公开(公告)号：US11080231B2

公开(公告)日：2021-08-03

申请号：US16236928

申请日：2018-12-31

Applicant: Micron Technology, Inc.

Inventor： John M. Groves

IPC: G06F17/00 ,  G06F16/11 ,  G06F16/188

Abstract: Various embodiments described herein provide for creation of a file that is backed by a requester-specified set of data storage objects. According to some embodiments, a request is received to create a new file on a file system that is backed by a specified set of data storage objects stored on a set of memory components. For example, the specified set of data storage objects can be associated with storage of one or more portions of an existing file stored on the set of memory components. In response to receiving the request to create the new file, a file data structure can be generated on the file system that represents the new file, where the file data structure comprises a mapping to the specified set of data storage objects. Subsequently, the request can be responded to with data that confirms creation of the new file on the file system.

公开(公告)号：US20200159727A1

公开(公告)日：2020-05-21

申请号：US16749523

申请日：2020-01-22

Applicant: Micron Technology, Inc.

Inventor： David Boles ,  John M. Groves ,  Steven Moyer ,  Alexander Tomlinson

IPC: G06F16/2458 ,  G06F16/901 ,  G06F16/2455

Abstract: Systems and techniques for reducing probabilistic filter query latency are described herein. A query for a probabilistic filter that is stored on a first media may be received from a caller. In response to receiving the query, cached segments of the probabilistic filter stored on a second media may be obtained. Here, the probabilistic filter provides a set membership determination that is conclusive in a determination that an element is not in a set. The query may be executed on the cached segments resulting in a partial query result. Retrieval of remaining data of the probabilistic filter from the first media to the second media may be initiated without intervention from the caller. Here, the remaining data corresponds to the query and data that is not in the cached segment. The partial query results may then be returned to the caller.

公开(公告)号：US10579633B2

公开(公告)日：2020-03-03

申请号：US15691998

申请日：2017-08-31

Applicant: Micron Technology, Inc.

Inventor： David Boles ,  John M. Groves ,  Steven Moyer ,  Alexander Tomlinson

IPC: G06F16/00 ,  G06F16/2458 ,  G06F16/901 ,  G06F16/2455

Abstract: Systems and techniques for reducing probabilistic filter query latency are described herein. A query for a probabilistic filter that is stored on a first media may be received from a caller. In response to receiving the query, cached segments of the probabilistic filter stored on a second media may be obtained. Here, the probabilistic filter provides a set membership determination that is conclusive in a determination that an element is not in a set. The query may be executed on the cached segments resulting in a partial query result. Retrieval of remaining data of the probabilistic filter from the first media to the second media may be initiated without intervention from the caller. Here, the remaining data corresponds to the query and data that is not in the cached segment. The partial query results may then be returned to the caller.

公开(公告)号：US20180225321A1

公开(公告)日：2018-08-09

申请号：US15428912

申请日：2017-02-09

Applicant: Micron Technology, Inc.

Inventor： David Boles ,  John M. Groves ,  Steven Moyer ,  Alexander Tomlinson

IPC: G06F17/30

Abstract: Systems and techniques for collecting and using merge tree garbage metrics are described herein. A kvset is created for a node in a KVS tree. Here, a set of kvset metrics for the kvset are computed as part of the node creation. The kvset is added to the node. The node is selected for a compaction operation based on a metric in the set of kvset metrics. The compaction operation is performed on the node.

公开(公告)号：US20180225316A1

公开(公告)日：2018-08-09

申请号：US15428976

申请日：2017-02-09

Applicant: Micron Technology, Inc.

Inventor： David Boles ,  John M. Groves ,  Steven Moyer ,  Alexander Tomlinson

IPC: G06F17/30

Abstract: Systems and techniques for stream selection from multi-stream storage devices. Notification of a KVS tree write request for a multi-stream storage device is received. The notification includes a KVS tree scope corresponding to data in the write request. A stream identifier (ID) is assigned to the write request based on the KVS tree scope and a stability value of the write request. The stream ID is returned to govern stream assignment to the write request, the stream assignment modifying a write operation of the multi-stream storage device.

公开(公告)号：US20250028611A1

公开(公告)日：2025-01-23

申请号：US18762217

申请日：2024-07-02

Applicant: Micron Technology, Inc.

