android - When starting the application, nothing is done in MainActivity and setcontent is not executed. Why is the memory occupied 25m?

When starting the application, nothing is done in MainActivity and setcontent is not executed. Why does the memory usage only reach 25m?

高洛峰 2017-05-16 13:32:41 0  1  513

After the website goes online, Apache quickly takes up all the memory and causes the server to crash.

There is a company website with more than 6,000 IP visits per month. The server configuration was changed to a 4G memory centos server. Apache 2.4 is used as the website server. The website uses pseudo-static reverse proxy access through the proxy server. Just about 5 minutes after it went online, a...

ringa_lee 2017-05-16 16:57:22 0  1  631

The memory occupied by git is high. I deleted it and then it comes back. I can't delete it. What's going on?

When I used webstorm, it got stuck after a while. I checked the memory usage and found that git was taking up a lot, so I deleted it. But after a while, webstorm got stuck again. I checked and found that git was back. I deleted and deleted it several times in a row. return. Makes webstorm easy to us...

大家讲道理 2017-07-05 10:47:02 0  1  1831

I only learned the redis command line, but how to apply it to PHP caching?

I only learned the redis command line, but how to apply it to PHP caching?

给我你的怀抱 2017-05-24 11:31:53 0  3  940

If mongodb is used as a persistent storage database, is it necessary to use redis for another layer of cache?

If mongodb is used as a persistent storage database, is it necessary to use redis for another layer of cache? ps: I have observed that the mongodb server process takes up more than 1g of memory when running even if the data volume is very small (capacity is more than 1g). Could it be that mongodb it...

滿天的星座 2017-05-16 13:19:03 0  3  1087

How to limit the use of server resources by a certain website in apache web server?

For example, limit the usage of CPU and memory by this website.

ringa_lee 2017-05-16 17:04:22 0  2  602

How to solve the problem that php-cgi does not release the memory and the memory is full

The system is a Windows+Apache system, which will generate many PHPcgi processes but will not release resources. Finally, the memory will be 100% and the system will freeze. Is there any way to solve it?

哇哈哈 2020-04-22 13:37:02 0  0  786

Best practices for Apache memory and processes under high load

Check whether Apache is running in prefork working mode {code...} View the memory currently occupied by each process {code...} The RES column is the amount of memory used by the Apache process, the sixth column from the left. Calculate the number of processes. The maximum number of processes = the t...

为情所困 2017-05-16 17:03:02 0  1  743

Using an extremely long List in Python results in excessive memory usage

I need to use a List with a length of more than 500,000 in a program, but the result is that the memory usage increases instantly. What method should be used to optimize it?

扔个三星炸死你 2017-07-05 10:51:29 0  1  1439

In JS, does 'a' occupy 2 bytes or 1 byte in memory?

1. In JS, does 'a' occupy 2 bytes or 1 byte in memory? JS is encoded in UCS-2, so it should take up 2 bytes, right? 2. Are JS strings encoded the same in different engines? 3. In JS, how does a string represent the "end" in memory? Is it also necessary to add a \0?

世界只因有你 2017-07-05 10:46:22 0  2  1163

How to get heap dump in case of outofmemory

Tomcat is outofmemory on the server and is unresponsive. Is there any way to know what is occupying memory? Please recommend tools and methods.

大家讲道理 2017-05-27 17:41:34 0  1  647

Solution to the memory usage problem caused by upsertMany in Nest.js

There is a scheduled task that is executed every 5 minutes when using upsertMany to insert a large amount of data. I found that the memory increases every time a task is executed and the GC cannot reclaim the memory. How can I solve this problem? Using nestjs, @mikro-orm/nestjsthis.emBi.upsertMany(S...

P粉787806024 2023-08-15 23:04:41 0  1  604

javascript - Will variables defined as undefined in JS occupy memory?

{code...}

ringa_lee 2017-05-19 10:14:18 0  1  871

The relationship between obtaining file input stream and memory usage in JAVA

A Java program obtains the input stream of a file, such as the input stream of a 50M text file. At this time, has the program loaded the entire file into memory? Has it occupied 50M of space in memory? Or is there just one entrance, and you need to loop through the contents...

三叔 2017-06-15 09:21:27 0  3  989

php7 occasionally slow problem

I am currently using PHP for interface development, and found that less than 1% of the requests are always very slow. Looking at the machine monitoring, I found that the memory and CPU have no jitter at all. Redis is used in the interface, and the redis monitoring is also normal. Have you encountere...

PHP中文网 2017-05-16 13:15:27 0  1  361

shell - It is said on the Internet that this is a logical volume problem of HP-UX. Can someone please explain it?

Use the tar command to package a folder into another folder, and an error is reported. It should be due to insufficient memory, as follows: Use the bdf command to view the partitions, and only one volume is full. Looking for a solution?

怪我咯 2017-05-16 16:35:46 0  1  546

c++ - What are the advantages of VS2014 in debugging compared to codeblocks, devcpp and other software?

I just uninstalled vs. It feels too big and takes up too much memory. I usually only type some C++ algorithm questions with black windows, and I feel that using codeblocks is enough. Later, I heard someone say that the debugging function of VS is powerful. I want to know where the power is?

PHP中文网 2017-07-04 13:45:30 0  2  1609

php - Laravel uses redis to store sessions

The redis storage session is configured in Laravel, but the problem is how to set the session to expire after a week, preferably early in the evening? In addition, after the user logs out, use forget to find that the session in redis still exists. How can I get the sessionid from redis? session info...

给我你的怀抱 2017-05-17 09:55:24 0  1  690

Python global variable release?

Global variables need to be used in the project to store a large amount of data. This project will generally not be stopped, so this part will not be recycled. I have been tracking it for a while now, and I feel that this part of the memory is occupied, which greatly affects subsequent operations. S...

大家讲道理 2017-05-24 11:35:10 0  2  661