OpenWRT Barrier Breaker install instructions: Zram uses a little CPU power but in our case we have no problem with CPU, we have shortage of RAM instead, so it's a perfect solution! In our case it stops the router from beeing reset by watchdog/low memory and "virtually" increase the total free RAM available Google uses zram in Android since its version 4.4 Also, using zram results in a significantly reduced I/O for Linux systems that require swapping. The reduction in swap usage as a result of using zram effectively reduces the amount of wear placed on such flash-based storage, resulting in prolonging its usable life. Zram offers advantages for low-end hardware devices such as embedded devices, such devices usually use flash-based storage, which has limited lifespan due to write amplification, and also use it to provide swap space. Since using zram is an alternative way to provide swapping on RAM, zram allows Linux to make a better use of RAM when swapping/paging is required, especially on older computers with less RAM installed. zram increases performance by avoiding paging to disk and using a compressed block device in RAM instead, inside which paging takes place until it is necessary to use the swap space on a hard disk drive. Zram (also called zRAM and, initially, compcache) is a Linux kernel feature that provides a form of virtual memory compression. Improve use of memory and increase stability of the Internet Radio by using Zram.
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