high cpu usage fix

　What is CPU usage? CPU usage is actually the CPU resource that your program runs on, indicating that your machine is running a program at some point in time. The higher the usage rate, the more your machine runs a lot of program

Operating Win7 Pure version of the system encountered a sudden high CPU usage and suddenly become low, seriously slowing down the system running speed, but also led to computer fever, if a long time, the loss of computer hard disk is very large, why this situation? Many users do not know the CPU

SQL Server checks CPU usage. At noon today, a friend asked me to help him check the database. The operating system is Windows2008R2, the database is SQL2008R264-bit 64 GB memory, and the 16-core CPU hardware configuration is still relatively high, he said that the server is running Kingdee K3 software, and there are mu

from Sys.dm_db_missing_ind EX_DETAILS5 GROUP by Db_name (database_id) 6 ORDER by 2 DESC;1 SELECT TOP 2 [Total cost ] = ROUND (Avg_total_user_cost * avg_user_impact * (User_seeks + User_scans) , 0) 3 , avg_user_impact 4 , TableName = statement 5 , [equalityusage] = equality_columns 6 , [ Inequalityusage] = inequality_columns 7 , [Include cloumns] = Included_columns 8 from Sys.dm_db_missing_index _groups g 9 INNER JOIN sys.dm_db_miss

I CPUReasons or possible reasons for high usageCPUHigh usage refers to the high number of queries on the physical hard disk; high memory usage refers to the physical disk-Virtual Memory-Multiple data exchanges between three memory types Anti-virus software may cause faults

The w3wp occupancy rate in the discovery process is too high. After the query, found as follows: W3wp.exe is a process that is associated with an application pool in IIS (Internet Information Server), and if you have multiple application pools, there will be multiple W3wp.exe process instances running. This process is used to allocate a large amount of system resources. This process is of great importance to the stability and security of the system an

After php encryption is put into the server apache occupies a high cpu. after php encryption is put into the server apache occupies a high cpu, it is easy to reach 100% local encryption program test no problem, mainly Internet, once encrypted, the cpu

1.50 0.00 0.50 0.00 0.00 0.00 0.00 0.00 98.0004:41:15 PM 14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.0004:41:15 PM 15 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.0004:41:15 PM 16 0.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 99.5004:41:15 PM 17 0.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 99.5004:41:15 PM 18 0.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 99.5004:41:15 PM 19 0.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 99.5004:41:15 PM 20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.0004:41:15 PM 21 0.00 0.00 0.00 0

: During the recent website activities, the order volume was several times more than usual. During this period, the cpu usage of the two APIs reached 60%, and the memory usage was normal. Preliminary suspicion is the reason for the large amount of orders, so I am reading the code for shopping cart, settlement, and order submission, but I don't feel it is useful,

(3 FObjectType4) include ([Fuserid], [ Faccesstype], [Faccessmask]) with (Statistics_norecompute = off, Ignore_dup_key = off, Allow_row_locks = ON, Allow_page_lo CKS = ON) on [primary]5 GO6 7 Drop index IX_T_ACCESSCONTROL_F4 on T_accesscontrolCPU usage back to normalTrace template and trace file download, use SQL2008R2 version: files.cnblogs.com/lyhabc/trace Template and Trace.rarSummarizeFrom a number of historical experience, if the

How to locate a dead loop or high CPU usage (Linux)determine if the CPU is too highUse top to see if there is high CPU usageFind a threadSort all threads for processes with high

properties, as follows:private Listprivate ListThese two properties W will be used, the reason is that the above mentioned warning, because I first released the O service, O Service set the two properties, and the W service has not been published, so that hession in deserialization, the detection of Propertyao does not exist, So the warning is given. But does this have anything to do with the high CPU?Havi

Under Linux, the top tool can display the average CPU utilization (USER,NICE,SYSTEM,IDLE,IOWAIT,IRQ,SOFTIRQ,ETC.), which shows the utilization of each CPU. However, this situation may occur when the CPU utilization of each thread cannot be displayed, and the total CPU utilization is

Parallel recovery of large oracle transactions leads to database performance degradation-high cpu usage-processing ideas parallel recovery of large oracle transactions leads to database performance degradation-high cpu usage proce

It is found that the web server is abnormal in the monitoring, and the cpu and load will suddenly increase, and then it will return to normal in 10 minutes. Ssh connection, several php-cgi processes use 100% cpu. At that time, I suspected that some programs were not written, so I informed the development team to check them. As you can see, as the number of visits increases, several web servers found abnorma

see that although the "INDEX PATH" is used, but the following rows_scan is 200000, the data volume of this table is 200000, that is, the full table scan. Later, with the index on the missing Fund_card field added to the YW_ZHZJ table, the database CPU usage dropped to below 5% immediately.Suddenly think of the words I saw before: the database CPU

A solution for high CPU usage Remove virus infection If the computer virus or Trojan in the case, Trojan malicious program is likely to occupy a large number of CPU resources, especially some stubborn virus trojan, has been in the malicious cycle of activity, infection of various types of system files, a large number

From: Http://blog.darkthread.net/blogs/darkthreadtw/archive/2007/03/08/owstimer-exe-causes-a-high-cpu-usage.aspx After installing wss3, the CPU usage of owstimer. EXE process may suddenly increase, while the CPU usage of

, generally recommended xcache.size depending on how much php file, Xcache.count and CPU core number is the same:[Xcache.admin]Xcache.admin.enable_auth = OffXcache.admin.user = "XCache"Xcache.admin.pass = ""[XCache]Xcache.shm_scheme = "Mmap"xcache.size=1024mXcache.count =16Xcache.slots =8kXcache.ttl=0Xcache.gc_interval =0xcache.var_size=16mXcache.var_count =1Xcache.var_slots =8kXcache.var_ttl=0Xcache.var_maxttl=0Xcache.var_gc_interval =300Xcache.test

High Linux cpu usage debugging After the top command is used to debug the program today, the cpu usage of the program is found to be very high and it has been running at 99. This is terrible, so we can debug the program. Use the t