SYSTEM AND METHOD FOR ZERO BUFFER COPYING IN A MIDDLEWARE ENVIRONMENT

• US 20120066459A1
• Filed: 05/17/2011
• Published: 03/15/2012
• Est. Priority Date: 09/15/2010
• Status: Active Grant

• Current Assignee: Oracle International Corporation (Oracle Corporation)
• Original Assignee: Oracle International Corporation (Oracle Corporation)
• Inventors: Bihani, Ballav, Liu, Steven, Larsen, Staffan
• Granted Patent: US 8,856,460 B2
• Time in Patent Office: Days
• US Class Current: 711/154
• CPC Class Codes: G06F 15/17318 Parallel communications techniques, e.g. gather, scatter, reduce, roadcast, multicast, all to all
• CPC Class Codes: G06F 16/20 of structured data, e.g. relational data
• CPC Class Codes: G06F 16/2358 Change logging, detection, and notification replication G06F16/27
• CPC Class Codes: G06F 16/252 between a Database Management System and a front-end application
• CPC Class Codes: G06F 16/278 Data partitioning, e.g. horizontal or vertical partitioning
• CPC Class Codes: G06F 9/45504 Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
• CPC Class Codes: H04L 41/042 comprising distributed management centres cooperatively managing the network
• CPC Class Codes: H04L 41/0686 Additional information in the notification, e.g. enhancement of specific meta-data
• CPC Class Codes: H04L 49/358 Infiniband Switches
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1004 Server selection for load balancing
• CPC Class Codes: H04L 67/1027 Persistence of sessions during load balancing
• CPC Class Codes: H04L 67/1034 Reaction to server failures by a load balancer
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/142 Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
• CPC Class Codes: H04L 67/146 Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding
• CPC Class Codes: H04L 69/14 Multichannel or multilink protocols
• CPC Class Codes: Y10T 409/308904 : Multiple row dividing head
• CPC Class Codes: Y10T 409/309072 : including cutter limited to rotary motion
• CPC Class Codes: Y10T 409/309128 : with means to adjust work support vertically
• CPC Class Codes: Y10T 409/309352 : Cutter spindle or spindle support
• CPC Class Codes: Y10T 409/309408 : with cutter holder

Abstract

Systems and methods are provided for zero buffer copying. In accordance with an embodiment, such a system can include one or more high performance computing systems, each including one or more processors and a high performance memory. The system can further include a user space, which includes a Java virtual machine (JVM) and one or more application server instances. Additionally, the system can include a plurality of byte buffers accesible to the JVM and the one or more application server instances. When a request is received by a first application server instance data associated with the request is stored in a heap space associated with the JVM, and the JVM pins the portion of the heap space where the data is stored. The data is pushed to a first byte buffer where it is accessed by the first application server instance. A response is generated by the first application server using the data, and the response is sent by the first application server.

Claims

1. A system for zero buffer copying, comprising:

one or more high performance computing systems, each including one or more processors and a high performance memory;

a user space, which includes a Java virtual machine (JVM) and one or more application server instances;

a plurality of byte buffers accesible to the JVM and the one or more application server instances; and

wherein when a request is received by a first application server instance

data associated with the request is stored in a heap space associated with the JVM,

the JVM pins the portion of the heap space where the data is stored,

the data is pushed to a first byte buffer where it is accessed by the first application server instance,

a response is generated by the first application server using the data, and

the response is sent by the first application server.

2. The system of claim 1 further comprising:

a kernel space which includes support for sockets direct protocol (SDP); and

one or more byte buffer-aware streams accessible to the kernel space and the user space.

3. The system of claim 1 wherein each byte buffer is a Java New I/O (NIO) byte buffer.

4. The system of claim 1 wherein the request is an HTTP request.

5. The system of claim 1 wherein the first byte buffer includes a reference pointing to where the data is stored in the heap space.

6. A method for zero buffer copying, comprising:

providing one or more high performance computing systems, each including one or more processors and a high performance memory;

providing a user space, which includes a Java virtual machine (JVM) and one or more application server instances;

providing a plurality of byte buffers accesible to the JVM and the one or more application server instances; and

receiving a request by a first application server instance;

storing data associated with the request in a heap space associated with the JVM;

pinning, by the JVM, a portion of the heap space where the data is stored;

pushing the data to a first byte buffer where it is accessed by the first application server instance;

generating a response, by the first application server, using the data; and

sending the response by the first application server.

7. The method of claim 6 further comprising:

providing a kernel space which includes support for sockets direct protocol (SDP); and

providing one or more byte buffer-aware streams accessible to the kernel space and the user space.

8. The method of claim 6 wherein each byte buffer is a Java New I/O (NIO) byte buffer.

9. The method of claim 6 wherein the request is an HTTP request.

10. The method of claim 6 wherein the first byte buffer includes a reference pointing to where the data is stored in the heap space.

11. A non-transitory computer readable storage medium including instructions stored thereon which, when executed by a computer, cause the computer to perform the steps of:

providing one or more high performance computing systems, each including one or more processors and a high performance memory;

providing a user space, which includes a Java virtual machine (JVM) and one or more application server instances;

providing a plurality of byte buffers accesible to the JVM and the one or more application server instances; and

receiving a request by a first application server instance;

storing data associated with the request in a heap space associated with the JVM;

pinning, by the JVM, a portion of the heap space where the data is stored;

pushing the data to a first byte buffer where it is accessed by the first application server instance;

generating a response, by the first application server, using the data; and

sending the response by the first application server.

12. The non-transitory computer readable storage medium of claim 11 further comprising:

providing a kernel space which includes support for sockets direct protocol (SDP); and

providing one or more byte buffer-aware streams accessible to the kernel space and the user space.

13. The non-transitory computer readable storage medium of claim 11 wherein each byte buffer is a Java New I/O (NIO) byte buffer.

14. The non-transitory computer readable storage medium of claim 11 wherein the request is an HTTP request.

15. The non-transitory computer readable storage medium of claim 11 wherein the first byte buffer includes a reference pointing to where the data is stored in the heap space.