Inspur Suzhou Intelligent Technology Co., Ltd

Chuang Zhang

Zhixin Ren

Jie Sun

Ke Liu

Zhongxiang Sun

Min Wang

A method, system and device for analyzing an error rate of an MLC chip. The method includes selecting data blocks from the MLC chip, and performing erasing-writing operations to the data blocks; after the erasing-writing operations are completed, reading each of groups of the dual-bits corresponding to each of the first pages and the second pages of the data blocks, and determining the bit state of the each of groups of the dual-bits; counting up the first total quantity of all of the dual-bits corresponding to the target page in the target bit state representing that the data writing is erroneous, to obtain a first error rate of the target page in the target bit state; and counting up a second total quantity of all of the dual-bits corresponding to the data blocks in the target bit state.

Error rate analysis method, system and apparatus for MLC chip

Provided is a data query method, applied to a heterogeneous acceleration platform. The data query method includes: determining operators in a database management system, and accomplishing, in a parallel processor, functions corresponding to the operators (S); if an SQL query statement is received, converting, by using a CPU, the where clause in the SQL query statement into a data structure including a binary tree and a linked list (S); controlling the CPU to generate an operation code stream of the data structure according to node information (S); and performing, by using the parallel processor, a screening operation corresponding to the operation code stream on records in the database management system to obtain a query result conforming to the where clause (S).

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Jiangsu, China

Chuang Zhang