Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base


[$] Buffered I/O without page-cache thrashing

Linux offers two modes for file I/O: buffered and direct. Buffered I/O passes through the kernel’s page cache; it is relatively easy to use and can yield significant performance benefits for data that is accessed multiple times. Direct I/O, in… Continue Reading — [$] Buffered...


The total cost of software-defined storage

In the current economic climate, the cost of everything is often closely examined to be sure we’re not paying too much. However, many focus on just the cost of acquisition – the capital expenditure – as opposed to looking at the bigger picture – the total...


Defense Department To Congress: ‘No, Wait, Encryption Is Actually Good; Don’t Break It’>

As Senate Judiciary Committee Chair Lindsey Graham has continued his latest quest to undermine encryption with a hearing whose sole purpose seemed to be to misleadingly argue that encryption represents a “risk to public safety.” The Defense Department has weighed in to say that’s ridiculous. As you may...


レッドハット、Red Hat OpenShift 新パートナープログラムを発表

業界で最も包括的なエンタープライズKubernetesプラットフォームであるRed Hat OpenShift Container Platformのパートナー企業向けプログラム、「Red Hat OpenShift Managed Practice Program」を発表しました。 Continue Reading — レッドハット、Red Hat OpenShift 新パートナープログラムを発表


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