| Author |
Message |
Brandon Baker
Guest
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 Posted:
Fri Sep 30, 2005 8:50 pm Post subject:
High CPU Performance Problem |
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Problem:
System process is pegged between 80% and 95% during peak times causing the
users to experience lag when working with files. During off-peak hours the
CPU utilization for the System process drops to 1% and 5%, or what I would
consider normal. Process Viewer (www.sysinternals.com) shows 384K memory
usage, 2 million page faults, and 147 threads for the system process. Of the
147 threads, about 50 are each consuming 1%-5% while calling the srv.sys file
for various I/O operations. McAfee VSE8.0i Antivirus and non-essential Compaq
monitoring services have been disabled, but this has not solved the
performance issues.
Has anyone else run into this high-cpu situation?
Environment:
Windows 2003 Active Directory domains
Cluster hosts file server resources only.
2-Node File Server Cluster
HP EVA 5000 SAN
HP DL380 G4 servers using Emulex HBA's for a 2 GB connection to SAN.
Windows 2003 Enterprise (NO SP1 yet)
3000 Shares (2850 shares created using secret sub-directory auto-shares)
1 TB Data over three physical disks
1 Cluster Group with 35 file share resources (many use the secret share
sub-directory option for home folders) |
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TheDamon
Guest
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| Posted:
Sat Oct 01, 2005 12:50 am Post subject:
Re: High CPU Performance Problem |
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It looks like a performance problem ! To build a little picture
about your environment, tell if you had determine any event IDs in your
system event log with numbers like 2019,2020,2021,2022? Which version
of Server Service (srv.sys) is installed on your system?
The paging process shows us a mem problem. But which kind of memory is
mean with 384k? Is it paged pool or non paged pool memory? Could you
verify it?
More Information about my idea in following kb articles:
Event 2020 is logged and your Windows Server 2003-based file server
stops responding (886670)
http://support.microsoft.com/default.aspx?scid=KB;EN-US;886670
Slow performance when Windows Server 2003 writes data to a
fiber-channel-connected file share (840516)
http://support.microsoft.com/default.aspx?scid=KB;EN-US;840516
By the way: If you had EMC Lightpulse series 8xxx or 9xxx as HBAs
install SP1 and enjoy your bluescreen on reboot ! Fact: EMC had
released a webside, that their HBA drivers are not SP1 aware. So be
carefully.
Greetz
Damon |
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Brandon Baker
Guest
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| Posted:
Sat Oct 01, 2005 12:50 am Post subject:
Re: High CPU Performance Problem |
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I will post the answers tomorrow when I have scheduled time to work on the
cluster. I appreciate you assitance TheDamon!!
"TheDamon" wrote:
| Quote: | It looks like a performance problem ! To build a little picture
about your environment, tell if you had determine any event IDs in your
system event log with numbers like 2019,2020,2021,2022? Which version
of Server Service (srv.sys) is installed on your system?
The paging process shows us a mem problem. But which kind of memory is
mean with 384k? Is it paged pool or non paged pool memory? Could you
verify it?
More Information about my idea in following kb articles:
Event 2020 is logged and your Windows Server 2003-based file server
stops responding (886670)
http://support.microsoft.com/default.aspx?scid=KB;EN-US;886670
Slow performance when Windows Server 2003 writes data to a
fiber-channel-connected file share (840516)
http://support.microsoft.com/default.aspx?scid=KB;EN-US;840516
By the way: If you had EMC Lightpulse series 8xxx or 9xxx as HBAs
install SP1 and enjoy your bluescreen on reboot ! Fact: EMC had
released a webside, that their HBA drivers are not SP1 aware. So be
carefully.
Greetz
Damon
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Brandon Baker
Guest
|
| Posted:
Mon Oct 03, 2005 4:50 pm Post subject:
Re: High CPU Performance Problem |
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|
We've got 4 GB of RAM in the server, and only 400-500 MB are being used. I'm
going to check out the cache settings per the link, but I"m really sick
today, so I don't expect to move forward on this issue until tomorrow.
"Rodney R. Fournier [MVP]" wrote:
| Quote: | So this is a file server cluster? Have you read this
http://www.microsoft.com/resources/documentation/Windows/2000/server/reskit/en-us/Default.asp?url=/resources/documentation/Windows/2000/server/reskit/en-us/core/fnec_evl_acks.asp
yet?
Make sure you are following it. Lastly, without knowing all the facts, it
sounds like you need to add more RAM to the system.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering Website
http://www.msmvps.com/clustering - Blog
http://www.clusterhelp.com - Cluster Training
"Brandon Baker" <BrandonBaker@discussions.microsoft.com> wrote in message
news:460B06C0-4F98-47FF-B5A6-FE1E39978902@microsoft.com...
Problem:
System process is pegged between 80% and 95% during peak times causing the
users to experience lag when working with files. During off-peak hours the
CPU utilization for the System process drops to 1% and 5%, or what I would
consider normal. Process Viewer (www.sysinternals.com) shows 384K memory
usage, 2 million page faults, and 147 threads for the system process. Of
the
147 threads, about 50 are each consuming 1%-5% while calling the srv.sys
file
for various I/O operations. McAfee VSE8.0i Antivirus and non-essential
Compaq
monitoring services have been disabled, but this has not solved the
performance issues.
