Performance Archives - The Passthrough POST /tag/performance/ Your baremetal source for virtual news Wed, 01 Aug 2018 21:50:42 +0000 en-US hourly 1 https://wordpress.org/?v=6.2.2 140179014 CONFIG_HZ: How does it affect KVM? /config_hz-how-does-it-affect-kvm/ /config_hz-how-does-it-affect-kvm/#disqus_thread Wed, 01 Aug 2018 00:18:24 +0000 /?p=1858 Since the release of version 2.6.13 in August 2005, the Linux kernel has support for adjusting the frequency of the timer interrupt via the CONFIG_HZ compile-time option. This setting can have a considerable impact on overall system latency and throughput in certain scenarios. In this article, its impact on KVM will be explored. See Also: [...]

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]]> /config_hz-how-does-it-affect-kvm/feed/ 0 1858 Meltdown Patch Performance — Benchmarks and Review /meltdown-patch-performance-benchmarks-review/ /meltdown-patch-performance-benchmarks-review/#disqus_thread Mon, 22 Jan 2018 17:08:38 +0000 /?p=1371 The computing community is full of concern for the Meltdown vulnerability. Page-Table Isolation is the name of the patch. Many workloads can see a performance hit. How is GPU Passthrough affected? These benchmarks will attempt to show this. An Overview Meltdown is an architectural vulnerability in Intel and certain ARM CPUs. It allows an attacker [...]

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