%>
Free malicious ASP program causes CPU 100%, how to find out which Web site?
Do we directly inform customers that XXX site has problems, causing the server stability, we want to close the Web site?
Shutting down a web site means rejecting a customer and expecting the customer to renew it? Try to help the customer find a problematic URL or ASP file
Open the application pool analytics software,
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 2007.07.09: I wrote another article about the sp
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 2007.07.09: I wrote another article about the sp
system into multiple nodes, each node's processor can only access its own local resources, is a completely unshared architecture. Data exchange between nodes requires software implementation. Its advantage is that scalability is very good, the disadvantage is that data exchange difficulties with each other, the need to control a lot of software work to achieve communication and task allocation, scheduling, for the general enterprise applications is too complex, inefficient.
NUMA (non-uniform
Label:Problem Description: Project feedback The response of one of the server business operations to the application payload is very slow, and logging on to the server finds that the W3WP process CPU continues to exceed 90%, even during low peak business periods. Remote view found that the application server hosting th
In the afternoon, a friend on MSN sent a dump file, saying that the CPU usage of the Web server is at 100%. The problem could not be found. Let's take a look, let's upload the dump file and find out where the problem is.
Framework2.0 is a 2 k Windows OS.
After loading the dump file, load the SOS extension debugging module of Version 2.0:
. Load c: \ windows \ Microsoft. NET \ framework \ v2.0.50727 \ SOS. d
different architectures CPU Migration VMSfrom Intel I7 3370CPU the physical host will all VMS Migrating to Inter Xeon e5-2640 CPUcannot select after migration is complete -aCPUonly Select4One (reason: windows2k8 DC Hyper-Vsingle virtual machine logicCPUquantity is4a), but you can displayInterxeon e5-2640Be sure to update the integration service once the migration is completeHyper-V VMS the export and import
of a server under Linux You can see the details of each CPU in the/proc/cpuinfo under 1,linux. But for a dual-core CPU, you will see two CPUs in the Cpuinfo. It is often mistaken for a two single-core CPU. In fact, Physicalprocessorid should be adopted to differentiate between mono-and dual-core. and Physicalprocessori
Tags:. sql BSP Logical str style BST cas wait tabAnnotated Source:http://www.cnblogs.com/xunziji/archive/2011/07/27/2118063.html --Begin CPU analysis optimized for related SQL
--Use the DMV to analyze the statements in which SQL Server has accumulated the most CPU resources since it was started. For example, the following statement can
Recently and colleagues to deal with a small program, the data volume is not particularly large, a table of data records: 7000W records around, but from the change to execute a query, but found that the query is not fast, and the most obvious problem is cpu100%.SQL statements:Select from where LNG> and LNG and lat> and LatMax_lat;To find the problem, use the following statement to see if the database has a lock presence: --To View the locked table: Selectrequest_session_id asspidobject_name(
SQL Server CPU performance check and optimization related SQL statements, very good SQL statements, recorded here:
-- Begin SQL related to CPU Analysis and Optimization -- use DMV to analyze statements that have used the most CPU resources since SQL Server was started. For
immediately drops down and swings between the 50%~70%.
Call show Prosslist again, and site A's SQL calls rarely appear in the results list. However, it was found that the host ran several Discuz forum programs, and several tables of the Discuz forum also had this problem. So smoothly together to solve, CPU occupancy down again. (2007.07.09 Note : About the Discuz forum specific optimization process, I lat
include:Xp_regaddmultistringXp_regdeletekeyXp_regdeletevalueXp_regenumvaluesXp_regremovemultistringNote: I used to list xp_regread/xp_regwrite here. However, the removal of these programs affects the installation of some main functions including logs and SP, so their removal is not recommended.9. Remove other system storage processes that you think pose a threat. Such processes are quite large, and they also waste some
Original: Initial SQL Server performance issue (4/4): List the most resource-consuming sessionsIn the last 3 articles, we discussed a list of different queries that reflect the current state of the server.
Initial SQL Server performance issues (1/4):
In the last 3 articles, we discussed a list of different queries that reflect the current state of the server.
Initial SQL Server performance issues (1/4): Server overview
Initial SQL Server performance issues (2/4): List
improve work efficiency and standardize business configuration and operations.
The hardware information of each server has been recorded manually. You can write and capture the information everywhere through scripts or automated tools. This article mainly uses saltstack as a tool, then, use the provided APi to compile the required Python script ~~
The requirements are as follows: Generate server host name,
above warning) These include:
Xp_regaddmultistring
Xp_regdeletekey
Xp_regdeletevalue
Xp_regenumvalues
Xp_regremovemultistring
Note: I used to list xp_regread/xp_regwrite here, but the removal of these programs affects some of the main features including logging and SP installation, so their removal is not recommended.
9. Remove other system storage processes that you believe will pose a threat. This process is quite large, and they also waste some
.
8. Disable registry accessors that you do not need. (with the above warning) These include:
Xp_regaddmultistring
Xp_regdeletekey
Xp_regdeletevalue
Xp_regenumvalues
Xp_regremovemultistring
Note: I used to list xp_regread/xp_regwrite here, but the removal of these programs affects some of the main features including logging and SP installation, so their removal is not recommended.
9. Remove other system storage processes that you believe w
to list xp_regread/xp_regwrite here. However, the removal of these programs affects the installation of some main functions including logs and SP, so their removal is not recommended.
9. Remove other system storage processes that you think pose a threat. Such processes are quite large, and they also waste some CPU time. Be careful not to do this on a configured server
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.