Samples: 842K of event 'cycles', 4000 Hz, Event count (approx.): 512843921003
Overhead  Shared Object          Symbol
  14.32%  postgres               [.] heap_page_prune
   9.87%  libc-2.31.so           [.] __memmove_avx_unaligned_erms
   7.45%  [kernel]               [k] finish_task_switch
   5.12%  postgres               [.] ExecScanHashBucket
   3.98%  libjson.so.1           [.] json_parse_value
   2.64%  [kernel]               [k] copy_user_enhanced_fast_string
