Method and device for improving large-range random read performance of DRAM-less solid state disk

The invention relates to a DRAM-less solid state disk large-range random read performance improvement method and device, computer equipment and a storage medium, and the method comprises the steps: in a large-range random read scene, checking whether a temporary mapping cache space needed by a curre...

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Bibliographic Details
Main Authors ZHAO LIANGENG, XIAO SHIPING, LI JIAN
Format Patent
LanguageChinese
English
Published 22.08.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention relates to a DRAM-less solid state disk large-range random read performance improvement method and device, computer equipment and a storage medium, and the method comprises the steps: in a large-range random read scene, checking whether a temporary mapping cache space needed by a current read command is enough or not; if yes, allocating a temporary mapping cache for the read command and submitting a request from HMB loading mapping to the temporary mapping cache, and if not, carrying out asynchronous waiting; after the loading request is executed, obtaining complete mapping required by the read command according to the temporary mapping cache and the local mapping cache; a read request is submitted to the NAND, and then the temporary mapping cache allocated for the read command is released. According to the invention, frequent exchange of the mapping table cache in the large-range random reading scene between the HMB and the SSD local RAM can be avoided, so that the large-range random reading pe
Bibliography:Application Number: CN202310579696