Add virtual-threads-benchmark-webflux: the WebFlux leg of the three-way benchmark

Re-uses the platform/virtual-thread transcripts already committed in
virtual-threads-benchmark rather than re-measuring them, and adds a WebFlux
module measured the same way (client-side java.net.http.HttpClient load
generator against a real Netty server). Covers I/O-bound throughput, a
naive-vs-offloaded CPU-bound comparison that turned up a real, counter-
intuitive fact about this sandbox's default thread-pool sizes
(LoopResources.DEFAULT_IO_WORKER_COUNT=4 vs Schedulers.parallel()'s
availableProcessors()=2), and an event-loop-starvation scenario showing
what the naive endpoint actually costs unrelated /io traffic on the same
server. Companion code for the ankurm.com post "Virtual Threads vs WebFlux
vs Platform Threads: Benchmarks and a Decision Framework." Also fixes the
root README's module table, which was missing the virtual-threads-benchmark
row from an earlier commit.

This commit is contained in:

Claude

2026-09-19 08:31:51 +00:00

parent f506b01389

commit c462fcb663

17 changed files with 733 additions and 0 deletions

virtual-threads-benchmark-webflux/.gitignore

View File

@@ -0,0 +1,4 @@
 target/
 *.class
 .idea/
 *.iml