2.38%  postgres  postgres            [.] AllocSetAlloc
     0.37%  postgres  postgres            [.] pfree
     0.31%  postgres  postgres            [.] palloc
     0.12%  postgres  postgres            [.] MemoryContextAlloc
     0.12%  postgres  postgres            [.] AllocSetAllocCarveOldAndAlloc.isra.0
     0.10%  postgres  postgres            [.] MemoryContextAllocZero
     0.10%  postgres  postgres            [.] palloc0
     0.06%  postgres  postgres            [.] MemoryContextAllocZeroAligned
     0.02%  postgres  postgres            [.] AllocSetAllocLarge