Akira Hirai

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A 64-year-old woman with periodontal disease was admitted because of fever, right chest pain, and bloody sputum. Her chest radiograph revealed a nodular shadow in the right middle lung fields. From the results of a needle aspiration biopsy, she was diagnosed with a lung abscess due to Actinomyces odontolyticus (A. odontolyticus) and Streptococcus spp. The(More)
Performance analysis and troubleshooting of cloud applications are challenging. In particular, identifying the root causes of performance problems is quite difficult. This is because profiling tools based on processor performance counters do not yet work well for an entire virtualized environment, which is the underlying infrastructure in cloud computing.(More)
In this paper, we propose and evaluate the experimental implementation of cache coloring for task structures on the Linux kernel 2.4.x. We analyzed the behavior of the scheduler from the viewpoint of memory architecture and found that severe cache conflicts occur in a specific cache line. To solve this issue, we applied cache coloring scheme to task(More)
Akira Hirai Yasuyoshi Kaneko Tatsuo Hosoda Satoshi Yamane Kenji Oshima Saitama university Saitama University Saitama University Saitama University Saitama University Shimo-okubo255 Shimo-okubo255 Shimo-okubo255 Shimo-okubo255 Shimo-okubo255 Saitama, 338-8570 Saitama, 338-8570 Saitama, 338-8570 Saitama, 338-8570 Saitama, 338-8570 JAPAN JAPAN JAPAN JAPAN(More)
Eight sickbeds for the support of patients at home were established in Chiba Municipal Hospital in response to a request from the Chiba City Medical Association in 1997. These sickbeds were run by physicians and nurses in the hospital and nurses from Chiba City Public Health Center to promote a tight relation among the medical care, the health care and the(More)
Churg-Strauss syndrome is characterized by asthma, eosinophilia and systemic necrotizing vasculitis; cardiac involvement (ie, eosinophilic heart disease) is the major cause of morbidity and mortality, although there are no reports of an association between left ventricular dysfunction because of eosinophilic heart disease and myocardial blood flow or(More)
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