diff --git a/src/applications/cache/spec/PhabricatorCacheSpec.php b/src/applications/cache/spec/PhabricatorCacheSpec.php
--- a/src/applications/cache/spec/PhabricatorCacheSpec.php
+++ b/src/applications/cache/spec/PhabricatorCacheSpec.php
@@ -7,6 +7,10 @@
   private $version;
   private $issues = array();
 
+  private $usedMemory = 0;
+  private $totalMemory = 0;
+  private $entryCount = null;
+
   public function setName($name) {
     $this->name = $name;
     return $this;
@@ -50,4 +54,33 @@
     return $this->issues;
   }
 
+  public function setUsedMemory($used_memory) {
+    $this->usedMemory = $used_memory;
+    return $this;
+  }
+
+  public function getUsedMemory() {
+    return $this->usedMemory;
+  }
+
+  public function setTotalMemory($total_memory) {
+    $this->totalMemory = $total_memory;
+    return $this;
+  }
+
+  public function getTotalMemory() {
+    return $this->totalMemory;
+  }
+
+  public function setEntryCount($entry_count) {
+    $this->entryCount = $entry_count;
+    return $this;
+  }
+
+  public function getEntryCount() {
+    return $this->entryCount;
+  }
+
+
+
 }
diff --git a/src/applications/cache/spec/PhabricatorDataCacheSpec.php b/src/applications/cache/spec/PhabricatorDataCacheSpec.php
--- a/src/applications/cache/spec/PhabricatorDataCacheSpec.php
+++ b/src/applications/cache/spec/PhabricatorDataCacheSpec.php
@@ -21,6 +21,7 @@
 
     if (ini_get('apc.enabled')) {
       $spec->setIsEnabled(true);
+      self::getAPCCommonSpec($spec);
     } else {
       $spec->setIsEnabled(false);
       $spec->newIssue(
@@ -41,6 +42,7 @@
 
     if (ini_get('apc.enabled')) {
       $spec->setIsEnabled(true);
+      self::getAPCCommonSpec($spec);
     } else {
       $spec->setIsEnabled(false);
       $spec->newissue(
@@ -70,4 +72,13 @@
     return $spec;
   }
 
+  private static function getAPCCommonSpec(PhabricatorDataCacheSpec $spec) {
+    $mem = apc_sma_info();
+    $spec->setTotalMemory($mem['num_seg'] * $mem['seg_size']);
+
+    $info = apc_cache_info('user');
+    $spec->setUsedMemory($info['mem_size']);
+    $spec->setEntryCount(count($info['cache_list']));
+  }
+
 }
diff --git a/src/applications/cache/spec/PhabricatorOpcodeCacheSpec.php b/src/applications/cache/spec/PhabricatorOpcodeCacheSpec.php
--- a/src/applications/cache/spec/PhabricatorOpcodeCacheSpec.php
+++ b/src/applications/cache/spec/PhabricatorOpcodeCacheSpec.php
@@ -21,6 +21,12 @@
 
     if (ini_get('apc.enabled')) {
       $spec->setIsEnabled(true);
+
+      $mem = apc_sma_info();
+      $spec->setTotalMemory($mem['num_seg'] * $mem['seg_size']);
+
+      $info = apc_cache_info();
+      $spec->setUsedMemory($info['mem_size']);
     } else {
       $spec->setIsEnabled(false);
       $spec->newIssue(
@@ -41,6 +47,16 @@
 
     if (ini_get('opcache.enable')) {
       $spec->setIsEnabled(true);
+
+      $status = opcache_get_status();
+      $memory = $status['memory_usage'];
+
+      $mem_used = $memory['used_memory'];
+      $mem_free = $memory['free_memory'];
+      $mem_junk = $memory['wasted_memory'];
+      $spec->setUsedMemory($mem_used + $mem_junk);
+      $spec->setTotalMemory($mem_used + $mem_junk + $mem_free);
+      $spec->setEntryCount($status['opcache_statistics']['num_cached_keys']);
     } else {
       $spec->setIsEnabled(false);
       $spec->newissue(
diff --git a/src/applications/config/check/PhabricatorAPCSetupCheck.php b/src/applications/config/check/PhabricatorAPCSetupCheck.php
--- a/src/applications/config/check/PhabricatorAPCSetupCheck.php
+++ b/src/applications/config/check/PhabricatorAPCSetupCheck.php
@@ -40,10 +40,11 @@
     }
 
     $is_dev = PhabricatorEnv::getEnvConfig('phabricator.developer-mode');
+    $is_apcu = extension_loaded('apcu');
     $is_stat_enabled = ini_get('apc.stat');
 
     $issue_key = null;
-    if ($is_stat_enabled && !$is_dev) {
+    if ($is_stat_enabled && !$is_dev && !$is_apcu) {
       $issue_key = 'extension.apc.stat-enabled';
       $short = pht("'apc.stat' Enabled");
       $long = pht("'apc.stat' Enabled in Production");
@@ -56,7 +57,7 @@
         "updates safer (PHP won't read in the middle of a 'git pull').\n\n".
         "(If you are developing for Phabricator, leave 'apc.stat' enabled but ".
         "enable 'phabricator.developer-mode'.)");
-    } else if (!$is_stat_enabled && $is_dev) {
+    } else if (!$is_stat_enabled && $is_dev && !$is_apcu) {
       $issue_key = 'extension.apc.stat-disabled';
       $short = pht("'apc.stat' Disabled");
       $long = pht("'apc.stat' Disabled in Development");
diff --git a/src/applications/config/controller/PhabricatorConfigCacheController.php b/src/applications/config/controller/PhabricatorConfigCacheController.php
--- a/src/applications/config/controller/PhabricatorConfigCacheController.php
+++ b/src/applications/config/controller/PhabricatorConfigCacheController.php
@@ -79,6 +79,32 @@
     if ($version) {
       $properties->addProperty(pht('Version'), $this->renderInfo($version));
     }
+
+    if ($cache->getName() === null) {
+      return;
+    }
+
+    $mem_total = $cache->getTotalMemory();
+    $mem_used = $cache->getUsedMemory();
+
+    if ($mem_total) {
+      $percent = 100 * ($mem_used / $mem_total);
+
+      $properties->addProperty(
+        pht('Memory Usage'),
+        pht(
+          '%s of %s',
+          phutil_tag('strong', array(), sprintf('%.1f%%', $percent)),
+          phutil_format_bytes($mem_total)));
+    }
+
+    $entry_count = $cache->getEntryCount();
+    if ($entry_count !== null) {
+      $properties->addProperty(
+        pht('Cache Entries'),
+        pht('%s', new PhutilNumber($entry_count)));
+    }
+
   }
 
   private function renderIssues(array $issues) {