公开(公告)号：US20230409360A1

公开(公告)日：2023-12-21

申请号：US17804229

申请日：2022-05-26

Applicant: Red Hat, Inc.

Inventor： Ashutosh Mehra ,  Daniel Heidinga

IPC: G06F9/455 ,  G06F11/14 ,  G06F11/34

CPC classification number: G06F9/45558 ,  G06F11/1471 ,  G06F11/1484 ,  G06F11/3409 ,  G06F2009/4557 ,  G06F9/45508 ,  G06F2201/815 ,  G06F2201/84 ,  G06F2009/45591 ,  G06F9/4552

Abstract: Systems and methods are described for improving portability of virtual machine checkpoints without affecting system performance. In an example, a method includes determining, by a source computing system having a processor, via a virtual machine, and based on a runtime of an application on the virtual machine, one or more units of the application to compile as one or more non-portable units of the application; designating, as a non-entrant compiled code, the one or more non-portable units of the application, wherein the designation prevents execution of the one or more non-portable units; decompiling, by the source computing system, one or more stack frames associated with the one or more non-portable units of the application; sending, by the source computing system to a destination computing system, a checkpoint for the application; restoring, by the destination computing system via the virtual machine, from the checkpoint for the application, the runtime of the application.

公开(公告)号：US11899546B2

公开(公告)日：2024-02-13

申请号：US17804230

申请日：2022-05-26

Applicant: Red Hat, Inc.

Inventor： Ashutosh Mehra ,  Daniel Heidinga

IPC: G06F11/10 ,  G06F11/14

CPC classification number: G06F11/1469 ,  G06F2201/84

Abstract: Systems and methods are described for improving portability of checkpoints of an application using central processing unit (CPU)-specific features. In an example, a system includes a source computing system and a destination computing system. The source computing system may be configured to: cause a first execution of an application that includes a function associated with a plurality of implementations; receive a request to resolve an implementation decision for the function; select, based on a set of source CPU-specific features, a source-specific implementation for the first execution of the function; patch, by rendering a resolved callsite table, a call site associated with the function with an address of the source-specific implementation; and send, to a destination computing system, a checkpoint of the application that includes the resolved callsite table. The destination computing system is configured to restore the application by changing the implementation decision based on a set of destination CPU-specific features.

公开(公告)号：US20230385162A1

公开(公告)日：2023-11-30

申请号：US17804230

申请日：2022-05-26

Applicant: Red Hat, Inc.

Inventor： Ashutosh Mehra ,  Daniel Heidinga

IPC: G06F11/14

CPC classification number: G06F11/1469 ,  G06F2201/84

Abstract: Systems and methods are described for improving portability of checkpoints of an application using central processing unit (CPU)-specific features. In an example, a system includes a source computing system and a destination computing system. The source computing system may be configured to: cause a first execution of an application that includes a function associated with a plurality of implementations; receive a request to resolve an implementation decision for the function; select, based on a set of source CPU-specific features, a source-specific implementation for the first execution of the function; patch, by rendering a resolved callsite table, a call site associated with the function with an address of the source-specific implementation; and send, to a destination computing system, a checkpoint of the application that includes the resolved callsite table. The destination computing system is configured to restore the application by changing the implementation decision based on a set of destination CPU-specific features.