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A great new metric has been introduced in “/proc/meminfo” in the Linux 3.14 kernel — MemAvailable: An estimate of how much memory is available for starting new applications, without swapping. Calculated from MemFree, SReclaimable, the size of the file LRU lists, and the low watermarks in each zone. The estimate takes into account that the system needs some page cache to function well, and that not
💡 Please review the newer tests. Ever wondered how to save some CPU cycles on a very busy or slow x86 system when it comes to SSH/SCP transfers? Here is how we performed the benchmarks, in order to answer the above question: 41 MB test file with random data, which cannot be compressed – GZip makes it only 1% smaller. A slow enough system – Bifferboard. Bifferboard CPU power is similar to a Pentiu
This article is about measuring network throughput and performance using a Linux box, in a very approximate way. There are many network performance benchmarks and stress-tests which measure the maximum bandwidth transfer rate of a device – that is how many bytes-per-second or bits-per-second a device can handle. Good examples for such benchmark tests are NetPerf, Iperf, or even multiple Wget downl
…bundled as ISO images, so that you can easily mount and use them in a KVM guest. UPDATE: It seems that Fedora started to provide the latest drivers bundled as an ISO. Check the official Windows VirtIO Drivers page for links. Download locations follow: Both Virtio network and storage drivers for Windows (4.0M) Virtio network drivers for Windows (2.8M) Virtio storage drivers for Windows (1.6M) Thes
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