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perf: reduce logging

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This commit is contained in:
Greg Heartsfield 2022-12-18 22:11:46 -06:00
parent 462eb46642
commit d833a3e40d
1 changed files with 15 additions and 7 deletions
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22
src/db.rs
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@ -636,9 +636,16 @@ pub async fn db_query(
query_tx: tokio::sync::mpsc::Sender<QueryResult>, query_tx: tokio::sync::mpsc::Sender<QueryResult>,
mut abandon_query_rx: tokio::sync::oneshot::Receiver<()>, mut abandon_query_rx: tokio::sync::oneshot::Receiver<()>,
) { ) {
let start = Instant::now(); let pre_spawn_start = Instant::now();
task::spawn_blocking(move || { task::spawn_blocking(move || {
debug!("moved DB query to thread in {:?}", start.elapsed()); let db_queue_time = pre_spawn_start.elapsed();
// report queuing time if it is slow
if db_queue_time > Duration::from_secs(1) {
debug!(
"(slow) DB query queued for {:?} (cid: {}, sub: {:?})",
db_queue_time, client_id, sub.id
);
}
let start = Instant::now(); let start = Instant::now();
let mut row_count: usize = 0; let mut row_count: usize = 0;
// generate SQL query // generate SQL query
@ -667,12 +674,12 @@ pub async fn db_query(
} }
// logging for slow queries; show sub and SQL. // logging for slow queries; show sub and SQL.
// to reduce logging; only show 1/16th of clients (leading 0) // to reduce logging; only show 1/16th of clients (leading 0)
if slow_first_event && client_id.starts_with('0') { if slow_first_event && client_id.starts_with("00") {
info!( debug!(
"query req (slow): {:?} (cid: {}, sub: {:?})", "query req (slow): {:?} (cid: {}, sub: {:?})",
sub, client_id, sub.id sub, client_id, sub.id
); );
info!( debug!(
"query string (slow): {} (cid: {}, sub: {:?})", "query string (slow): {} (cid: {}, sub: {:?})",
q, client_id, sub.id q, client_id, sub.id
); );
@ -711,10 +718,11 @@ pub async fn db_query(
}) })
.ok(); .ok();
debug!( debug!(
"query completed in {:?} (cid: {}, sub: {:?}, rows: {})", "query completed in {:?} (cid: {}, sub: {:?}, db_time: {:?}, rows: {})",
start.elapsed(), pre_spawn_start.elapsed(),
client_id, client_id,
sub.id, sub.id,
start.elapsed(),
row_count row_count
); );
} else { } else {