460 successful queries.
Memory stats:
{ rss: 250523648, heapTotal: 256133824, heapUsed: 226484224 }

940 successful queries.
Memory stats:
{ rss: 546824192, heapTotal: 533091840, heapUsed: 504648624 }

1340 successful queries.
Memory stats:
{ rss: 685088768, heapTotal: 671567872, heapUsed: 663440968 }

// after delete ev.dom :/
460 successful queries.
Memory stats:
{ rss: 245485568, heapTotal: 233160768, heapUsed: 224313272 }