| Headlines |
| 2020-10-27 |
Snap compression format changing |
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The Ubuntu project is attempting to address performance issues surrounding launching portage Snap packages. In particular the initial load times tend to be slow and the default compression used to compress Snap packages is being changed to reduce the time it takes to load a Snap. "By default, snaps are packaged as a compressed, read-only squashfs filesystem using the XZ algorithm. This results in a high level of compression but consequently requires more processing power to uncompress and expand the filesystem for use. On the desktops, users may perceive this as a 'slowness' - the time it takes for the application to launch. This is also far more noticeable on first launch only, before the application data is cached in memory. Subsequent launches are fast and typically, there’s little to no difference compared to traditionally packaged applications. To improve startup times, we decided to test a different algorithm - LZO - which offers lesser compression, but needs less processing power to complete the action." Further details are available on the Ubuntu blog.
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