Backported from PHP 7 for PHP 5 by Remi From 0c78fe4bb55a9d39afc79cbcbadb9a273f2ec2ef Mon Sep 17 00:00:00 2001 From: Dmitry Stogov Date: Fri, 18 Nov 2016 13:19:30 +0300 Subject: [PATCH] Disabled PHP call tracing by default (it makes significant overhead). This may be enabled again using envirionment variable USE_ZEND_DTRACE=1. --- NEWS | 5 +++++ Zend/zend.c | 16 +++++++++++++--- 2 files changed, 18 insertions(+), 3 deletions(-) diff --git a/Zend/zend.c b/Zend/zend.c index d036152..87cdead 100644 --- a/Zend/zend.c +++ b/Zend/zend.c @@ -682,9 +682,19 @@ int zend_startup(zend_utility_functions *utility_functions, char **extensions) / #if HAVE_DTRACE /* build with dtrace support */ - zend_compile_file = dtrace_compile_file; - zend_execute_ex = dtrace_execute_ex; - zend_execute_internal = dtrace_execute_internal; + { + char *tmp = getenv("USE_ZEND_DTRACE"); + + if (tmp && zend_atoi(tmp, 0)) { + zend_compile_file = dtrace_compile_file; + zend_execute_ex = dtrace_execute_ex; + zend_execute_internal = dtrace_execute_internal; + } else { + zend_compile_file = compile_file; + zend_execute_ex = execute_ex; + zend_execute_internal = NULL; + } + } #else zend_compile_file = compile_file; zend_execute_ex = execute_ex; -- 2.1.4