoUringRecvBatchSize: uint32(*ioUringRecvBatch),
IoUringCqeBatchSize: uint32(*ioUringCqeBatch),
}

if debugLevel > 100 {
Expand Down
53 changes: 53 additions & 0 deletions dart/xtcp_config/v1/xtcp_config.pb.dart
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12 changes: 9 additions & 3 deletions dart/xtcp_config/v1/xtcp_config.pbjson.dart
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