Swaroop Katargunde
asked on
Performance issue on Windows server 2008 R2
Hi,
I have an windows server 2008 Std R2, & facing performance issue with it.
Here are the details of Physical memory usages
Total :- 16355
Cached :- 13389
Available :- 13521
Free :- 0
Physical memory :- 18 %
while monitoring the memory usage, found that cached memory get increased & free memory becomes 0
I have an windows server 2008 Std R2, & facing performance issue with it.
Here are the details of Physical memory usages
Total :- 16355
Cached :- 13389
Available :- 13521
Free :- 0
Physical memory :- 18 %
while monitoring the memory usage, found that cached memory get increased & free memory becomes 0
What board, CPU and how much RAM is installed?
ASKER
Trendmicro office scan server, Yosemite Server Backup software & file server is installed on the machine.
RAM:- 16 GB, from which 20% is used.
Processor:- Intel(R) Xeon(R) CPU E5-2420 v2 @ 2.20 GHz from which 16% is used.
Max Memory uses :-
iCRService.exe *32 is running :- 616,380 k
Ytwinsdr.exe:- 173,628
RAM:- 16 GB, from which 20% is used.
Processor:- Intel(R) Xeon(R) CPU E5-2420 v2 @ 2.20 GHz from which 16% is used.
Max Memory uses :-
iCRService.exe *32 is running :- 616,380 k
Ytwinsdr.exe:- 173,628
ASKER
Attached the snap shot.
Memory.jpg
Memory.jpg
That's the intended and expected behaviour. If the system runs in a stable state, all memory but some MB should be allocated by processes or the cache. Only used memory is good memory ;-).
ASKER
Now this is stable after restarting the server, but when issue comes, free memory becomes 0 & cached memory increased.
Are you running the latest version of the TrendMicro software?
The task manager looks quiet in the image. Be aware when running a server as a File Server, the OS will attempt to use as much RAM as it can to cache file access. According to the original post, you have 13GB RAM available for use. Having 0 free RAM just means that at some point in time, data was stored across all RAM in the server.
The important number to look at is what RAM is Available. Both Available & Free RAM can be used immediately by programs that request RAM. Free RAM just means that nothing has ever been written to that RAM. Available means it has been used, may contain data but it can be immediately used by running programs, when necessary.
This is not an unusual situation on servers.
Good explanation of memory counters: http://brandonlive.com/2010/02/21/measuring-memory-usage-in-windows-7/
Now when you say a performance issue, are there any apparently problems accessing files? Are users reporting slowness on Shares? Are your backups taking longer than normal?
Dan
The task manager looks quiet in the image. Be aware when running a server as a File Server, the OS will attempt to use as much RAM as it can to cache file access. According to the original post, you have 13GB RAM available for use. Having 0 free RAM just means that at some point in time, data was stored across all RAM in the server.
The important number to look at is what RAM is Available. Both Available & Free RAM can be used immediately by programs that request RAM. Free RAM just means that nothing has ever been written to that RAM. Available means it has been used, may contain data but it can be immediately used by running programs, when necessary.
This is not an unusual situation on servers.
Good explanation of memory counters: http://brandonlive.com/2010/02/21/measuring-memory-usage-in-windows-7/
Now when you say a performance issue, are there any apparently problems accessing files? Are users reporting slowness on Shares? Are your backups taking longer than normal?
Dan
Cached RAM increasing is directly due to the server being used as a file server.
Dan
Dan
ASKER
Are you running the latest version of the Trend Micro software? -------Yes
Now when you say a performance issue, are there any apparently problems accessing files? -------Yes
Are users reporting slowness on Shares? ------Yes
Are your backups taking longer than normal? -----It takes normal time.
Now when you say a performance issue, are there any apparently problems accessing files? -------Yes
Are users reporting slowness on Shares? ------Yes
Are your backups taking longer than normal? -----It takes normal time.
I would review the configuration of the Trend Micro Officescanner software. Have you enabled Smart Scan or are you using the typical periodic/manual scan of the system? Have you read thru the excluded file list:
Reference link: http://esupport.trendmicro.com/solution/en-us/1059770.aspx?referral=1059795
Dan
Reference link: http://esupport.trendmicro.com/solution/en-us/1059770.aspx?referral=1059795
Dan
Have you used the Performance Tuner in OfficeScanner?
link: http://esupport.trendmicro.com/solution/en-us/0127011.aspx
link: http://esupport.trendmicro.com/solution/en-us/0127011.aspx
ASKER
Now I have done the below changes
1. Real scan on trend micro server is disabled & also added the exclusion as per the Reference link: http://esupport.trendmicro.com/solution/en-us/1059770.aspx?referral=1059795
2. Enabled the Performance Tuner in OfficeScanner
Attached latest snapshot
10.10.1.202.jpg
1. Real scan on trend micro server is disabled & also added the exclusion as per the Reference link: http://esupport.trendmicro.com/solution/en-us/1059770.aspx?referral=1059795
2. Enabled the Performance Tuner in OfficeScanner
Attached latest snapshot
10.10.1.202.jpg
ASKER
Attached the latest
10.10.1.202.jpg
10.10.1.202.jpg
OK, looks good. What are the top 5 RAM consuming processes (from the processes tab)?
Can you Show the following columns in the Processes tab:
1. image name
2. PID
3. username
4. CPU
5. CPU Time
6. Working Set (Memory)
7. Memory (Private Working Set)
8. Handles
9. Threads
Dan
Can you Show the following columns in the Processes tab:
1. image name
2. PID
3. username
4. CPU
5. CPU Time
6. Working Set (Memory)
7. Memory (Private Working Set)
8. Handles
9. Threads
Dan
ASKER
As requested, i have attached the snap shot
New10.jpg
New10.jpg
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
When you open task manager, select the Processes tab, and sort by Memory, what process(es) is/are consuming the most RAM? Can you post a image of Task Manager?
Dan