![]() ![]() Processes in Linux can use the madvise() system call to inform the kernel about their behaviour in order to get better performance. Recommended LWN article: Operations restrictions for io_uring This release adds a few API changes that add some restrictions and make possible for host application to grant access to some of its file descriptors and allow untrusted applications or guests to safely use io_uring. As usual, widespread adoption leads to new use cases, such as processes that might want share a ring with less trusted processes. Since io_uring was introduced in Linux 5.1, it has seen widespread adoption. Support io_uring restrictions to facilitate secure sharing of rings ![]() Recommended LWN article: Fast commits for ext4ġ.3. This feature needs to be enabled at mkfs time. This speeds up fsync() and metadata heavy operations. In this release, Ext4 will use a novel journaling technique, consisting in optimistically only journal the minimum required information through which a crash recovery operation can recover the metadata modified through an fsync operation. Such operation attempts to synchronize to the disk a few more metadata than expected. Many applications use fsync(2) to ensure that data is reliably placed on disk. Ext4 fast commit support, for faster metadata performance This release is a Long Term Support release, which means that maintainers will provide bugfixes for this kernel revision for a much longer period of time than for other stable kernel releases.ġ.2. Hardware Random Number Generator (hwrng).Voltage, current regulators, power capping, power supply.Universal Serial Bus (USB) and Thunderbolt.Tablets, touch screens, keyboards, mouses.Static calls for improved post-Spectre performance.AMD support for encryption of register in virtualized guests.Faster performance and memory consumption in virtio-fs.Support io_uring restrictions to facilitate secure sharing of rings.Ext4 fast commit support, for faster metadata performance. ![]()
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