puz_zle puzzle9

Docker Hub 镜像加速器

国内从 Docker Hub 拉取镜像有时会遇到困难，此时可以配置镜像加速器。

Dockerized 实践 https://github.com/y0ngb1n/dockerized

1️⃣ Docker daemon 配置代理（推荐）

Web Cryptography API Examples

Live Table: https://diafygi.github.io/webcrypto-examples/

I couldn't find anywhere that had clear examples of WebCryptoAPI, so I wrote examples and made a live table with them. Pull requests welcome!

RSASSA-PKCS1-v1_5

generateKey | importKey |

Disk Speed Test (Read/Write): HDD, SSD Performance in Linux

From this article you’ll learn how to measure an input/output performance of a file system on such devices as HDD, SSD, USB Flash Drive etc.

I’ll show how to test the read/write speed of a disk from the Linux command line using dd command.

I’ll also show how to install and use hdparm utility for measuring read speed of a disk on Linux Mint, Ubuntu, Debian, CentOS, RHEL.

Take the average result: To get the accurate read/write speed, you should repeat the below tests several times (usually 3-5) and take the average result.

	opkg update
	opkg install losetup resize2fs
	BOOT="$(sed -n -e "/\s\/boot\s.*$/{s///p;q}" /etc/mtab)"
	DISK="${BOOT%%[0-9]*}"
	PART="$((${BOOT##*[^0-9]}+1))"
	ROOT="${DISK}${PART}"
	LOOP="$(losetup -f)"
	losetup ${LOOP} ${ROOT}
	fsck.ext4 -y ${LOOP}
	resize2fs ${LOOP}