如何启用 zram 以及如何设置

zyg · 2023年05月9日 07:58

如何在 openSUSE 开启 zram，能不能和 swap 共存。

zyg · 2023年05月9日 12:12

找到两篇教程

torvalds/linux/blob/481ed297d900af0ce395f6ca8975903b76a5a59e/Documentation/admin-guide/blockdev/zram.rst#4-set-disksize

========================================
zram: Compressed RAM-based block devices
========================================

Introduction
============

The zram module creates RAM-based block devices named /dev/zram<id>
(<id> = 0, 1, ...). Pages written to these disks are compressed and stored
in memory itself. These disks allow very fast I/O and compression provides
good amounts of memory savings. Some of the use cases include /tmp storage,
use as swap disks, various caches under /var and maybe many more. :)

Statistics for individual zram devices are exported through sysfs nodes at
/sys/block/zram<id>/

Usage
=====

There are several ways to configure and manage zram device(-s):

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zzndb · 2023年05月9日 13:04

可以和单独的 swap 分区共存，可以使用 zram-generator 项目页面有大概步骤，oss 源里就有这个包