SQL Server Page File Usage;
Jun 22, 2007
Hi all,
We have our SQL Server 2005 installed in a server with below specifications.
MS Windows Server 2003 R2
Standard x64 Edition
Service Pack 2
Intel(R)Xeon(R)CPU
5160 @ 3.00GHz
3.00 GHz, 8.00 GB of RAM
The issue is ,
When a query window is opened and a procedure is executed or a DBCC command is executed , the PF usage keeps on increasing and reaches the maximum 8.81 GB and remains there forever even if the query is stopped and the session is closed.
The CPU usage also shoots up and stays between 90 - 100 %.
Now, it is not possible to open a new query or do any operation in the SQL server and a Timeout Expired error is thrown.
My questions are ,
1. Is that good for the SQL server to occupy the total RAM ?
2. Is the performance related to the RAM space occupied by SQL server ?
3. What should we do in order free the PF usage after the a process is complete ?
4. Have anyone faced similar scenario ? Any solutions ?
Thanks for your time & any help should be apprecitated.
DBLearner
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Jun 17, 2007
Hi,
I have SQL Server 2005 running on Windows Server 2003 Standard Edition SP2.
The server has 3GB of physical memory and its PF size is fixed with a 2GB min and 4 GB max.
This server has only 1 database with maybe a max of about 10 concurrent db connections.
Everytime after a reboot or databse restart, the PF usage slowly grows and grows until the server locks up. It appears as though the server is not releasing the RAM after is uses it...
For example, right now, it is early in the morning and there is only 1 db connection but the PF usage is sitting at 1.87GB and slowly growing.
Has anyone ever had this issue before or does someone know how I can resolve this issue?
I would appreciate any help
Cheers
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May 3, 2007
Just built a new DB server. Using SQL2K5Standard 64bit on W2K3Server 64bit. Hardware includes 16GBs memory/dual 4-core procs and many spindles, however we only have a 2GB page file on C:. SQL is set to to usa a maximum of 12GB memory which is way more than it should need. Problem is, we are occasionally seeing very high page file usage. If Task Manager is correct, (which it really can't) I am using 10 and 13.8GB (as listed in PF Usage) But I only have a 2GB page file! Occasionally when simply copying a file from one partition to another, PerfMon shows Pages/sec jump to 10,000. Also see some very high Disk Queueing.This system isn't even in production yet. My main questions are two: 1) some documentation says with SQL2K5-64 bit running on W2K3-64bit I may not even need a page file. Is this correct? 2) What would be causing high usage of the swap file with 16GBs of installed memory? And help would be appreciated. Thanks in advance!
MikeE
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Jul 31, 2015
I'm looking for monitoring page file usage for SQL Server. Ultimately, I'm trying to prove that there is not a problem with a server and that it is not struggling with the workload, but someone has looked at page file usage and suggested there is a problem.
I've set up performance counters running from a separate server, but the counters relating to page file usage seem wildly inaccurate. E.g., I've got (_Total\% Usage), and (Total)\%Usage Peak), with Total Usage showing a constant value of 64, and the peak showing 92. I've also got Process (sqlservr)Page File Bytes and Page File Bytes Peak, which are showing values like 61,275,688,960 and hardly dropping below this.
If I look at Performance Monitor directly the values shown in here correlate with this, as shown in my first screenshot. However, if I look at resource monitor and look at disk activity, you can see that there is basically nothing going on (screenshot 2).
The server is more than equipped to deal with the workload, and looking at other counters for SQL there is no indication of problems, e.g. page life expectancy has a minimum value showing of 576,258, there is never less than 6GB of free RAM, SQL compilations are at a maximum of 5% of batch requests.
It is a physical server with 2x 8 core multi threaded CPUs, 64GB RAM with 58GB as the SQL server maximum. Hopefully this is enough info, but I'm happy to check anything else.
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Hi,
I logged some of the parameters of my SQL server using the Performance monitor into a log file - smn5.log & the log settings in smn5.pml. I started the log and the log file (smn5.log) started growing in size indicating that it was collecting data.
I then went to Options button and said Save. After this in the File menu, I selected Export Log and saved it in a .CSV file, expecting it to contain the Logged data. However, it contains only the Log settings as shown below :
--------------------------------
Reported on L&T1362
Log File C:MSSQLLOGsmn5
Interval: 15.000 seconds
Object,Computer
SQLServer-Log,ERMINTRUDE
SQLServer-Procedure Cache,ERMINTRUDE
SQLServer-Locks,ERMINTRUDE
SQLServer,ERMINTRUDE
SQLServer-Log,FLORENCE
SQLServer-Procedure Cache,FLORENCE
SQLServer-Locks,FLORENCE
SQLServer,FLORENCE
---------------------------------
Could some one please tell me how to gather and view the logged information ? smn5.log contains 10MB of data - the perf. monitor shows that.
Thanks
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Hello Guys,
I need some help on a couple of issues, please.
We have a dedicated SQL W2003 SQL 2005 box with 32GB of RAM. Pagefile is set to 4GB, verified under System Properties. Under data loads, use of the system, etc, PF Usage goes up to 30GB. After the load is done, PF Usage goes to 28GB, not any lower. sqlserver.exe process is taking about 25GB of Mem Usage and VM Size.
First question is how come PF Usage shows 30GB, and maximum set under system properties is 4GB?
Also, would setting the page file to 1.5 X RAM (48GB) improve the system performance?
PF Usage is definitely extemely high, so do you have any recommendations on how to attack this problem?
I would appreciate any suggestions you may have. Thank you!
I am a developer, not an admin, so I am just trying to get some educated seggestions to the management and the DBA on how to improve the performance of the box.
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Hi,
like subject, is it possible?
bye
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