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@y0ngb1n
y0ngb1n / docker-registry-mirrors.md
Last active July 19, 2025 14:11
国内的 Docker Hub 镜像加速器,由国内教育机构与各大云服务商提供的镜像加速服务 | Dockerized 实践 https://github.com/y0ngb1n/dockerized
@shingchi
shingchi / Unicode中文和特殊字符的编码范围
Created January 6, 2015 06:39
Unicode中文和特殊字符的编码范围
根据Unicode5.0整理如下:
1)标准CJK文字
http://www.unicode.org/Public/UNIDATA/Unihan.html
2)全角ASCII、全角中英文标点、半宽片假名、半宽平假名、半宽韩文字母:FF00-FFEF
http://www.unicode.org/charts/PDF/UFF00.pdf
3)CJK部首补充:2E80-2EFF
http://www.unicode.org/charts/PDF/U2E80.pdf
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阿昌族 a1'chang1'zu2 50849
阿斗 a1'dou3 42632
阿飞 a1'fei1 48603
阿富汗 a1'fu4'han4 3461
阿訇 a1'hong1 34432
阿拉伯数字 a1'la1'bo2'shu4'zi4 35937
阿拉伯语 a1'la1'bo2'yu3 30476
阿妈 a1'ma1 16220
@jboner
jboner / latency.txt
Last active July 17, 2025 12:17
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD