--- title: "UDP Load Comparison" --- > Documentation Index > Fetch the complete documentation index at: https://openarkstudio.github.io/arknet/llms.txt > Use this file to discover all available pages before exploring further. # UDP Load Comparison Local measurements on 2026-10-12: 216 runs, 62 valid configurations and 10 failed configurations. [Machine, source and buffer diagnosis](/arknet/performance/udp-update). 16 clients; 64/1024/16384-byte messages; windows 1/4/16/64; three repetitions per configuration. ## No extra application computation ![Round-trip throughput](/arknet/performance/assets/dimensions-udp-throughput.svg) ![Bidirectional application payload throughput](/arknet/performance/assets/dimensions-udp-payload.svg) ![Message p99 RTT](/arknet/performance/assets/dimensions-udp-latency.svg) - Standalone Asio: At 1024 bytes, the highest throughput median uses 1 context / 1 thread, window 4; the lowest p99 median uses 1 context / 1 thread, window 1. - Boost.Asio: At 1024 bytes, the highest throughput median uses 1 context / 1 thread, window 1; the lowest p99 median uses 1 context / 1 thread, window 1. [Complete numeric JSON (p95, run ranges and failures)](/arknet/performance/udp-dimensions-summary.json) ## Failed Profiles | Dependency / execution | Payload bytes / window | Thread model | Application computation | Failure | | --- | --- | --- | --- | --- | | Boost.Asio / callback | 16384 / 16 | 4 contexts / one thread each | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1, Warmup errors: 2; #2: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1; #3: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1, Warmup errors: 2 | | Boost.Asio / callback | 16384 / 16 | 1 context / 4 threads | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1, Warmup errors: 2; #2: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1; #3: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1 | | Boost.Asio / callback | 16384 / 64 | 4 contexts / one thread each | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 769; #2: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 769; #3: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 769 | | Boost.Asio / callback | 16384 / 64 | 1 context / 1 thread | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 767, Drain timeouts: 1, Warmup errors: 768; #2: benchmark failed with exit code 1; UDP lost messages: 767, Drain timeouts: 1, Warmup errors: 768; #3: benchmark failed with exit code 1; UDP lost messages: 767, Drain timeouts: 1, Warmup errors: 768 | | Boost.Asio / callback | 16384 / 64 | 1 context / 4 threads | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 769; #2: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 770; #3: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 770 | | Standalone Asio / callback | 16384 / 16 | 4 contexts / one thread each | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1, Warmup errors: 2; #2: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1, Warmup errors: 2; #3: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1 | | Standalone Asio / callback | 16384 / 16 | 1 context / 4 threads | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1; #2: benchmark failed with exit code 1; Warmup errors: 2; #3: benchmark failed with exit code 1; UDP lost messages: 1, Drain timeouts: 1, Warmup errors: 2 | | Standalone Asio / callback | 16384 / 64 | 4 contexts / one thread each | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 770; #2: benchmark failed with exit code 1; UDP lost messages: 768, Drain timeouts: 1, Warmup errors: 770; #3: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 770 | | Standalone Asio / callback | 16384 / 64 | 1 context / 1 thread | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 767, Drain timeouts: 1, Warmup errors: 768; #2: benchmark failed with exit code 1; UDP lost messages: 767, Drain timeouts: 1, Warmup errors: 768; #3: benchmark failed with exit code 1; UDP lost messages: 767, Drain timeouts: 1, Warmup errors: 768 | | Standalone Asio / callback | 16384 / 64 | 1 context / 4 threads | No extra application computation | #1: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 770; #2: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 769; #3: benchmark failed with exit code 1; UDP lost messages: 769, Drain timeouts: 1, Warmup errors: 770 | If any repetition fails, all three measurements for that profile are excluded from rate, latency and matched-ratio summaries; raw failures are retained. Larger UDP windows can lose traffic; profiles with loss are failed measurements, not capacity results. The server still receives through one serialized socket. [Metrics, statistics and reproduction](/arknet/performance/methodology) Source: https://openarkstudio.github.io/arknet/performance/dimensions-udp/index.mdx