Inventor： John M. Groves

IPC: G06F11/14

Abstract: A system can include a memory device and a processing device operatively coupled with the memory device, to perform operations of maintaining a set of data items reflective of a state of a host application and receiving a first request to make a checkpoint copy of the state of the host application. The operations can also include responsive to receiving the first request, associating a snapshot identifier with the object identifier, and receiving a second request to modify a data item of the set of data items at the first set of physical address ranges. They can also include executing the second request by recording a modification a data item exclusively at a second set of physical address ranges and making the checkpoint copy by copying the set of data items of the snapshot from the first set of physical address ranges to a second memory device.

公开(公告)号：US11861193B2

公开(公告)日：2024-01-02

申请号：US18097168

申请日：2023-01-13

Applicant: Micron Technology, Inc.

Inventor： Jacob Mulamootil Jacob ,  John M. Groves ,  Steven Moyer

IPC: G06F3/06

CPC classification number: G06F3/0635 ,  G06F3/0605 ,  G06F3/067 ,  G06F3/0613 ,  G06F3/0631 ,  G06F3/0659

Abstract: A system and method for updating a configuration of a host system so that the memory sub-system of the host system emulates performance characteristics of a target memory sub-system. An example system includes a memory sub-system; and a processor, operatively coupled with the memory sub-system, to perform operations comprising receiving a request to emulate a characteristic of a target memory sub-system, identifying a candidate configuration that generates a load on a memory sub-system of a host system to decrease a characteristics of the memory sub-system of the host system, and updating a configuration of the host system based at least on the candidate configuration, wherein the updated configuration changes the memory sub-system of the host system to emulate the characteristic of the target memory sub-system.

公开(公告)号：US20220374148A1

公开(公告)日：2022-11-24

申请号：US17882862

申请日：2022-08-08

Applicant: Micron Technology, Inc.

Inventor： David Boles ,  John M. Groves ,  Steven Moyer ,  Alexander Tomlinson

IPC: G06F3/06 ,  G06F16/13 ,  G06F12/1009

Abstract: Systems and techniques for reducing probabilistic filter query latency are described herein. A query for a probabilistic filter that is stored on a first media may be received from a caller. In response to receiving the query, cached segments of the probabilistic filter stored on a second media may be obtained. Here, the probabilistic filter provides a set membership determination that is conclusive in a determination that an element is not in a set. The query may be executed on the cached segments resulting in a partial query result. Retrieval of remaining data of the probabilistic filter from the first media to the second media may be initiated without intervention from the caller. Here, the remaining data corresponds to the query and data that is not in the cached segment. The partial query results may then be returned to the caller.

公开(公告)号：US11238098B2

公开(公告)日：2022-02-01

申请号：US17017126

申请日：2020-09-10

Applicant: Micron Technology, Inc.

Inventor： David Boles ,  John M. Groves ,  Steven Moyer ,  Alexander Tomlinson

IPC: G06F16/00 ,  G06F16/901 ,  G06F16/23 ,  G06F16/22

Abstract: A KVS tree database and operations thereon are described herein. A KVS tree database is a multilevel tree that includes a base level and subsequent levels. The base level includes a heterogeneous kvset in a node, The heterogeneous kvset including entries for multiple KVS trees, such as a first entry for a first KVS tree and a second entry for a second KVS tree, The subsequent level includes a first node including a first homogeneous kvset for the first KVS tree and a second node including a second homogeneous kvset for the second KVS tree. Here, a homogeneous kvset includes nodes from only one KVS tree. The KVS tree database also includes a first determinative mapping of entries between the base level and the subsequent level and a second determinative mapping of entries between subsequent levels.

公开(公告)号：US20200334295A1

公开(公告)日：2020-10-22

申请号：US16921371

申请日：2020-07-06

Applicant: Micron Technology, Inc.

Inventor： David Boles ,  John M. Groves ,  Steven Moyer ,  Alexander Tomlinson

IPC: G06F16/901

Abstract: Systems and techniques for collecting and using merge tree garbage metrics are described herein. A kvset is created for a node in a KVS tree. Here, a set of kvset metrics for the kvset are computed as part of the node creation. The kvset is added to the node. The node is selected for a compaction operation based on a metric in the set of kvset metrics. The compaction operation is performed on the node.