fix cache clear

Author: nekufa

src/Repository.php

@@ -12,7 +12,6 @@ class Repository
     private $original = [];
     private $keys;
 
-    private $cache = [];
     private $results = [];
 
     public function __construct(Space $space)
@@ -210,7 +209,6 @@ public function update(Entity $instance, $operations)
 
     public function truncate()
     {
-        $this->cache = [];
         $this->results = [];
         $id = $this->space->getId();
         $this->space->getMapper()->getClient()->evaluate("box.space[$id]:truncate()");
@@ -259,7 +257,6 @@ public function removeEntity(Entity $instance)
         unset($this->original[$key]);
 
         $this->results = [];
-        $this->cache = [];
     }
 
     public function save($instance)
@@ -328,6 +325,6 @@ public function save($instance)
 
     public function flushCache()
     {
-        $this->cache = [];
+        $this->results = [];
     }
 }

tests/PerformanceTest.php

@@ -22,19 +22,19 @@ public function test()
             ->addIndex('id');
 
 
-        $this->exec('create', 2000,  function(Mapper $mapper) {
+        $this->exec('create', 1000,  function(Mapper $mapper) {
             foreach(range(1, $this->counter) as $id) {
                 $mapper->create('tester', [$id, "text for $id"]);
             }
         });
 
-        $this->exec('read ony by one', 20000,  function(Mapper $mapper) {
+        $this->exec('read ony by one', 10000,  function(Mapper $mapper) {
             foreach(range(1, $this->counter) as $id) {
                 $mapper->findOne('tester', $id);
             }
         });
 
-        $this->exec('mass read', 200000,  function(Mapper $mapper) {
+        $this->exec('mass read', 100000,  function(Mapper $mapper) {
             $mapper->find('tester');
         });
     }