Cache::STATS_HITS => null,
Cache::STATS_MISSES => null,
Cache::STATS_UPTIME => null,
Cache::STATS_MEMORY_USAGE => $usage,
Cache::STATS_MEMORY_AVAILABLE => $free,
Cache::STATS_HITS => null,
Cache::STATS_MISSES => null,
Cache::STATS_UPTIME => null,
Cache::STATS_MEMORY_USAGE => $usage,
Cache::STATS_MEMORY_AVAILABLE => $free,