Fujitsu Corporation

Keisuke Fukui

Takahiro Kurosawa

Hiroyuki Yamashima

Masahiko Narita

Takashi Fujiwara

Takanori Tateno

Makiko Shimamura

Mitsuhiro Kishimoto

Naoshi Ogawa

A disclosed method includes: receiving a request to allocate one or plural virtual machines for a system that includes the one or plural virtual machines to one or plural physical machine; reading out first data concerning an evaluation indicator for virtual machine allocation, wherein the first data is registered in association with the system or a requesting source of the request; first calculating, for each virtual machine of the one or plural virtual machines, a first cost in case where the virtual machine is allocated to any one of usable physical machines, based on the read first data to identify, for each virtual machine of the one or plural virtual machines, a physical machine for which the calculated first cost is the least; and generating allocation design data including second data concerning the physical machine identified for each virtual machine of the one or plural virtual machines.

Method and apparatus for determining allocation design of virtual machines

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 multiprocess input system includes a first process execution part for processing input data, a second process execution part for processing the input data, and a third process execution part for distributing the input data to the first and second process execution part. The third process execution part is provided with a data storage request receiving part for receiving from the first process execution part storage start conditions for starting storage of the input data and identification information related to the second process execution part and for storing the storage start conditions and the identification information related to the second process execution part, an input data storage part for starting storage of the input data when the storage start conditions stored in the data storage request receiving part are satisfied and for notifying the first process execution part of the start of the data storage, an identification information collating part for collating the identification information stored in the data storage request receiving part and identification information received from the second process execution part, and a stored data transmitting part for transmitting the input data stored in the data storage request receiving part to the second process execution part when the two identification information collated in the identification information collating part match.

Multiprocess input system with suppressed amount of communication

Growing community of inventors

Yokohama, Japan

Keisuke Fukui