AXFS

<p>AXFS (Advanced XIP Filesystem) is a <a href="/facts/Data_compression/gMFuY4FT">compressed</a> <a href="/facts/File_system_permissions/DHq5SwI4">read-only</a> <a href="/facts/File_system/FdPm90uc">file system</a> for <a href="/facts/Linux_(kernel)/dlkduHuA">Linux</a>, initially developed at <a href="/facts/Intel/SMF0gJJX">Intel</a>, and now maintained at <a href="/facts/Numonyx/92hqLlHj">Numonyx</a>. It was designed to use <a href="/facts/Execute_in_place/mrUncFAA">execute in place</a> (XIP) alongside compression aiming to reduce <a href="/facts/Boot/k3vtmnUW">boot</a> and program load times, while retaining a small <a href="/facts/Memory_footprint/wnS6TgpY">memory footprint</a> for <a href="/facts/Embedded_devices/a4muX1wU">embedded devices</a>. This is achieved by mixing compressed and uncompressed <a href="/facts/Page_(computer_memory)/CNGruG1H">pages</a> in the same executable file. AXFS is <a href="/facts/Free_software/IaoVtJXn">free software</a> licensed under the <a href="/facts/GNU_General_Public_License/S75KhLSX">GPL</a>.
</p><p><a href="/facts/Cramfs/j0r9BsBp">Cramfs</a> is another read-only compressed file system that supports XIP (with patches); however, it uses a strategy of decompressing entire files, whereas AXFS supports XIP with page granularity.
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AXFS open-in-new

AXFS