Has anyone else run into this high-cpu situation?
Environment:
Windows 2003 Active Directory domains
Cluster hosts file server resources only.
2-Node File Server Cluster
HP EVA 5000 SAN
HP DL380 G4 servers using Emulex HBA's for a 2 GB connection to SAN.
Windows 2003 Enterprise (NO SP1 yet)
3000 Shares (2850 shares created using secret sub-directory auto-shares)
1 TB Data over three physical disks
1 Cluster Group with 35 file share resources (many use the secret share
sub-directory option for home folders)
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Brandon Baker
Guest
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| Posted:
Mon Oct 03, 2005 4:50 pm Post subject:
RE: High CPU Performance Problem |
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I checked the file server, and the cache is setup for maximum throughput for
file sharing. We are using HP nic teaming connected to a Cisco 6513 switch. I
believe the issue stems from the number of share, but our old file server
(non-clustered) had just as may shares, but zero performance issues, and it
was a G3 - 1.8 Ghz/2GB RAM.
The problem doesn't make sense to me - I have thrown the best hardware I
have at it, plenty of cpu and RAM, nice HP San, and 2 Gbps connection, and
it's the system process that's hammereded.
When I perform a process viewer examination of the system process - there
are 40-50 threads running srv.sys.
I'm working to remove the majority of the automatic home folder shares as we
decommission Windows 98 and the need for users to map directly to their home
folder (\\server\hfshare$) vs. my 2000/XP clients that can map to
\\server\share\folder.
"Brandon Baker" wrote:
| Quote: | Problem:
System process is pegged between 80% and 95% during peak times causing the
users to experience lag when working with files. During off-peak hours the
CPU utilization for the System process drops to 1% and 5%, or what I would
consider normal. Process Viewer (www.sysinternals.com) shows 384K memory
usage, 2 million page faults, and 147 threads for the system process. Of the
147 threads, about 50 are each consuming 1%-5% while calling the srv.sys file
for various I/O operations. McAfee VSE8.0i Antivirus and non-essential Compaq
monitoring services have been disabled, but this has not solved the
performance issues.
Has anyone else run into this high-cpu situation?
Environment:
Windows 2003 Active Directory domains
Cluster hosts file server resources only.
2-Node File Server Cluster
HP EVA 5000 SAN
HP DL380 G4 servers using Emulex HBA's for a 2 GB connection to SAN.
Windows 2003 Enterprise (NO SP1 yet)
3000 Shares (2850 shares created using secret sub-directory auto-shares)
1 TB Data over three physical disks
1 Cluster Group with 35 file share resources (many use the secret share
sub-directory option for home folders)
|
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| Back to top |
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Rodney R. Fournier [MVP]
Guest
|
| Posted:
Mon Oct 03, 2005 4:50 pm Post subject:
Re: High CPU Performance Problem |
|
|
So this is a file server cluster? Have you read this
http://www.microsoft.com/resources/documentation/Windows/2000/server/reskit/en-us/Default.asp?url=/resources/documentation/Windows/2000/server/reskit/en-us/core/fnec_evl_acks.asp
yet?
Make sure you are following it. Lastly, without knowing all the facts, it
sounds like you need to add more RAM to the system.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering Website
http://www.msmvps.com/clustering - Blog
http://www.clusterhelp.com - Cluster Training
"Brandon Baker" <BrandonBaker@discussions.microsoft.com> wrote in message
news:460B06C0-4F98-47FF-B5A6-FE1E39978902@microsoft.com...
| Quote: | Problem:
System process is pegged between 80% and 95% during peak times causing the
users to experience lag when working with files. During off-peak hours the
CPU utilization for the System process drops to 1% and 5%, or what I would
consider normal. Process Viewer (www.sysinternals.com) shows 384K memory
usage, 2 million page faults, and 147 threads for the system process. Of
the
147 threads, about 50 are each consuming 1%-5% while calling the srv.sys
file
for various I/O operations. McAfee VSE8.0i Antivirus and non-essential
Compaq
monitoring services have been disabled, but this has not solved the
performance issues.
Has anyone else run into this high-cpu situation?
Environment:
Windows 2003 Active Directory domains
Cluster hosts file server resources only.
2-Node File Server Cluster
HP EVA 5000 SAN
HP DL380 G4 servers using Emulex HBA's for a 2 GB connection to SAN.
Windows 2003 Enterprise (NO SP1 yet)
3000 Shares (2850 shares created using secret sub-directory auto-shares)
1 TB Data over three physical disks
1 Cluster Group with 35 file share resources (many use the secret share
sub-directory option for home folders)
|
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ronald.mertens
Guest
|
| Posted:
Mon Oct 31, 2005 1:50 am Post subject:
Re: High CPU Performance Problem |
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Hi Brandon,
Have you already found a solution? One thing I've found is that yo
must set the networking settings to "maximize for file sharing".
The earliest messages about this problem date from NT4.0 It seems tha
they are still around.
Another message reports problems with SRV.SYS (memory leakage)
Grtz,
Ronal
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