parallel propagation benchmark

1 files changed, 3 insertions, 1 deletions

diff --git a/docs/development.md b/docs/development.md
index 70ba03f..0b424e3 100644
--- a/docs/development.md
+++ b/docs/development.md
@@ -22,7 +22,9 @@ messages, `document/bench.rs`), the remakes' replay (`remake/bench.rs`), and wha
 passing changes on costs over the simulated network (`simtest/bench.rs`: messages and
 bytes per write by kind, propagation delays, for a full mesh, a writer behind NAT, two
 transports and partial meshes of 50 and 100 nodes; several minutes, or one scenario
-alone with `BENCH_SCENARIO`, part of its name: `BENCH_SCENARIO=NAT`), and
+alone with `BENCH_SCENARIO`, part of its name: `BENCH_SCENARIO=NAT`; all at once with
+`BENCH_PARALLEL=1`, faster on many cores, though sharing them makes delays come out
+somewhat higher), and
 the same estimated on the member list's graph alone for up to 2000 members, with some
 links down, as now and along the writer's tree (`swarm/topology/tests.rs`,
 `bench_writer_trees`). One of