IPA bench: log random seed and runtime at info level

ipa-core/benches/oneshot/ipa.rs

@@ -1,4 +1,5 @@
 use std::{
+    env,
     num::{NonZeroU32, NonZeroU64, NonZeroUsize},
     time::Instant,
 };
@@ -102,9 +103,11 @@ async fn run(args: Args) -> Result<(), Error> {
         gateway_config: GatewayConfig::new(args.active()),
         ..TestWorldConfig::default()
     };
+    // Construct TestWorld early to initialize logging.
+    let world = TestWorld::new_with(&config);
 
     let seed = args.random_seed.unwrap_or_else(|| random());
-    tracing::trace!(
+    tracing::info!(
         "Using random seed: {seed} for {q} records",
         q = args.query_size
     );
@@ -154,12 +157,11 @@ async fn run(args: Args) -> Result<(), Error> {
         &order,
     );
 
-    let world = TestWorld::new_with(config.clone());
     tracing::trace!("Preparation complete in {:?}", _prep_time.elapsed());
 
     let _protocol_time = Instant::now();
     test_oprf_ipa::<BenchField>(&world, raw_data, &expected_results, args.config()).await;
-    tracing::trace!(
+    tracing::info!(
         "{m:?} IPA for {q} records took {t:?}",
         m = args.mode,
         q = args.query_size,
@@ -172,6 +174,12 @@ fn main() -> Result<(), Error> {
     #[cfg(feature = "dhat-heap")]
     let _profiler = dhat::Profiler::new_heap();
 
+    // The default in test_fixture::logging is to enable logging for ipa-core only. Override that to
+    // include logs from the bench as well.
+    if env::var_os("RUST_LOG").is_none() {
+        env::set_var("RUST_LOG", format!("{}=INFO,{}=INFO", ipa_core::CRATE_NAME, env!("CARGO_CRATE_NAME")));
+    }
+
     let args = Args::parse();
     let rt = Builder::new_multi_thread()
         .worker_threads(args.threads)

ipa-core/src/lib.rs

@@ -145,6 +145,8 @@ pub(crate) mod test_executor {
     }
 }
 
+pub const CRATE_NAME: &'static str = env!("CARGO_CRATE_NAME");
+
 #[macro_export]
 macro_rules! const_assert {
     ($x:expr $(,)?) => {