Fujitsu Corporation

Mitsuhiro Kishimoto

Yuji Imai

Takahiro Kurosawa

Tsuneo Katsuyama

Keisuke Fukui

Naoshi Ogawa

When a user process issues an input/output request in a process performed in response to the input/output request generated by the user process, the input/output request is queued in the input/output request list which is a queue in a list format on the user space side. On the kernel side, when a input/output request in the input/output request list is processed, the status is changed into 'processed', and a list element whose status indicates 'processed' is removed from the request list on the user space side. On the kernel side, a thread for performing a process in response to an input/output request is divided into a plurality of threads, and the CPU is released to another thread before completion of the process.

Information processing apparatus, data inputting/outputting method, and program storage medium therefor

A control method and apparatus for distributing packets to nodes in a cluster, while realizing a single system image at the network address level and such as to be able to simply and dynamically change the distribution destination, conditions of distribution, and the like. A pattern matching unit in a relay device receives packets coming from a packet receiving device. The packets have an address which represents a cluster. Using a distribution control table, pattern matching is performed based on the transmission origin address, transmission origin port, destination port and the like of this packet. A hash calculation unit, from the matching result, performs a hash calculation obtaining the argument of a hash function. A destination node extraction unit sets the destination node of the packet based on the hash result, using the distribution control table.

Growing community of inventors

Kanagawa, Japan

Mitsuhiro Kishimoto