Monthly archive for 2021/8

Cache Modelling TCG Plugin

19 Aug 2021 — by Mahmoud Mandour

Caches are a key way that enables modern CPUs to keep running at full speed by avoiding the need to fetch data and instructions from the comparatively slow system memory. As a result understanding cache behaviour is a key part of performance optimisation.

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Presenting guest images as raw image files with FUSE

22 Aug 2021 (Updated 06 Sep 2021) — by Hanna Reitz

Sometimes, there is a VM disk image whose contents you want to manipulate without booting the VM. One way of doing this is to use libguestfs, which can boot a minimal Linux VM to provide the host with secure access to the disk’s contents. For example, guestmount allows you to mount a guest filesystem on the host, without requiring root rights.

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