发明名称 |
System and method for achieving high performance data flow among user space processes in storage system |
摘要 |
Fault isolation capabilities made available by user space can be provided for a embedded network storage system without sacrificing efficiency. By giving user space processes direct access to specific devices (e.g., network interface cards and storage adapters), processes in a user space can initiate Input/Output requests without issuing system calls (and entering kernel mode). The multiple user spaces processes can initiate requests serviced by a user space device driver by sharing a read-only address space that maps the entire physical memory one-to-one. In addition, a user space process can initiate communication with another user space process by use of transmit and receive queues similar to transmit and receiver queues used by hardware devices. And, a mechanism of ensuring that virtual addresses that work in one address space reference the same physical page in another address space is used. |
申请公布号 |
US8667504(B2) |
申请公布日期 |
2014.03.04 |
申请号 |
US20080143592 |
申请日期 |
2008.06.20 |
申请人 |
THELEN RANDY;GOODSON GARTH;SRINIVASAN KIRAN;SUSARLA SAI;NETAPP, INC. |
发明人 |
THELEN RANDY;GOODSON GARTH;SRINIVASAN KIRAN;SUSARLA SAI |
分类号 |
G06F3/00 |
主分类号 |
G06F3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|