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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...
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...
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
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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...
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...
Unable to load DLL 'SQLite.Interop.dll'
...eferencing it to use a Platform target of 'x86' or 'x64', rather than 'Any CPU'.
– Andrew Stephens
Jun 8 '15 at 10:02
2
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How many socket connections can a web server handle?
... Apache] with async designed application software)
Good performance/dollar CPU / Ram. Today, arbitrarily, let's say i7 (4 core) with 8GB of RAM.
A good firewall/router to match.
No virtual limit/governor - ie. Linux somaxconn, IIS web.config...
No dependency on other slower hardware - no reading fro...
Visual Studio 2012 Web Publish doesn't copy files
...me issue and realized it was because the publish settings defaults to "Any CPU", but my solution is set to "x86". Changing the Settings in the Publish to x86 fixed the issue.
– Sam
Apr 17 '13 at 17:57
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