XHProf: Hierarchical Profiler Report

Diff Report: Run #5197310fa6a63: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #51972fb0786ef: XHProf Run (Namespace=drupal-perf-steveoliver)
Tip: Click a function name below to drill down.

Regression/Improvement summary for strtolower

strtolower	Run #5197310fa6a63	Run #51972fb0786ef	Diff	Diff%
Number of Function Calls	2,936	2,883	-53	-1.8%
Incl. Wall Time (microsec)	137,051	134,435	-2,616	-1.9%
Incl. Wall Time (microsec) per call	47	47	-0	-0.1%
Excl. Wall Time (microsec)	137,051	134,435	-2,616	-1.9%
Incl. CPU (microsecs)	8,001	24,003	16,002	200.0%
Incl. CPU (microsecs) per call	3	8	6	205.5%
Excl. CPU (microsec)	8,001	24,003	16,002	200.0%
Incl. MemUse (bytes)	229,992	227,000	-2,992	-1.3%
Incl. MemUse (bytes) per call	78	79	0	0.5%
Excl. MemUse (bytes)	229,992	227,000	-2,992	-1.3%
Incl. PeakMemUse (bytes)	17,520	17,384	-136	-0.8%
Incl. PeakMemUse (bytes) per call	6	6	0	1.0%
Excl. PeakMemUse (bytes)	17,520	17,384	-136	-0.8%

Parent/Child Regression/Improvement report for strtolower [View Callgraph Diff]

Function Name	Calls Diff	Calls Diff%	Incl. Wall Diff (microsec)	IWall Diff%	Incl. CPU Diff (microsec)	ICpu Diff%	Incl. MemUse Diff (bytes)	IMemUse Diff%	Incl. PeakMemUse Diff (bytes)	IPeakMemUse Diff%
*Current Function*
strtolower	-53	-100.0%	-2,616	-0.9%	16,002	66.7%	-2,992	-0.2%	-136	-0.0%
Exclusive Metrics Diff for Current Function			-2,616	-100.0%	16,002	100.0%	-2,992	-100.0%	-136	-100.0%
*Parent functions*
Symfony\Component\DependencyInjection\Container::get	-51	-96.2%	-2,605	-99.6%	12,000	75.0%	-2,856	-95.5%	0	0.0%
Symfony\Component\DependencyInjection\Container::get@1	-2	-3.8%	-130	-5.0%	0	0.0%	-136	-4.5%	-136	-100.0%
Symfony\Component\DependencyInjection\Container::has	0	0.0%	118	4.5%	1	0.0%	0	0.0%	0	0.0%
Symfony\Component\DependencyInjection\Container::get@3	0	0.0%	12	0.5%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\HeaderBag::set	0	0.0%	-7	-0.3%	0	0.0%	0	0.0%	0	0.0%
_drupal_set_preferred_header_name	0	0.0%	-7	-0.3%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ResponseHeaderBag::set	0	0.0%	6	0.2%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\DependencyInjection\Container::get@2	0	0.0%	-5	-0.2%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::getHost	0	0.0%	5	0.2%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\DependencyInjection\Container::get@6	0	0.0%	-4	-0.2%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\DependencyInjection\Container::get@5	0	0.0%	4	0.2%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::isSecure	0	0.0%	-4	-0.2%	4,001	25.0%	0	0.0%	0	0.0%
drupal_add_http_header	0	0.0%	3	0.1%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\DependencyInjection\Container::initialized	0	0.0%	-3	-0.1%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\DependencyInjection\Container::get@8	0	0.0%	-3	-0.1%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\HeaderBag::has	0	0.0%	3	0.1%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\RequestContext::setScheme	0	0.0%	3	0.1%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\RequestContext::__construct	0	0.0%	-2	-0.1%	0	0.0%	0	0.0%	0	0.0%
drupal_environment_initialize	0	0.0%	-2	-0.1%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\DependencyInjection\Container::get@4	0	0.0%	-2	-0.1%	0	0.0%	0	0.0%	0	0.0%
service_container_prod_::getParameter	0	0.0%	1	0.0%	0	0.0%	0	0.0%	0	0.0%
drupal_strip_dangerous_protocols	0	0.0%	1	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\HeaderBag::get	0	0.0%	-1	-0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\HeaderBag::parseCacheControl	0	0.0%	1	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\DependencyInjection\Container::get@7	0	0.0%	1	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\views\Plugin\views\query\Sql::add_field	0	0.0%	1	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\DependencyInjection\Container::set	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
drupal_send_headers	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%