ramdisk

Android gradle building error in ramdisk

由 [亡魂溺海] 提交于 2020-01-15 10:07:10
问题 I am using ramdisk in windows. But when I use the windows temp folder in ramdisk, I see the following errors. (Here 'M:\Temp\' is %TEMP% in windows) Do I need more setting to use RAMDISK in windows 10? app:checkManifestChangesDebug :app:transformClassesWithStackFramesFixerForDebug Jul 26, 2018 4:32:19 PM java.lang.invoke.ProxyClassesDumper getInstance WARNING: Directory M:\Temp\lambdas6090245423481063565 is not writable - dumping disabled Exception in thread "main" java.lang

How do I create a RAM disk using Node.js?

由 你说的曾经没有我的故事 提交于 2019-12-22 06:56:42
问题 I would like to create a RAM disk programmatically using Node.js, no matter what the underlying OS is (OS X, Linux and Windows should be supported). What is the best way to achieve this? Of course I can run a command as a child process, but I would need to write this code individually for each OS. For obvious reasons I'd like to avoid this. Is there a better approach (even a module that does it would be fine)? 回答1: In a low level and uncommon operation like this, there is no standartized way

uboot里读sd卡内容

由 混江龙づ霸主 提交于 2019-12-20 07:14:06
1. sd卡升级命令 mmcinit 0 fatload mmc 0:1 0 uzImage.bin 80000 fatload mmc 0:1 1000000 initrd.gz 580000 bootm 0 2. U-Boot脚本 可以保存成nfs.script，放在tftp的根目录 setenv bootargs mem=214M root=/dev/nfsroot nfsroot=10.1.1.2:/home/nfs_android ip=dhcp rw console=ttyS0,115200n8 androidboot.console=ttyS0 init=/init lcdid=1 lpj=750000 如何加载呢 setenv bootcmd setenv ipaddr 10.1.1.3/;setenv serverip 10.1.1.2 / ;setenv gatewayip 10.1.1.1 / ;tftpboot 02000000 nfs.script / ;autoscr 这里/;把多个命令组成一个命令。 这里bootcmd引用bootargs U-Boot允许存储命令序列在纯文本文件中，用命令mkimage将该文件转换成脚本映像，该映像可用U-Boot命令autoscr执行。 转换成映像文件的方法列出如下： bash$ mkimage -T script

busybox in embedded linux shows “applet not found”

由 情到浓时终转凉″ 提交于 2019-12-13 11:50:21
问题 I compiled busybox myself,and I put it in our embedded linux. But I have some questions. Question 1:When I try to use some command such as gzip,it prints "gzip: applet not found".While I checked the menuconfig of busybox,I make sure that I've selected "gzip". Question 2:I used to work with VIM,but busybox just provide VI.So I make a link VIM to VI,but when I typed vim and run it,it also show "vim: applet not found". Anybody can help me with this problem that "applet not found"? Thank you very

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

编译android源代码以及ramdisk.img system.img userdata.i...

由 社会主义新天地 提交于 2019-12-10 15:56:38
一、编译android 源码 参考 http://my.oschina.net/u/561492/blog/89965 编译完成后，可以在源码目录的out/target/product/generic/目录下看到编译好的ramdisk.img、system.img 和 userdata.img了。 二、 Android ramdisk.img system.img userdata.img 介绍与使用 android源码编译后得到system.img,ramdisk.img,userdata.img映像文件。其中， ramdisk.img是emulator的文件系统，system.img包括了主要的包、库等文件，userdata.img包括了一些 用户 数据，emulator负责加载这3个映像文件后，会把system.img和userdata.img分别加载到 ramdisk文件系统中的system和 userdata目录下（会发觉有相似性）。 我们会发觉编译生成的root 文件夹 内容与android运行时根目录内容相似，ramdisk根文件系统中包含一些对于启动android的很重要的文件，比如内核启动完后加载的第一个进程init、一些重要的配置文件等，总之它控制着整个android的启动。根据 init.rc,init.goldfish.rc来初始化并装载系统库、 程序

Manual Memory Paging in the .Net Framework (Is it possible / How?)

由 我怕爱的太早我们不能终老 提交于 2019-12-10 07:22:31
问题 I have a major interest in writing a database management system. Having read a few pages about how SQL Server 2000 was implemented, I discovered that 4KB memory pages were used, each being a direct copy of a 4KB page on the hard disk. These pages were loaded into RAM as needed, and then lazily wrote back to disk when they fell idle (oversimplification). Being in the planning stage of my project, I am wondering if this level of control is possible in code running on the CLR. I realize that C,

Why is the root filesystem is loaded into a ramdisk?

由 筅森魡賤 提交于 2019-12-09 13:23:04
问题 I am studying the boot process in Linux. I came across this sentence "RAM is several orders of magnitude faster than a floppy disk, so system operation is fast from a ramdisk" The kernel will anyway load the root filesystem in RAM for executing it. So my question why do we need a ramdisk for loading the the root filesystem, if the kernel loads the root file system into RAM ? 回答1: The documentation for SUSE Linux provides a good explanation of why Linux is booted with a RAMDisk: As soon as the

Manual Memory Paging in the .Net Framework (Is it possible / How?)

由 时间秒杀一切 提交于 2019-12-05 16:09:08
I have a major interest in writing a database management system. Having read a few pages about how SQL Server 2000 was implemented, I discovered that 4KB memory pages were used, each being a direct copy of a 4KB page on the hard disk. These pages were loaded into RAM as needed, and then lazily wrote back to disk when they fell idle (oversimplification). Being in the planning stage of my project, I am wondering if this level of control is possible in code running on the CLR. I realize that C, C++, or D is probably a better fit for this task, but I would like to prove that to myself first. Part

How do I create a RAM disk using Node.js?

由 为君一笑 提交于 2019-12-05 09:43:21
I would like to create a RAM disk programmatically using Node.js, no matter what the underlying OS is (OS X, Linux and Windows should be supported). What is the best way to achieve this? Of course I can run a command as a child process, but I would need to write this code individually for each OS. For obvious reasons I'd like to avoid this. Is there a better approach (even a module that does it would be fine)? In a low level and uncommon operation like this, there is no standartized way to generate a RAM disk, it is platform dependent and hence there is no functionality of this in NodeJS and
订阅 ramdisk