公开(公告)号：US20230080935A1

公开(公告)日：2023-03-16

申请号：US18056445

申请日：2022-11-17

Applicant: VMware, Inc.

Inventor： Tanay GANGULY ,  Zubraj SINGHA ,  Goresh MUSALAY ,  Kashish BHATIA

IPC: G06F12/02 ,  G06F12/10

Abstract: Virtual memory space may be saved in a clone environment by leveraging the similarity of the data signatures in swap files when a chain of virtual machines (VMs) includes clones spawned from a common parent and executing common applications. Deduplication is performed across the chain, rather than merely within each VM. Examples include generating a common deduplication identifier (ID) for the chain; generating a logical addressing table linked to the deduplication ID, for each of the VMs in the chain; and generating a hash table for the chain. Examples further include, based at least on a swap out request, generating a hash value for a block of memory to be written to a storage medium; and based at least on finding the hash value within the hash table, updating the logical addressing table to indicate a location of a prior-existing duplicate of the block on the storage medium.

公开(公告)号：US20240086103A1

公开(公告)日：2024-03-14

申请号：US17943142

申请日：2022-09-12

Applicant: VMware, Inc.

Inventor： Kashish BHATIA ,  Randhir SINGH ,  Kamal Jeet CHARAN ,  Akshay JINDAL ,  Prasanna AITHAL

IPC: G06F3/06

CPC classification number: G06F3/0656 ,  G06F3/0613 ,  G06F3/0673

Abstract: Example methods and systems to process input/output (I/O) requests in a distributed storage system in a virtualized computing environment are disclosed. One example method includes executing a first thread to destage one or more data writes, wherein the one or more data writes correspond to a first bucket; executing a second thread to destage the one or more data deletes, wherein the one or more data deletes correspond to a second bucket; in response to executing the first thread, buffering write I/Os associated with the one or more data writes in a logical queue; in response to executing the second thread, buffering delete I/Os associated with the one or more data deletes in the logical queue; and adjusting a number of slots in the logical queue dedicated to buffer the delete I/Os based on a relationship between the first bucket and the second bucket.