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The ReadyBoost cache is created on the root directory of the drive. If the system drive (the primary drive, with Windows system files on it) is a solid-state drive (SSD), ReadyBoost is disabled, since reading from that drive would be at least as fast as reading from the ReadyBoost drive. [7]
ReadyBoost (when enabled) uses external memory like a USB flash drive to extend the system cache beyond the amount of RAM installed in the computer. ReadyBoost also has a component called ReadyBoot that replaces the Prefetcher for the boot process if the system has 700 MB or more of RAM.
When such a device is plugged in, the Windows Autoplay dialog offers an additional option to use it to speed up the system; an additional "ReadyBoost" tab is added to the drive's properties dialog where the amount of space to be used can be configured. Windows ReadyBoost is also available for Windows 7 and Windows 10.
Suggesting initramfs was an alternative to ReadyBoost is incorrect: they are entirely different things. Initramfs is a system which is only of relevance during the booting of the machine and allows you to have a smaller runtime kernel during operation (improved boot times as a result of a sequential read are consequential rather than by design).
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ReadyBoost on 32-bit editions now supports up to 256 gigabytes of extra allocation. Windows 7 also supports images in RAW image format through the addition of Windows Imaging Component -enabled image decoders, which enables raw image thumbnails, previewing and metadata display in Windows Explorer, plus full-size viewing and slideshows in ...
ReadyBoost, makes PCs running Windows Vista more responsive by using flash memory on a USB drive (USB 2.0 only), SD card, Compact Flash, or other form of flash memory, in order to boost system performance.
Random boosting is a strategy used by the scheduler in Microsoft Windows to avoid deadlock due to priority inversion.Ready threads holding locks are randomly boosted in priority and allowed to run long enough to exit the critical section.