Abstract: Systems and methods are disclosed including a memory device and a processing device operatively coupled to the memory device. The processing device can perform operations comprising receiving, from a host system, a memory access command; responsive to determining that the memory access command is a program command, incrementing a consecutive counter value; determining whether the consecutive counter value satisfies a threshold criterion; responsive to determining that the consecutive counter value satisfies a threshold criterion, and setting an initial polling timer to a value associated the consecutive counter value satisfying the threshold criterion.

Abstract: A efficient large-scale selective laser melting forming device comprises a rack (1), a forming workbench (2) arranged on the rack, a forming bin (3) sleeved on the forming workbench and a galvanometer scanning device (7) arranged outside the forming bin and moving reciprocally along the powder spreading direction to form a multi-station working state, and a smoke blowing and sucking mechanism (8) arranged in the forming bin in a mode of synchronously moving to the same station with the galvanometer scanning device. The galvanometer scanning device can move reciprocally along the powder spreading direction to form a multi-station working state. The galvanometer scanning device is entirely arranged outside the forming bin. The smoke blowing and sucking mechanism arranged in the forming bin can synchronously move with the galvanometer scanning device to the same station.