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"Рост числа процессорных ядер приведет к необходимости смены ..." Отправлено Алексей, 03-Окт-10 04:08
Всезнайка наверное не читал pdf по ссылке в новости? А ведь стоило бы... Чтобы не утруждать ваши, без преувеличения, "гениальные" мозги, процитирую здесь только conclusion: This paper analyzes the scaling behavior of a traditional operating system (Linux 2.6.35-rc5) on a 48-core computer with a set of applications that are designed for parallel execution and use kernel services. We find that we can remove most kernel bottlenecks that the applications stress by modifying the applications or kernel slightly. Except for sloppy counters, most of our changes are applications of standard parallel programming techniques. Although our study has a number of limitations (e.g., real application deployments may be bottlenecked by I/O), the results suggest that traditional kernel designs may be compatible with achieving scalability on multicore computers. The MOSBENCH applications are publicly available at http://pdos.csail.mit.edu/mosbench/, so that future work can investigate this hypothesis further.

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Сообщение*:	> Всезнайка наверное не читал pdf по ссылке в новости? А ведь стоило > бы... > Чтобы не утруждать ваши, без преувеличения, "гениальные" мозги, процитирую здесь только > conclusion: > This paper analyzes the scaling behavior of a traditional operating system (Linux > 2.6.35-rc5) on a 48-core computer with a set of applications that > are designed for parallel execution and use kernel services. We find > that we can remove most kernel bottlenecks that the applications stress > by modifying the applications or kernel slightly. Except for sloppy counters, > most of our changes are applications of standard parallel programming techniques. > Although our study has a number of limitations (e.g., real application > deployments may be bottlenecked by I/O), the results suggest that traditional > kernel designs may be compatible with achieving scalability on multicore computers. > The MOSBENCH applications are publicly available at http://pdos.csail.mit.edu/mosbench/, > so that future work can investigate this hypothesis further.
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