dropbox oom

1. What is the relationship between OOM (memory overflow) and memory Leak (leak)? Oom may be due to memory Leak, or it may be that your application consumes more RAM (than the slice-browsing type). Therefore, the occurrence of oom is not necessarily memory Leak.Also, memory leak does not necessarily cause oom, and if t

The oom problem in Spark is the following two scenarios Memory overflow in map execution Memory overflow after shuffle The memory overflow in map execution represents the operation of all map types, including: Flatmap,filter,mappatitions, and so on. The shuffle operation for memory overflow after shuffle includes operations such as Join,reducebykey,repartition. After summarizing my understanding of the spark memory model, I summarize

Reprinted please indicate the source: http://blog.csdn.net/guolin_blog/article/details/9316683 The main content of this article is Android Doc. I have done some processing after translation, and good English friends can directly read the original text. Http://developer.android.com/training/displaying-bitmaps/index.html Efficient loading of large images Many images are often used when writing Android programs. Different images have different shapes and sizes, but in most cases, these images will

Android efficiently loads large images to avoid OOM Images are often loaded in our projects. Sometimes, if there are too many images to be loaded, the program will become very slow. If the OOM is heavy, the App will be suspended. Translate https://developer.android.com/training/displaying-bitmaps/index.html to learn the functions. Images have various shapes and sizes, but in most cases, these images will b

Android image loading and OOM Problems First, it took a week to solve the problem. I tried very hard to find out where the OOM memory overflow problem exists, but no result was found, I always thought that I was using Picaso to load the image framework and only loaded the image. However, when the activity was destroyed, the memory was not released, so I tried to solve the problem myself: 1. Change the

Oom-killer: Out-of-memory (OOM) killer is a protection mechanism used to select a process as the kernel is forced to continue to run when the memory is seriously insufficient, kill it to release the memory and alleviate the problem of insufficient memory.We can see that this method has limited protection for processes and cannot completely protect processes. How to disable and activate

Reprint Please specify source: http://blog.csdn.net/guolin_blog/article/details/9316683The main content of this article comes from Android Doc, I have done some processing after translation, English good friends can also directly read the original text.Http://developer.android.com/training/displaying-bitmaps/index.htmlCompress load Large pictureWe often use a lot of pictures when we write the Android program, different pictures will always have different shapes, different sizes, but in most case

Everyone good, today to share is to resolve the problem of the resolution of the picture Oom, we can use bitmapfactory here a variety of decode methods, if the picture is very small, will not appear oom, but when the picture is very large It is necessary to use bitmapfactory.options this dongdong, options in the main two parameters are more important. Options.injustdecodebounds = false/true; Pictu

One day early morning, I received a db Fault Warning and went to the machine for check. mysql was restarted by the myqld daemon. Check varlogmessages and the latest dmesg and find that the mysql process is One day early morning, I received a db Fault Warning and went to the machine for check. mysql was restarted by the myqld daemon. Check/var/log/messages and the latest dmesg and find that the mysql process is One day early morning, I received a db Fault Warning and went to the machine for

Compress Bitmap based on the size of the ImageView to avoid OOM and imageviewoom This article is reproduced in: http://www.cnblogs.com/tianzhijiexian/p/4254110.html Bitmap is one of the culprit of OOM. When we download images from the network, we cannot know the exact size of the images. Therefore, to save memory, a thumbnail is usually cached on the server, improves the download speed. In addition, we can

Check the log/var/log/messages and find an error similar to "Out of Memory: Kill process ...".I didn't know OOM-killer {out of memory killer} in the past. Today, I happen to have a day off, so I can learn how to raise my mind!OOM_killer is a Linux self-protection method. When the memory is insufficient, it won't be too serious.In kernel 2.6, insufficient memory will wake up oom_killer, pick out/proc/To protect important processes from

Vm. swappiness0 may cause OOM in the latest kernel, and MySQL may be killed unexpectedly. please use RHEL/CentOS 6.4 and the MySQL Kernel updated. Note that vm. the default behavior of swappiness = 0 has been modified. if you continue to set vm. swappiness = 0, which may cause system memory overflow and cause MySQL to be killed unexpectedly. In the previous MYSQL optimization three axes on LINUX, we recommend that you set vm. swappiness = 0. To avoid

Load large images efficientlyWe often use a lot of pictures when we write the Android program, different pictures will always have different shapes, different sizes, but in most cases, these images will be larger than the size of our program. For example, the pictures in the system pictures are mostly taken from the mobile phone camera, the resolution of these images is much higher than the resolution of our phone screen. As you should know, we write applications that have a certain memory limit

I. Scenarios and causes of the oom problem A good app always has beautiful pictures, so the loading of images in Android development is always avoided, and in the process of loading pictures, if handled improperly, there will be oom problem. So how to solve this problem completely? This article will specifically describe this knowledge.First, let's summarize that the

Two Linux memory problems have occurred recently. One is that Oom-killer is triggered to cause system crashes. 1. First confirm that the system version is 32-bit # Uname-alinux alarm 2.6.9-67. elsmp #1 SMP wed Nov 7 13:58:04 est 2007 i686 i686 i386 2. Let's take a look at the 32-bit Linux memory management structure. # DMA: 0x00000000-0x00999999 (0-16 Mb) # lowmem: 0x01000000-0x037999999 (16-896 MB)-size: 880 MB # highmem: 0x038000000- The k

) Math. ceil (Bitmapfactoryoptions.outwidth/imagew); if (Yratio > 1 | | xratio > 1) {if (Yratio > Xratio) {bitmapfactoryoptions.insamplesize = Yrat Io } else {bitmapfactoryoptions.insamplesize = Xratio; } } bitmapfactoryoptions.injustdecodebounds = False;//false---allowing th

The principle of computer graphics representation Loading a large image appears oom Zoom load a large picture resource Create a copy of the original Common APIs for graphics processing The beauty 美图秀秀 of the Fool edition Drawing version The principle of computer graphics representationThe first thing to make clear is that there is a very big difference in the amount of memory required for a picture to be stored in memory a

Android methods are more than 64 k, OOM compilation, and slow compilation solutions ., Androidoom Now, the project's leancloud instant messaging is changed to instant messaging. When easeui is introduced, the number of methods exceeds the upper limit. Search for the problem and the solution is simple. Here is a simple record, which records another problem caused by this solution in sequence. 　 I. solution: the number of solutions exceeds 64 KB Problem

Bitmap Bitmap = Bitmapfactory.decoderesource (Getresources (), r.drawable.big); Bitmap bitmap2 = Bitmapfactory.decoderesource (Getresources (), r.drawable.big); Bitmap bitmap3 = Bitmapfactory.decoderesource (Getresources (), r.drawable.big);Three Bitmap are created and cited to prevent recycling.Is the memory monitor on as, the maximum memory 191 MB (ok 16MB).The picture is not created 9.7 MB, a picture of the two megabytes, a figure of 175MB.In three pictures, there was an

Recently, a project is a standalone project. You do not need to obtain any data from the network. All images and texts are from the local database. Because the application involves a large number of images and the memory overflow problem occurs during the development process, you can search for information in various aspects, finally, with the help of the DDM plug-in, it was confirmed that the memory was caused by memory leakage (the memory size of the data object went up straight and was not st