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TokuMX vs. MongoDB 性能对比 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...产数据2亿多条导入测试
先建集合,创建3个索引,包括_id共4个索引。
TokuMX 5个多小时导完数据,官方MongoDB 2.2.4版本竟然花了2天2夜多,近58个小时
使用mongostat统计,每分钟取值一个,纵坐标为inserts/s,横坐标为分钟。
...
Static nested class in Java, why?
...an anchor link to the comment to work, but its this comment: #comment113712_253507
– Zach Lysobey
Nov 1 '12 at 18:23
...
What is RSS and VSZ in Linux memory management
...thods mentioned at: Memory usage of current process in C
main.c
#define _GNU_SOURCE
#include <assert.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>
typedef struct {
unsign...
JavaScript: filter() for Objects
...ng prototypes. Second, developer.mozilla.org/en/JavaScript/Reference/Global_Objects/… -- "Creates a new array with all elements that pass the test implemented by the provided function." Implementing the exact opposite on a global seems pretty silly, doesn't it?
– pyrotechnick...
YouTube API to fetch all videos on a channel
...eos from a channel:
https://www.googleapis.com/youtube/v3/search?key={your_key_here}&channelId={channel_id_here}&part=snippet,id&order=date&maxResults=20
After that you will receive a JSON with video ids and details, and you can construct your video URL like this:
http://www.yout...
VS 2010 Test Runner error “The agent process was stopped while the test was running.”
... 'QTAgent32.exe' (Managed
(v4.0.30319)): Loaded
'C:\TestResults\bdewey_XXXXXX072
2011-01-11
17_00_40\Out\MyCode.dll',
Symbols loaded. E, 9024, 9,
2011/01/11, 17:00:46.827,
XXXXX072\QTAgent32.exe, Unhandled
Exception Caught, reporting through
Watson: [Exception message]
In my ca...
Finding index of character in Swift String
... 1.x) to get the number of characters. That also applies to positions. The _position is probably an index into the raw array of bytes and they don't want to expose that. The String.Index is meant to protect us from accessing bytes in the middle of characters.
That means that any index you get must ...
How to elegantly deal with timezones
...Time DateCreated
{
get { return CRM.Global.ToLocalTime(_DateCreated); }
set { _DateCreated = value.ToUniversalTime(); }
}
private DateTime _DateCreated { get; set; }
...
}
2 - In a global helper we make our custom function "ToLocalTime":
...
Java URL encoding of query string parameters
... url = "https://example.com?q=" + URLEncoder.encode(q, StandardCharsets.UTF_8);
When you're still not on Java 10 or newer, then use StandardCharsets.UTF_8.toString() as charset argument, or when you're still not on Java 7 or newer, then use "UTF-8".
Note that spaces in query parameters are represe...
REST vs JSON-RPC? [closed]
...EST): http://www.ics.uci.edu/~fielding/pubs/dissertation/evaluation.htm#sec_6_5_2
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