Measure a link at rest: 132 bytes against a QUIC connection's 38,106 (094)

M1 of design 011. A Pure node allows 1,000 to 1,000,000 senders; each
sends one order and, once told it is stored, rests. At rest a link costs
the node 132 bytes (the sender allowed, 73; its number heard, about 60)
and no transport state; with a million the node runs in 139 MB. A quinn
0.11 service holding the same exchange's clients connected at rest costs
38,106 bytes a connection: 289 times as much, past the design's 1/100.
A link at rest takes its next record in 0.56 ms to stored, one X25519 on
the node included; a new QUIC connection takes 1.06 ms and 2.8 times the
receiver's CPU, without storing.

research/experiments/019-idle-links: links.c, many senders written from
serve/link.h's packet format alone (a second implementation), and the
quinn service and clients (quic/, built offline); run.py makes both
measurements.

1 files changed, 18 insertions, 0 deletions

diff --git a/research/experiments/019-idle-links/quic/Cargo.toml b/research/experiments/019-idle-links/quic/Cargo.toml
new file mode 100644
index 0000000..cc0f527
--- /dev/null
+++ b/research/experiments/019-idle-links/quic/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+name = "idle-quic"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+# The QUIC side of M1 (../run.py, docs/design/011-pure-transport.md): quinn
+# 0.11 with rustls and ring, as a Rust service would use it.
+[dependencies]
+quinn = { version = "0.11", default-features = false, features = ["rustls-ring", "runtime-tokio"] }
+rustls = { version = "0.23", default-features = false, features = ["ring", "std"] }
+tokio = { version = "1", features = ["rt", "rt-multi-thread", "macros", "time", "net", "sync", "io-util", "io-std"] }
+ring = "0.17"
+
+[profile.release]
+debug = 1
+
+[workspace]