high cpu usage fix

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

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

Using MySQL Slow Log to solve the problem of high CPU usage in MySQL sometimes finds that MySQL occupies a high CPU usage in Linux VPS, resulting in a high system load. This is probably

to modify the web. config, the file will not be re-compiled, If you modify the code to hide. CS or. aspx ,. files ). Mono supportMono_managed_watcherSet environment variables to valuesDisableTo reduce the number of file system polling transactions in your applications described above. Since it is a production environment, there will be no frequent updates to close this feature and it will not have a big impact, it can also save background thread resources. When running an ASP. NET Website on Li

/libgcc_s.so.1... done.Loaded symbols for/lib/libgcc_s.so.1Reading symbols from/lib/libpthread. so.0.... done.Loaded symbols for/lib/libpthread. so.0Reading symbols from/lib/libc. so.6...... done.Loaded symbols for/lib/libc. so.6Reading symbols from/lib/libresolv. so.2.... done.Loaded symbols for/lib/libresolv. so.2Reading symbols from/lib/lD. so.1. .. Done.Loaded symbols for/lib/lD. so.1Reading symbols from/lib/libnss_files.so.2... done.Loaded symbols for/lib/libnss_files.so.20x0ff1dbf0 in sele

When Server Load balancer is enabled, the CPU usage of svchost.exe is too high, leading to slow system exceptions. There are many problems with the high CPU usage of svchost.exe on the Internet.Article, Basically speaking about

you want, such as 7126, as long as not with other conflicts.2. Run regedit in the second place to open the Registry Editor. Find HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Terminal server\winstations\rdp-tcp, the same way, Remember to change the port number is the same as the above changes on the line.When the modifications are complete, close the Registry Editor. 3. If your VPS or server has Windows Firewall turned on, be sure to add the remote connection port you set to the firewall

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

then compresses and collates the memory space. Reference site: http://blog.csdn.net/lifetragedy/article/details/7708724 2, restart Tomcat after modifying the parameters to see if the parameters are valid Jmap-heap javapid View JVM Memory Allocations Jstat-gcutil Javapid 1000 30 View JVM Memory Recycle The above modifications should be able to complete the high performance of the Tomcat process. If you run over a period of time and look at the

::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

sys.dm_db_missing_index_group_stats s ten on s.group_handle = G.index_group_ Handle INNER JOIN sys.dm_db_missing_index_details d in d.index_handle = G.index_handle13 ORDER by [Total C OST] DESC;After locating the problem, create a new nonclustered index1 CREATE nonclustered INDEX ix_t_accesscontrol_f4 on dbo.t_accesscontrol2 (3 FObjectType4) include ([Fuserid], [ Faccesstype], [Faccessmask]) with (Statistics_norecompute = off, Ignore_dup_key = off, Allow_row_locks = ON,

: 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

Mysql causes high CPU usage. The server environment Liunx AS4 + PHP5 + Mysql5 + Apache 2 When I used the TOP command to query the system performance, I found that the CPU often reached 100% and started to think it was a DDOS attack ...... After a firewall is installed (does not work), you can start from the liunx syste

When users operate MindManager, they experience a slow mindmanager process and a percentage of high CPU usage that can affect the MindManager experience. So how to solve this problem, this article for you to answer, how to mitigate the operation MindManager slow process, high CPU