公开(公告)号：US20240235710A9

公开(公告)日：2024-07-11

申请号：US17969095

申请日：2022-10-19

Applicant: Google LLC

Inventor： Abhishek Agarwal ,  Ye Tang ,  Prashant R. Chandra ,  Simon Luigi Sabato ,  Hema Hariharan

IPC: H04J3/06

CPC classification number: H04J3/0667

Abstract: Aspects of the disclosure are directed to supporting time synchronization across a datacenter network with greater accuracy. The time synchronization includes both software based and hardware based time synchronization mechanisms to provide more precise time synchronization across various nodes in the datacenter network. The software based mechanism can provide the initial coarse time synchronization while the hardware based mechanism can provide the subsequent finer time synchronization.

公开(公告)号：US20240137140A1

公开(公告)日：2024-04-25

申请号：US17969095

申请日：2022-10-18

Applicant: Google LLC

Inventor： Abhishek Agarwal ,  Ye Tang ,  Prashant R. Chandra ,  Simon Luigi Sabato ,  Hema Hariharan

IPC: H04J3/06

CPC classification number: H04J3/0667

Abstract: Aspects of the disclosure are directed to supporting time synchronization across a datacenter network with greater accuracy. The time synchronization includes both software based and hardware based time synchronization mechanisms to provide more precise time synchronization across various nodes in the datacenter network. The software based mechanism can provide the initial coarse time synchronization while the hardware based mechanism can provide the subsequent finer time synchronization.

公开(公告)号：US12199746B2

公开(公告)日：2025-01-14

申请号：US17969095

申请日：2022-10-19

Applicant: Google LLC

Inventor： Abhishek Agarwal ,  Ye Tang ,  Prashant R. Chandra ,  Simon Luigi Sabato ,  Hema Hariharan

IPC: H04J3/06

Abstract: Aspects of the disclosure are directed to supporting time synchronization across a datacenter network with greater accuracy. The time synchronization includes both software based and hardware based time synchronization mechanisms to provide more precise time synchronization across various nodes in the datacenter network. The software based mechanism can provide the initial coarse time synchronization while the hardware based mechanism can provide the subsequent finer time synchronization.

公开(公告)号：US20190116108A1

公开(公告)日：2019-04-18

申请号：US15787658

申请日：2017-10-18

Applicant: Google LLC

Inventor： Daniel Earle Gibson ,  Simon Luigi Sabato ,  Monica C. Wong-Chan ,  Milo Martin

IPC: H04L12/26

Abstract: System utilization related to memory usage can be monitored by storing host memory usage information in the corresponding host physical memory. However, retrieving this information can be a high overhead operation because it involves engaging with the operating system of each host. Moreover, storing memory usage information in the host physical memories can pose a security risk if they also store privileged data. Network interfaces according to the present disclosure provide unobtrusive and secure support for monitoring of network and other system resources such as regions of memory within host physical memories. Implementations according to the present disclosure include a plurality of memory region counters stored on a network interface. Each memory region counter corresponds to one of the memory regions located in a physical memory of a host coupled to the network interface. Each of the counters includes a system utilization metric associated with its corresponding memory region.

公开(公告)号：US10986011B2

公开(公告)日：2021-04-20

申请号：US15787658

申请日：2017-10-18

Applicant: Google LLC

Inventor： Daniel Earle Gibson ,  Simon Luigi Sabato ,  Monica C. Wong-Chan ,  Milo Martin

IPC: H04L12/26 ,  G06F11/30 ,  G06F11/34 ,  H04L29/08 ,  G06F9/54

Abstract: System utilization related to memory usage can be monitored by storing host memory usage information in the corresponding host physical memory. However, retrieving this information can be a high overhead operation because it involves engaging with the operating system of each host. Moreover, storing memory usage information in the host physical memories can pose a security risk if they also store privileged data. Network interfaces according to the present disclosure provide unobtrusive and secure support for monitoring of network and other system resources such as regions of memory within host physical memories. Implementations according to the present disclosure include a plurality of memory region counters stored on a network interface. Each memory region counter corresponds to one of the memory regions located in a physical memory of a host coupled to the network interface. Each of the counters includes a system utilization metric associated with its corresponding memory region.