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刘强东：一家公司特别针对我们时 他已经恐惧了 - 资讯 - 清泛网 - 专注C/C+...
...淘宝京东两者商业模式竞争最后的结局是什么，只是时间问题。
我们见刘强东的当天晚上，京东公布了2015财年第三季度财报。这是公司上市以来，刘强东第6次向资本市场上交成绩单。考虑到双十一刚刚过去，这份财报就显得...
Comparing two byte arrays in .NET
... info:
BenchmarkDotNet=v0.12.0, OS=Windows 10.0.18362
Intel Core i7-6850K CPU 3.60GHz (Skylake), 1 CPU, 12 logical and 6 physical cores
.NET Core SDK=3.1.100
[Host] : .NET Core 3.1.0 (CoreCLR 4.700.19.56402, CoreFX 4.700.19.56404), X64 RyuJIT
DefaultJob : .NET Core 3.1.0 (CoreCLR 4.700.19.5...
Is SHA-1 secure for password storage?
...t bigger, because storage cost is reduced. The bottleneck on N becomes the CPU power that the attacker can muster, not the size of his harddisks.
If N is large enough that the CPU-cost of hashing N passwords is ludicrous, then such an attack is not feasible, regardless of whether rainbow tables ar...
Java NIO FileChannel versus FileOutputstream performance / usefulness
...ly benchmarking the disk, and not Java. I would also suggest that if your CPU is not busy, then you are probably experiencing some other bottleneck.
Don't use a buffer if you don't need to.
Why copy to memory if your target is another disk or a NIC? With larger files, the latency incured is non-...
Convert UTC/GMT time to local time
... and found that the DateTime.Parse represented a significant percentage of CPU usage. (Incidentally, the CultureInfo constructor was not a significant contributor to CPU usage.)
So I set up a console app to parse a date/time string 10000 times in a variety of ways. Bottom line:
Parse() 10 sec
P...
Heap vs Binary Search Tree (BST)
...ata
tested on Ubuntu 19.04, GCC 8.3.0 in a Lenovo ThinkPad P51 laptop with CPU: Intel Core i7-7820HQ CPU (4 cores / 8 threads, 2.90 GHz base, 8 MB cache), RAM: 2x Samsung M471A2K43BB1-CRC (2x 16GiB, 2400 Mbps), SSD: Samsung MZVLB512HAJQ-000L7 (512GB, 3,000 MB/s)
So clearly:
heap insert time is b...
Difference between CLOCK_REALTIME and CLOCK_MONOTONIC?
...
"tick" -- any rough idea how big/long/CPU instructions is a tick on Linux/amd64? Or where I can get docs on any of this?
– kevinarpe
Dec 22 '14 at 3:58
...
What are the underlying data structures used for Redis?
...lying data structures used by Redis. But a bit of knowledge helps you make CPU v/s Memory trade offs. It also helps you model your data in an efficient manner.
Internally, Redis uses the following data structures :
String
Dictionary
Doubly Linked List
Skip List
Zip List
Int Sets
Zip Maps (depreca...
What is the runtime performance cost of a Docker container?
...ownload it for full access.
Taking a look at Disk I/O:
Now looking at CPU overhead:
Now some examples of memory (read the paper for details, memory can be extra tricky):
share
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improve t...
站长投放广告绝对不做的事:Google Adsense和百度联盟广告违规分析 - 更多技...
...告，这样的行为是被Google Adsense禁止的。
二、1、版权问题的网站博客禁止投放Google Adsense。主要是音乐MP3、视频、新闻组和图像结果等内容的网页上。例如电影类的网站、纯粹的新闻网站、纯粹的图片网站、引用第三方的视频...