Decreased Memory Usage When The Workload Is Heavy?

Nov 6, 2007

I have a specific job that should be run with a decreased memory usage when the workload is heavy on the SQL Server.
This is a heavy job that has no specific requirement when it comes to response time.
It is important that the rest of the application shouldn’t be affected with longer response time when this job is running. 
How can this job bee handled from the application, without having to create a separate batch job.

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Computing The CPU Usage ,memory Usage For An Inserted Record

Nov 2, 2007




I have a client program that writes to sql server database 10 records per second . i want to compute the CPU usage and the memory usage for the whole program or CPU usage,memory usage for the insert statement in the program .

Can anybody help me with this?


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Mar 26, 2008

Good day to all,
I'm new here, so I don't know if this is the right forum to post my problem. I have a web application written using C# .net 2005 (W/ajax). The application has a module that uploads data from excel file to the sql server 2005 database. w/c is by the way, i'm using SQL 2005 Express Edition, the app can upload up to more than 10,000 records from an excel file. Everything is ok until it was deployed in a test environment, while having a run through with the system, the application encounter an error after which, we cannot log in to the system anymore. I restarted the server (web and sql server in 1 machine running winxp) then I can log-in again in the system. When I'm tracing where the problem came from, I noticed that the memory usage of sqlservr.exe increases everytime the app connects to the server. I already fix some code to close some objects that might have caused the high memory usage, then I run sp_who in the management studio and there are still connections used by the app AWAITING COMMAND. Then I manually kill (using kill spid) connection that are left opened by the application. But the mem usage of sqlservr did no decrease. Is there a way to release the memory usage of sqlservr.exe? In ASP.Net ? I have a hint that this has been causing the error. Thanks a lot.

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Nov 25, 2001

Hi,
it seems that every day SQL Server 2000 has some kind of memory leak,
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Is there any way that I can monitor what is causing the memory usage to be so high and maybe rectify it?

Thanks for the help.

Steve

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Jul 7, 2006

I was on my friend's server earlier and I checked his system stats. Between sqlservr.exe and msftesql.exe he was using 2.9gb of ram. This is not a high traffic server so I felt that was just a wee bit high. What are some usage experiences you have seen? I have not worked with 2005 so I don't know what the usage should be like for a low to medium usage server. The guy that admins the db is kinda a moron anyway. He said he has said to the server admin it has been optimized, but I dont believe it one bit at 2.9gb of usage. Any comments would help.

Pete

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Sep 18, 2007

Hello,

I need to know which of the following two methods do need less RAM.

There are 2 big tables, each about 9 M rows, and 6 small dimension tables with each about 10 to 100 Rows. The dimension tables are joined by their id's with one of the big table.

The Structure of a dimension Table looks like


CarID (tinyint), Description (varchar(20))
1 BMW
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I want to join the 2 Big Tables in a materialized view. Later i will run queries like
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So, back to my question, will such a query take less memory (ram) when i joined all 8 tables before I created the mat. view or will it take less when I only join the 2 big tables in a mat.view and later join the mat.view with the 6 dimension tables?

Hope you got that ;-)

Thank you

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Jan 13, 2004

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Jun 16, 2008

Hello, I have SQL Server 2005 64 bit on Windows Server 2003 Enterprise 64 bit on a server with 8GB of RAM

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Feb 1, 2007

how to check the memory usage other than performance monitor for the server?

When I execute the SP_WHO2 on the server, it showing each user have 5 connections there and the status is sleep. what is that means?

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why have so many connection or entries for the same user, they all are using the same db with same application.

Thanks!

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Dec 11, 2007

I have setup 2 x64 SQL boxes now that are having problems with memory. Both boxes were pretty much setup with the defaults on windows 2003 R2 64 bit server, only changes were file locations etc.

On both servers the memory usage continues to climb over the course of a few days until all physical and virtual memory is used and the server comes to it's knees. A reboot will stabilize it for a few days while the memory usage ramps up again.

The sqlservr.exe process does not report much memory but the commit charge in the performance tab of task manager shows the maxed out value. I thought the sqlservr.exe process only didn't report the correct memory figure when AWE is enabled which it isn't.

I thought as a default, SQL server would dynamically allocate memory as needed and had internal mechanisms that would not use more than the physical ram available. The one server has 16GB and I even set the max SQL memory usage to 12GB but still my total memory usage would get out of hand. SQL Server is the only application on these boxes.

Am I making some incorrect assumptions and need to change the way SQL is setup? Any suggestions?

Thanks
Scott

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Jul 20, 2005

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Jun 13, 2007

Hi All -



We have some CLR sprocs and tvf's we run in a batch job that recently have been getting the out of memory issue. I want to increase the amount of memory allocated to the CLR using the -g startup switch but i want to make an intelligent decision on how much to allocate. What are some of the best ways that you have found to estimate how much to give the CLR?



