iis worker process high cpu usage

Recently, a timestamp system was written to record some important time nodes of each module in the system. Getting the kernel escalation timestamp is through the process polling, but found that the process in the actual running CPU utilization is very high, which is a dead loop in reading the device files, this thought

Background: Performance monitoring shows that the CPU usage of a single core of the online server has reached 100%, which is caused by one of our core services. Thanks to the fact that our service processes are undertaken by multiple identical worker (thread) scheduling tasks, in addition to the high

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 think many of my friends will find that their mysql occupies a large amount of internal and cpu resources. To solve this problem, most of us will directly reduce the number of mysql accesses and connections and directly generate static or cache files, below I have more ways to solve mysql's high CPU and memory usage.

Cases of high CPU usage and memory usage in MySQL Faults:At about seven o'clock, I received a complaint from the playback center that the video was playing slowly and could not be loaded for a long time. At first, he thought it was the tomcat service that went down again. View the output logs of catalina. out on the to

(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

, especially when new custom types are added, all consumers are upgraded as much as possible, but when the consuming side is too high, the scenario is too expensive and unfriendly Improved serializerfactory, caching of reflection failures and avoidance of repeated reflections Issue for Dubbo, but it's not going to work out. ConclusionHession The default deserialization implementation satisfies the following 2-point condition, which result

ManagementObjectSearcher (objquery);DateTime firstsample = datetime.minvalue, secondsample = Datetime.minvalue; Double processorusage;Double mspassed;ULONG u_oldcpu = 0;while (true){var gets = Mosearcher.get ();foreach (ManagementObject mobj in gets){Try{if (firstsample = = Datetime.minvalue){Firstsample = DateTime.Now;Mobj.get ();U_OLDCPU = (ULONG) mobj["Usermodetime"] + (ULONG) mobj["Kernelmodetime"];}Else{Secondsample = DateTime.Now;Mobj.get ();ULONG U_NEWCPU = (ULONG) mobj["Usermodetime"] +

Symptoms: When the machine is debugging or allows IIS, the service is interrupted due to exceptions (such as power failure), and when the IIS runs the page again, the CPU resource usage is 100%. It is invalid even if it is restarted. Cause analysis: When an interruption occurs,