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linux - Help: php high CPU usage

Linux-deployed lnmp recently found that the server CPU usage is very high. I used strace -cp 30811 to find that one access has the most severe usage. Then I called strace -T -e access -p 30811. The result is as shown in the figure: But I can’t find it in the program. There is a place where I am look...

天蓬老师 2017-06-30 09:55:09

objective-c - What are the possible reasons for high CPU usage in iOS development?

Developing iOS results in a page with a very high CPU usage.

滿天的星座 2017-05-02 09:28:42

mongodb cpu 占用150%?

mongodb 的 cpu 占用一直很高，长期保持在150%。准确的说是cpu时间片的占用，所用的服务器是4核的物理机，cpu占用在30%到40%之间，不知道这样是否正常。服务读写都不是特别高 top PID USER PR NI VIRT RES SHR S...

習慣沉默 2017-04-28 09:05:26

Query causing huge CPU utilization and high latency

The following query is causing huge CPU utilization and high latency in my database environment. I tried using different types of indexes to improve query performance, but unfortunately any index did not help improve performance. Is there any suggestion to rewrite the query to get the same result. q...

P粉182218860 2024-01-10 17:21:24

What should I do if fastCGI takes up too much CPU?

Mine is a windows+iis environment. If the number of visitors is slightly more, the CPU usage will be directly 100. There are many CGI / fastCGI processes. I would like to ask the experts what is the reason for this and how to solve it. Mine is PHP7.4, I tried php5.6 and the same thing

P粉604174187 2022-04-30 01:04:31

java - How to stress test the CPU of http service (tomcat)

Premise: Hello everyone, I now need to stress test a tomcat server to find out where the bottleneck of the application is. However, during the test, the CPU occupied by the jvm resource has not reached 50%, and mysql has been dragged down. Now I want to find out the bottleneck of the application ser...

女神的闺蜜爱上我 2017-06-28 09:22:50

python - Django web project has high CPU usage. How to perform performance analysis?

First of all, I have never done performance analysis. I am a newbie. When I was maintaining the previous code, the project had a very high CPU usage, which could probably eat up the CPU. Now that the original code maintainer has resigned, it is difficult to ask people. I am helpless. Let me ask you ...

typecho 2017-06-12 09:26:40

Laravel - High CPU utilization after deployment

I'm having serious problems deploying my Laravel application. This is a news site, nothing complicated. The entire homepage is cached in Redis as pure HTML, and query results are also stored in Redis, so MySQL usage is very minimal. The application is fully functional, so we decided to test it in th...

P粉769413355 2024-03-27 11:26:47

PhpStudy8.0 CPU is too high

As shown in the picture:

chao 2019-10-10 16:48:23

node.js - Can a single-core CPU use cluster to open multiple threads?

In order to reduce the chance of downtime. I plan to use node's cluster module to enable multi-threading. One master thread is responsible for scheduling, and multiple worker threads are responsible for processing business. Now the server's CPU only has a single-core CPU, which should be able to hav...

天蓬老师 2017-06-27 09:19:14