From: Artem Boldariev <artem@boldariev.com>
Date: Tue, 25 Feb 2025 17:58:24 +0000 (+0200)
Subject: DoH: Bump the active streams processing limit
X-Git-Tag: ondrej/lock-free-qpzone-reads-v1~10^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=eaad0aefe668408d8ae0792796852cc7bccaff0f;p=thirdparty%2Fbind9.git

DoH: Bump the active streams processing limit

This commit bumps the total number of active streams (= the opened
streams for which a request is received, but response is not ready) to
60% of the total streams limit.

The previous limit turned out to be too tight as revealed by
longer (≥1h) runs of "stress:long:rpz:doh+udp:linux:*" tests.
---

diff --git a/lib/isc/netmgr/http.c b/lib/isc/netmgr/http.c
index b1ed237a0be..24210c05725 100644
--- a/lib/isc/netmgr/http.c
+++ b/lib/isc/netmgr/http.c
@@ -1583,7 +1583,7 @@ http_too_many_active_streams(isc_nm_http_session_t *session) {
 	 */
 	const uint64_t max_active_streams =
 		ISC_MAX(ISC_NETMGR_MAX_STREAM_CLIENTS_PER_CONN,
-			session->max_concurrent_streams / 3);
+			(session->max_concurrent_streams * 6) / 10); /* 60% */
 
 	if (session->client) {
 		return false;