Commit 17101fd0 authored by Michał Kępień's avatar Michał Kępień

Make ISC rwlock implementation the default again

Revert the change from ad03c22e as
further testing has shown that with hyper-threading disabled, named with
ISC rwlocks outperforms named with pthread rwlocks in cold cache testing
scenarios.  Since building named with pthread rwlocks might still be a
better choice for some workloads, keep the compile-time option which
enables that.
parent 8471206b
......@@ -1624,9 +1624,8 @@ Optional Features:
--enable-devpoll use /dev/poll when available [default=yes]
--disable-geoip support GeoIP2 geolocation ACLs if available
[default=yes]
--disable-pthread-rwlock
use internal rwlock implementation instead of
pthread rwlock
--enable-pthread-rwlock use pthread rwlock instead of internal rwlock
implementation
--enable-fips-mode enable FIPS mode in OpenSSL library [default=no]
--enable-native-pkcs11 use native PKCS11 for public-key crypto [default=no]
--disable-tcp-fastopen disable TCP Fast Open support [default=yes]
......@@ -16001,7 +16000,7 @@ done
if test "${enable_pthread_rwlock+set}" = set; then :
enableval=$enable_pthread_rwlock;
else
enable_pthread_rwlock=yes
enable_pthread_rwlock=no
fi
......
......@@ -685,9 +685,9 @@ AC_SUBST(ALWAYS_DEFINES)
# Do we want to use pthread rwlock?
#
AC_ARG_ENABLE([pthread_rwlock],
[AS_HELP_STRING([--disable-pthread-rwlock],
[use internal rwlock implementation instead of pthread rwlock])],
[], [enable_pthread_rwlock=yes])
[AS_HELP_STRING([--enable-pthread-rwlock],
[use pthread rwlock instead of internal rwlock implementation])],
[], [enable_pthread_rwlock=no])
AS_IF([test "$enable_pthread_rwlock" = "yes"],
[AC_CHECK_FUNCS([pthread_rwlock_rdlock], [],
......
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