0001918: Warn if PHP's Garbage Collection is disabled in gc_stats mode

ID	Project	Category	View Status	Date Submitted	Last Update
0001918	Xdebug	Profiling	public	2020-12-18 09:56	2020-12-18 13:49

Reporter	llaville	Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	closed	Resolution	fixed
Product Version	3.0.1
Target Version	3.0dev	Fixed in Version	3.0.2

Summary	0001918: Warn if PHP's Garbage Collection is disabled in gc_stats mode
Description	I've tried the xdebug.mode = gcstats and got an empty report Garbage Collection Report version: 1 creator: xdebug 3.0.1 (PHP 7.3.25) `Collected \| Efficiency% \| Duration \| Memory Before \| Memory After \| Reduction% \| Function ----------+-------------+----------+---------------+--------------+------------+---------` The reason is : I've a gc_disable(); statement in my CLI script ! It will be pretty good if we have a warning about this status to avoid loosing time to search where it come from. Thanks
Tags	No tags attached.

Operating System
PHP Version	7.3.20-7.3.29

derick 2020-12-18 13:25 administrator ~0005597	https://github.com/xdebug/xdebug/pull/709

derick 2020-12-18 13:49 administrator ~0005598	This is fixed for Xdebug 3.0.2, but only for PHP 7.3 and later (due to limitations in PHP). If GC is not enabled at either the start of a request or the end, Xdebug will send a warning to PHP's error log, and Xdebug's diagnostics log.