公开(公告)号：US20220334774A1

公开(公告)日：2022-10-20

申请号：US17371704

申请日：2021-07-09

Applicant: VMware, Inc.

Inventor： Emmanuel Amaro Ramirez ,  Marcos Kawazoe Aguilera ,  Pratap Subrahmanyam ,  Rajesh Venkatasubramanian

IPC: G06F3/06

Abstract: Disclosed are various approaches for decreasing the latency involved in reading pages from swap devices. These approaches can include setting a first queue in the plurality of queues as a highest priority queue and a second queue in the plurality of queues as a low priority queue. Then, an input/output (I/O) request for an address in memory can be received. The type of the I/O request can be determined, and then the I/O request can be assigned to the first queue or the second queue of the swap device based at least in part on the type of the I/O request

公开(公告)号：US20240028228A1

公开(公告)日：2024-01-25

申请号：US17868621

申请日：2022-07-19

Applicant: VMware, Inc.

Inventor： Siddhartha Visveswara Jayanti ,  Marcos Kawazoe Aguilera ,  Naama Ben David

IPC: G06F3/06

CPC classification number: G06F3/064 ,  G06F3/0604 ,  G06F3/0673

Abstract: In one set of embodiments, a computer system can receive an input array including n elements and sort the input array to generate a sorted array including the n elements in ascending or descending element order. The computer system can further convert the sorted array into a tree-ordered array including the n elements in a tree order, where the tree order corresponds to a descending order of nodes in a binary tree created from the n elements. The computer system can then place the first m

公开(公告)号：US20220405121A1

公开(公告)日：2022-12-22

申请号：US17351488

申请日：2021-06-18

Applicant: VMware, Inc.

Inventor： Yizhou Shan ,  Marcos Kawazoe Aguilera ,  Pratap Subrahmanyam ,  Rajesh Venkatasubramanian

IPC: G06F9/48 ,  G06F9/54 ,  G06F9/46

Abstract: Disclosed are various embodiments for decreasing the amount of time spent processing interrupts by switching contexts in parallel with processing an interrupt. An interrupt request can be received during execution of a process in a less privileged user mode. Then, the current state of the process can be saved. Next, a switch from the less privileged mode to a more privileged mode can be made. The interrupt request is then processed while in the more privileged mode. Subsequently or in parallel, and possibly prior to completion of the processing the interrupt request, another switch from the more privileged mode to the less privileged mode can be made.

公开(公告)号：US11726811B2

公开(公告)日：2023-08-15

申请号：US17351488

申请日：2021-06-18

Applicant: VMware, Inc.

Inventor： Yizhou Shan ,  Marcos Kawazoe Aguilera ,  Pratap Subrahmanyam ,  Rajesh Venkatasubramanian

IPC: G06F9/46 ,  G06F9/48 ,  G06F9/54

CPC classification number: G06F9/4812 ,  G06F9/461 ,  G06F9/545

Abstract: Disclosed are various embodiments for decreasing the amount of time spent processing interrupts by switching contexts in parallel with processing an interrupt. An interrupt request can be received during execution of a process in a less privileged user mode. Then, the current state of the process can be saved. Next, a switch from the less privileged mode to a more privileged mode can be made. The interrupt request is then processed while in the more privileged mode. Subsequently or in parallel, and possibly prior to completion of the processing the interrupt request, another switch from the more privileged mode to the less privileged mode can be made.

公开(公告)号：US11650747B2

公开(公告)日：2023-05-16

申请号：US17344514

申请日：2021-06-10

Applicant: VMware, Inc.

Inventor： Emmanuel Amaro Ramirez ,  Marcos Kawazoe Aguilera ,  Pratap Subrahmanyam ,  Rajesh Venkatasubramanian

IPC: G06F3/06

CPC classification number: G06F3/064 ,  G06F3/0604 ,  G06F3/0679

Abstract: Disclosed are various embodiments for high throughput reclamation of pages in memory. A first plurality of pages in a memory of the computing device are identified to reclaim. In addition, a second plurality of pages in the memory of the computing device are identified to reclaim. The first plurality of pages are prepared for storage on a swap device of the computing device. Then, a write request is submitted to a swap device to store the first plurality of pages. After submission of the write request, the second plurality of pages are prepared for storage on the swap device while the swap device completes the write request.

公开(公告)号：US20230033029A1

公开(公告)日：2023-02-02

申请号：US17382839

申请日：2021-07-22

Applicant: VMware, Inc.

Inventor： Marcos Kawazoe Aguilera ,  Renu Raman ,  Pratap Subrahmanyam ,  Praveen Vegulla ,  Rajesh Venkatasubramanian

IPC: G06F12/0811 ,  G06F12/0882 ,  G06F12/0871 ,  G06F12/02

Abstract: Disclosed are various embodiments for optimized memory tiering. A first page can be allocated in a first memory for a process, the first memory being associated with a first memory tier. Accesses of the first page by the process during execution of the process can be monitored. Then, accesses of the first page by the process during execution of the process can be compared to an allocation policy to make a first determination to move the contents of the first page from the first memory to a second memory associated with a second memory tier. Next, the contents of the first page can be copied from the first memory to a second page in the second memory in response to the first determination.

公开(公告)号：US20220398014A1

公开(公告)日：2022-12-15

申请号：US17344514

申请日：2021-06-10

Applicant: VMware, Inc.

Inventor： Emmanuel Amaro Ramirez ,  Marcos Kawazoe Aguilera ,  Pratap Subrahmanyam ,  Rajesh Venkatasubramanian

IPC: G06F3/06

Abstract: Disclosed are various embodiments for high throughput reclamation of pages in memory. A first plurality of pages in a memory of the computing device are identified to reclaim. In addition, a second plurality of pages in the memory of the computing device are identified to reclaim. The first plurality of pages are prepared for storage on a swap device of the computing device. Then, a write request is submitted to a swap device to store the first plurality of pages. After submission of the write request, the second plurality of pages are prepared for storage on the swap device while the swap device completes the write request.

公开(公告)号：US12175290B2

公开(公告)日：2024-12-24

申请号：US17382848

申请日：2021-07-22

Applicant: VMware, Inc.

Inventor： Marcos Kawazoe Aguilera ,  Renu Raman ,  Pratap Subrahmanyam ,  Praveen Vegulla ,  Rajesh Venkatasubramanian

IPC: G06F9/50 ,  G06F9/48 ,  G06F12/08

Abstract: Disclosed are various embodiments for optimized memory tiering. An ideal tier size for a first memory and an ideal tier size for a second memory can be determined for a process. Then, a host computing device can be identified that can accommodate the ideal tier size for the first memory and the second memory. Subsequently, the process can be assigned to the host computing device.

公开(公告)号：US20230031304A1

公开(公告)日：2023-02-02

申请号：US17382848

申请日：2021-07-22

Applicant: VMware, Inc.

Inventor： Marcos Kawazoe Aguilera ,  Renu Raman ,  Pratap Subrahmanyam ,  Praveen Vegulla ,  Rajesh Venkatasubramanian

IPC: G06F9/50 ,  G06F12/08 ,  G06F9/48

Abstract: Disclosed are various embodiments for optimized memory tiering. An ideal tier size for a first memory and an ideal tier size for a second memory can be determined for a process. Then, a host computing device can be identified that can accommodate the ideal tier size for the first memory and the second memory. Subsequently, the process can be assigned to the host computing device.