Credit---By Jeff Dean: http://research.google.com/people/jeff/Originally by Peter Norvig: http://norvig.com/21-days.html#answersContributions---'Humanized'comparison: https://gist.github.com/hellerbarde/2843375Visual comparison chart: http://i.imgur.com/k0t1e.png 更为形象化: 更为可读的对...
每个程序员都应该知道延迟数 Latency Numbers Every Programmer Should Know https://people.eecs.berkeley.edu/~rcs/research/interactive_latency.html
Mutex lock/unlock 25 ns Main memory reference 100 ns 20x L2 cache, 200x L1 cache Compress 1K bytes with Zippy 10,000 ns 10 us Send 1 KB bytes over 1 Gbps network 10,000 ns 10 us Read 4 KB randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD Read 1 MB sequentially from memory ...
Latency Numbers Every Programmer Should Know https://people.eecs.berkeley.edu/~rcs/research/interactive_latency.html
每个编程者都应该知道的延迟:(~2012年的性能) 代码语言:javascript 复制 Latency ComparisonNumbers(~2012)---L1cache reference0.5ns Branch mispredict5nsL2cache reference7ns 14xL1cache Mutex lock/unlock25ns Main memory reference100ns 20xL2cache,200xL1cache...
【大家都该了解的延时(Latency Numbers)】《Latency numbers every programmer should know Raw》by P Stark http://t.cn/8khqAEj
释盎科温 https://gist.github.com/hellerbarde/2843375gist.github.com/hellerbarde/2843375 发布于 2020-11-20 15:10 GitHub GitHub Pages HTTPS 写下你的评论... 打开知乎App 在「我的页」右上角打开扫一扫 其他扫码方式:微信 下载知乎App 开通机构号 ...
Latency Numbers Every Programmer Should Know 对于冯·诺伊曼体系结构的计算机,CPU 要数据才能正常工作。如果没有可处理的数据,那么CPU的运算速度再快也没有用,它只能等待。 15010 From High Ceph Latency to Kernel Patch with eBPFBCC There are a lot of tools for debugging kernel and userspace programs in...
“complexity”. Of course, we all know that complexity is bad. If you’ve been to a non-academic non-enterprise tech conference in the past decade, there’s a good chance that there was at least one talk on how complexity is the root of all evil and we should aspire to reduce ...
should generate an event that will implicitly trigger execution of a "request" or "release" operation in LM 60. The programmer also specifies tasks to be performed by LM 60 when it is presented with the event. To support this, an extended version of the C programming language was developed...