From 9db63522643daafca581bef9c6e02c19f521131f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Witold=20Kr=C4=99cicki?= <wpk@isc.org>
Date: Wed, 15 Apr 2020 22:39:01 +0200
Subject: [PATCH] tuning

---
 lib/isc/rwlock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/isc/rwlock.c b/lib/isc/rwlock.c
index 594dfeb054..1ca1ea3df3 100644
--- a/lib/isc/rwlock.c
+++ b/lib/isc/rwlock.c
@@ -38,7 +38,7 @@ isc_rwlock_init(isc_rwlock_t *rwl, unsigned int read_quota,
 	UNUSED(write_quota);
 	if (1) {
 		pthread_rwlockattr_t attr;
-		pthread_rwlockattr_setkind_np(&attr, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP);
+		pthread_rwlockattr_setkind_np(&attr, PTHREAD_RWLOCK_PREFER_READER_NP);
 		REQUIRE(pthread_rwlock_init(&rwl->rwlock, &attr) == 0);
 	} else {
 		REQUIRE(pthread_rwlock_init(&rwl->rwlock, NULL) == 0);
@@ -141,7 +141,7 @@ isc_rwlock_destroy(isc_rwlock_t *rwl) {
 #endif /* ifndef RWLOCK_DEFAULT_WRITE_QUOTA */
 
 #ifndef RWLOCK_MAX_ADAPTIVE_COUNT
-#define RWLOCK_MAX_ADAPTIVE_COUNT 200
+#define RWLOCK_MAX_ADAPTIVE_COUNT 100
 #endif /* ifndef RWLOCK_MAX_ADAPTIVE_COUNT */
 
 #if defined(_MSC_VER)