Thanks,

Cameron

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Mar 14, 2007

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It is SQL 2005 standard SP1 x64
dual intel xeon 5160s
8gb physical memory
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I am just not confident enough to make a solid decision here that this is acceptable. In the beginning of this month I ran some counters for 24hrs to get a feel for the baseline. The average for available memory was about 850mb at that time. So I am wondering if it is going to keep declining and turn into a problem. The server/instance has not been restarted since maybe last November.

thanks

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Does anybody know why BCP on v6.5 grabs so much memory for SQL Server? I have a few table imports where the BCP process will consume over 460MB of RAM during the imports.

The BCP cmd file is executed via an xp_cmdshell call. The server has 2+GB of RAM, but the BCP process effectively flushes large amounts of data from the buffer. It takes quite along time for the cache to recover from this, and after this, the rest of the nightly processes run much slower, as they end up having to hit the drives to retrieve information that should already be in cache.

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May 9, 2003

Hi,

One of the production box running only sql server application, is showing 80% memory usage on the task manager-memory usage history right now.

We are running sql server 2000 standard version-sp3 with 2GB memory on this box. Server is not on the scheduled reboot at this point.

We have seen this behavior for this box last month that after task manager showing 90% memory usage contantly for several days, when server was manually rebooted, memory usage dropped to 35%. Now it's back to 80%.

Our DBA thinks that server should be rebooted on a regular schedule regardless of memory problem. Our network admin doesn't seem to agree with this. He is not ready to reboot the machine even with this high memory usage.

There is no noticable difference performancewise yet.

My questions are:
Is it bad that memory usage reaches from 35% constant to 80-90% or is it common? Should sql server be rebooted immediately to take care of it? Should sql server 2000 rebooted on regular basis regardless of any problems? Shouldn't sql server be releasing memory back to the OS even without rebooting? How do I find out whether server actually is going through memory problems and what is causing it?

Thanks in advance for your opinions,

Shaili

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Sep 25, 2006

hi all

I got a small MSSQL server.. total database file size less than 7GB. with 2G rams installed 2 cpus. but for some reason when i check the task manager process mem usage is over 1.7G. the sql server memory setting in on Dynamically not fixed. and maximum 2G i believe is default. anyway. my question is over 1.7 memory usage is too high? because i dont have alot of transaction going. and cpu usage is very low. wondering if this's normal or not. and if is not normal . what cause the memory usage so high...... and how can i adjust back to normal. ? can anyone help me out? or any suggestion? thanks

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Dec 1, 2004

Hi All,

Currently I have an application that uses SQL 2000. The SQL server service tends to take up as much of the physical memory as possible. The problem is I also have other services relating to this application running that are very important.

What tends to happen after a period of time is SQL takes up all of the physical memory, so that the other services are using the paging file (virtual memory). This causes extremely slow response time over the network as these other services are having to parse the paging file.

Upgrading the memory is currently not an option :(

I know there is an option to set memory usage for SQL but I am unsure how this would respond in a production environment. What would happen if SQL would require more memory than what was allocated to it?

Can SQL release the memory and still act as normal?

Any input would be generously appreciated

Cheers!

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Jan 8, 2004

I am using SQL Server 7.0 on a Windows NT machine. We have been having problems with SQL Server not releasing the memory after it has utilized it.

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With SQL Server 2005, I have the problem that sqlserv.exe keeps using more and more memory. Now I did some research and found the following anwers in different places:

*It seems to be the way that SQL Server works. It just uses all the memory which it can get. I have two remarks about this:
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2) After a few weeks, it consumes so much memory that the whole system (even SQL Server itself) start running very slow. I don't think that's the intended behavior?

So I thought about restricting the maximum memory that SQL Server uses, but people keep saying that's not the way it should be done: SQL Server should be allowed to allocate memory dynamically.

Can anyone help me with my questions?

One other thing that may be of relevance: This instance is a disitributor for replication and the distribution.MDF file also seems to be increasing over time. It became much larger than the application database.

Thanks in advance for replies

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Nov 27, 2006

Hi there group.

Could some please point me in the right direction?

We have a database and it's about 28GB in size, recently the SQL server process that runs uses approximately 1.6GB of Memory.

I have tried running SQL profiler to find out which Stored Procedure is causing this but came up unsuccessful.
When restarting SQL the process it run's at about 50MB for about 20sec and then starts climbing up to 1.6GB of memory usage.

Please assist.

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Feb 21, 2007

I am using a tool to monitor SQL Server and Windows. It is warning me that:

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When locate the process 1004, it shows 15 threads that Elapsed time for all of them is 1d, 3hrs. The Thread state is Waiting and the Thread Wait Reason is "Waiting for an Execution Delay to be resolved".

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Should I take any action? How?

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Feb 27, 2008

Hi to all,

I front a series problem with my SQL Server.
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The problem: after certain actions such as DTS (that takes table
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Hi,

I'm wondering about the memory usage of SQL Server Ce and the Compact Framework.

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1. Does that means, I can only use for my application:
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3. Means big databases big memory usage in my process memory?


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Hi all,
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