ram

How to limit ArangoDB RAM usage inside of a docker container?

由 拈花ヽ惹草 提交于 2019-12-12 18:34:43
问题 We use ArangoDB 3.3.14 (Community Edition) with MMFiles storage engine for a relatively large data set (a bit over 30 GB when you back it up). We run it inside of a docker container using ECS. Our host VM has 64 GB of RAM and we have dedicated 55 GBs exclusively for ArangoDB container (we set a hard limit for that container to 55 GBs). When ArangoDB is just started and have all the collections loaded into the RAM it would take about 45 GBs, so we have about 10 GBs of free RAM to be used for

LZMA SDK decompress for iOS (xcode) using too much RAM

由 南楼画角 提交于 2019-12-12 12:04:18
问题 I am trying to use the LZMA SDK in an iPhone/iPad app, my starting point was the LZMA example project for iPhone provided by Mo Dejong, available here: https://github.com/jk/lzmaSDK Original was here: http://www.modejong.com/iOS/lzmaSDK.zip (I tried both and I get the same result from both). The problem is that the extract uses as much RAM as the .7z contains uncompressed. In other words, say I have a 40MB compressed file, the uncompressed file is a binary sqlite DB that is about 250MB, it

多种单片机结构和原理讲解

由 我与影子孤独终老i 提交于 2019-12-12 10:34:42
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 89C51单片机结构框图 1、一个8位 的微处理器CPU。 2、片内数据存储器(RAM128B/256B）:用以存放可以读/写的数据，如运算的中间结果、最终结果以及欲显示的数据等。 3、片内4kB程序存储器Flash ROM（4KB）:用以存放程序、一些原始数据和表格。 4、四个8位并行I/O（输入/输出）接口 P0~P3:每个口可以用作输入，也可以用作输出。 5、两个或三个定时/计数器: 每个定时/计数器都可以设置成计数方式，用以 对 外部事件进行计数，也可以设置成定时方式，并可以根据计数或定时的结果 实现计算机控制 6、一个全双工UART的串行I/O口:可实现单片机与单片机或其它微机之间串行通信。 7、片内振荡器和时钟产生电路:但需外接晶振和电容。 8、五个中断源的中断控制系统。 9、具有节电工作方式：休闲方式及掉电方式。 在空闲方式中，CPU停止工作，而RAM、定时器/计数器、串行口和中断系统都继续工作。此时的电流可降到大约为正常工作方式的15%。在掉电方式中，片内振荡器停止工作，由于时钟被“冻结”，使一切功能都暂停，故只保存片内RAM中的内容，直到下一次硬件复位为止。这种方式下的电流可降到15 μA以下，最小可降到06 μA。 结构： 由中央处理单元（CPU）、存储器（ROM及RAM）和I/O接口组成

How do I limit RAM to test low memory situations?

由 我与影子孤独终老i 提交于 2019-12-12 08:48:34
问题 I'm trying to reproduce a bug that seems to appear when a user is using up a bunch of RAM. What's the best way to either limit the available RAM the computer can use, or fill most of it up? I'd prefer to do this without physically removing memory and without running a bunch of arbitrary, memory-intensive programs (ie, Photoshop, Quake, etc). 回答1: Use a virtual machine and set resource limits on it to emulate the conditions that you want. VMWare is one of the leaders in this area and they have

to SORT 1 BILLION of integer numbers with small physical memory

由 拥有回忆 提交于 2019-12-12 08:17:56
问题 Want to SORT 1 BILLION of integer numbers and my system has just 1 GB of RAM.What could be the fastest and efficient way to sort? Say we have an input in a text file an integer per line. We are using java program to sort. I have specified RAM as we cannot hold all the input integers in the RAM. Update: Integers are 7 digit numbers. 回答1: The simplest thing to do is break the input into smaller files that can fit in memory and sort each, and then merge the results. Guido van Rossum has a good

Sorting 1 million 8-digit numbers in 1 MB of RAM

由 断了今生、忘了曾经 提交于 2019-12-12 07:09:52
问题 I have a computer with 1 MB of RAM and no other local storage. I must use it to accept 1 million 8-digit decimal numbers over a TCP connection, sort them, and then send the sorted list out over another TCP connection. The list of numbers may contain duplicates, which I must not discard. The code will be placed in ROM, so I need not subtract the size of my code from the 1 MB. I already have code to drive the Ethernet port and handle TCP/IP connections, and it requires 2 KB for its state data,

32bit cpu: how much memory can it use? [closed]

由 試著忘記壹切 提交于 2019-12-12 07:01:07
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . now i know this question has been asked quite a few times now but i'm not really wondering how much memory a 32bit processor can address neither theoretically nor practically. just a quick heads up, i come from a civil engineering background so i'm still learning in terms of

My AVD creator window is missing setting RAM option

由 筅森魡賤 提交于 2019-12-12 06:58:47
问题 I am new to Android.I have made a HelloWorld application and want to run it in Android emulator.But the emulator is not showing anything apart from the text 'Android'. I later come to know that my AVD creator window is incomplete.It is missing the setting memory option for RAM and SD card. Now, I have only 1 GB RAM and running XP SP2, so how I can get a proper window to create AVD? 回答1: I got the solution myself.I did not install anything apart from Android Developer Tools such as Open GL ES,

How to mount a drive in RAM in Java

由 南楼画角 提交于 2019-12-12 06:37:11
问题 I'm trying to code a RAMDisk, but I don't know how to mount a drive in RAM. I'm going to be writing this in Java. But could anyone point me to the way of making the disk in RAM with a letter and name. Thanks! EDIT: For clarification, I want to make a file with virtual files like stored in RAM. DataRam's Ramdisk is a good example of what I want to do. It creates a file and mounts a drive. The drive is in RAM and it writes to the file. How can I achieve this? (I wanted to create a RAMDisk for

How to store image in memory more compact than usual Bitmap instance and access it fast enough?

由 帅比萌擦擦* 提交于 2019-12-12 03:18:11
问题 I have images like 5000*4000 pixels that I render every frame on form. Such image loaded like Bitmap bmp = Image.FromFile("test.png"); uses around 100 mb RAM, while file size is 40 - 50 mb! That way my prog already uses ~500 bm RAM. How to store that images more RAM efficient, but be able to cut parts from it fast enough? I have one huge image and cut parts from it to render according to view position. I call render method at 50 FPS and can't afford loading images from file every frame, since
订阅 ram