Recent Java applications, CPU usage has been very high, often up to 100%, through the following steps to solve the perfect, share.1.jps gets the PID of the Java process.2.jstack PID >> Java.txt Exports the thread stacks that the CPU consumes high processes.3.top-h-P PID to s
Analysis on High CPU usage of HBase Thrift2High-level analysis of HBase Thrift2 CPU usageDirectory
Directory 1
1. symptom 1
2. Problem locating 2
3. Solution 5
4. Related Code 5
1. symptom description
Port 9090 of the external connection times out, but the telnet port always succeeds. Using the top Command, we found th
How to locate Java threads with high CPU usageTools:1Jstack:jstack is used to print the Java stack information for a given Java process ID or core file or remote Debugging service, if it is on a 64-bit machine, you need to specify the option "-j-d64", The Jstack usage of Windows only supports the following way. pidstat : pidstat is primarily used to monitor all
How to handle high cpu usage in the win10 System
Since the Windows 10 system is upgraded and installed, the cpu usage of the win10 system is too high. Let's take a look at what to do if the c
A solution for high CPU usage of Xorg processes in Linux
Zhou yinhui
I would like to try it out. I upgraded the system from Ubuntu 9.04 to 9.10. But after the upgrade, it is called a depressing one. The CPU usage of the Xorg process is always
two-byte alignment. By default, the common GCC compiler uses 4-byte align, which ensures that the first address of the thread lock attribute variable is a multiple of 4, when m68k is used for compilation, the _ align member cannot ensure that the first address of the thread lock attribute variable is a multiple of 4 (actually a multiple of 2 ).3.2.3 parameter error asking what causes high CPU
Troubleshoot high CPU usage in Java
THE top Command finds that a process occupies 100% of the CPU. Use the ps command to determine which process is faulty. View the CPU usage list of the thread.
# Ps-mp PID-o THREAD, tid, time
View the W3p.exe application pool and Iisapp in IIS to see if the PID takes up CPU too high a process
Iisapp-a to display the performance list for the application pool.
Iisapp.vbs It is a scripting program that requires SP1 to be installed at 2003
and IIS7 can use its shell command directly.
C: "Windows" system32 "Inetsrv>appcmd.exe list WP to display
Sometimes because the
quiet.Process files: Cidaemon or Cidaemon.exeProcess name: Microsoft indexing ServiceProcess Category: Other processesEnglish descriptive narrative:Cidaemon.exe is a Indexing service which catalogues files on your computer to enable for faster file searches.Chinese references:Cidaemon.exe is an Indexing service that allows you to find files more rapidly.Producer: Microsoft Corp.Belongs to: Microsoft Windows Operating SystemSystem process: YesBackground program: YesNetwork Related: NoCommon erro
quiet.Process files: Cidaemon or Cidaemon.exeProcess name: Microsoft indexing ServiceProcess Category: Other processesEnglish descriptive narrative:Cidaemon.exe is a Indexing service which catalogues files on your computer to enable for faster file searches.Chinese references:Cidaemon.exe is an Indexing service that allows you to find files more rapidly.Producer: Microsoft Corp.Belongs to: Microsoft Windows Operating SystemSystem process: YesBackground program: YesNetwork Related: NoCommon erro
Java program CPU usage is too highUsing the top command to find the Java process PID with high usage rateFind the thread tid based on the process number:ps -mp PID -o THREAD,tid,timeConvert Tid to 16 binary:printf "%x\n" TIDTo view the process stack information through the Jstack command:jstack PID |grep TID16 -A 100No
Solution for high memory or CPU usage of linux c ++ applications _ 20161213, linux_20161213
For the vast majority of real-time programs, the balance between the loss of machines and the processing speed caused by the Loop Problems in real-time processing related programs, interaction with other programs and the impact on other functions will inevitably become the
CPU immediately drops down, at 50% ~ Between 70%.
Call show prosslist again, and the SQL call of website A rarely appears in the result list. However, the host runs several Discuz Forum programs, and several tables of the Discuz Forum also have this problem. As a result, the cpu usage was reduced again. (Notes for 200
CPU immediately drops down, at 50% ~ Between 70%.
Call show prosslist again, and the SQL call of website A rarely appears in the result list. However, the host runs several Discuz Forum programs, and several tables of the Discuz Forum also have this problem. As a result, the cpu usage was reduced again. (Notes for 200
::taskthread (PPARAM=0X7FFF617EAFE0) at../src/cicdn.cpp:128 #2 0x00002acc4a90b73a in Start_thread () from/lib/libpthread.so.0 #3 0X00002ACC4A40D6DD in Clone ()From/lib/libc.so.6 #4 0x0000000000000000 in?? ()Take a look at the code for 101 lines:(GDB) L 98 int csendfile::sendfile (const string pathname) 99{+ int n;101 while (1)102 { 103 n++;104}//read file and sendNow we've got the code location for the problem, and the loop here is for illustrative purposes only.Finally, don't forget detach ()Af
Methods and steps to analyze the high CPU usage of Java threads:
1) To view the CPU occupancy rate TOP10 PID
[Root@qipsuit1 ~]# Ps-aux | Sort-k3nr | head-10
Warning:bad syntax, perhaps a bogus '-'? See/usr/share/doc/procps-3.2.8/faq
root 30428 1.3 12513592 430904 pts/7 Sl 14:20 135:35 java -djava.ext.dirs=/qip/r
:
Cidaemon.exe is an index service that allows you to search for files at a higher speed.
Prepared by: Microsoft Corp.
Microsoft Windows Operating System
System Process: Yes
Background Program: Yes
Network Problems: No
Common Errors: N/
Memory usage: N/
Security grade (0-5): 0
Spyware: No
Advertising software: No
Virus: No
Trojan: no solution: disabling the Indexing Service can solve this problem. This service is generally rarely used and cannot be us
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