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Diagnosing NTFS slowdowns when writing beyond EOF

February 27, 2015, 3:49 pm
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On some of my systems, writing beyond the EOF results in significant slowdowns (10x), whereas some other systems are unaffected. I am trying to find out what causes this behavior (using procmon, perfmon), but am having a hard time doing so. The NTFS settings I have found so far in perfmon with a default system diagnosis seem to be equal. How would I go about finding out what the difference in configuration is between these systems?

So far, I know that it only affects NTFS filesystems, and not FAT32. It does not matter what the type of the drive is, e.g. SSD drive, usb stick, or even a RAM disk. If a system is affected, all NTFS partitions perform worse for beyond-EOF writes. It is probably some simple setting that is different, but I have not found it yet.

(I would include my test results and source code of test programs, but there seems to be no way to let these be collapsed by default. I am afraid they would therefore only clutter this post/topic, but if there is a way of sharing them properly I will happily do so!)

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AppVerifier Version 4.1 Download Link

March 2, 2015, 3:50 am
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I am seeing AppVerifier 4.0.665 on the MSDN official download page released in 2009. Its high time we have another version and I do see mention of AppVerifier 4.1.1078 64 in various blogs but could not find the download link at microsoft. Can someone please guide me to the AppVerifier 4.1 version for Windows 7 64 bit.
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Windows 7, Create System Restore Point Failed

March 2, 2015, 3:40 pm
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Hi i am using windows 7 on an older computer, I recently discovered that i can not create a System Restore Point, I get an error your volume of a shadow copy has timed out. Its error code (0x81000101) i have searched the internet for days only to find that all attempts to fix this issue has always came to the same ending, (FAIL) i would really like to set this system restore point back up if anyone has any clue about what im doing wrong or not seeing, If you feel your smart enough to fix it please be my guest. I have had all i can take. On another forum everyone has came to a quite mode im assuming. they stopped replying to me. But i will try anything once and take any info you can give me. look forward to talking with you all. thanks in advance
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Sysinternals ProcDump Question

November 6, 2014, 9:42 am
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I'm working on a Quickbooks issue and I require a little assistance. "Nearly" everytime the user attempts to print through Quickbooks it crashes. Everything else on this machine is running fine. I ran procdump 6 times while trying to print from different areas and consistently receive this output:

ProcDump v7.1 - Writes process dump files
Copyright (C) 2009-2014 Mark Russinovich
Sysinternals - www.sysinternals.com
With contributions from Andrew Richards

Waiting for process named qbw32.exe...

Process:               QBW32.EXE (8616)
CPU threshold:         n/a
Performance counter:   n/a
Commit threshold:      n/a
Threshold seconds:     10
Hung window check:     Disabled
Log debug strings:     Disabled
Exception monitor:     Unhandled
Exception filter:      *
Terminate monitor:     Disabled
Cloning type:          Disabled
Concurrent limit:      n/a
Avoid outage:          n/a
Number of dumps:       1
Dump folder:           C:\Andy's tools\
Dump filename/mask:    PROCESSNAME_YYMMDD_HHMMSS


Press Ctrl-C to end monitoring without terminating the process.

CLR Version: v4.0.30319

[11:29:32] Exception: E0434F4D.System.IO.FileNotFoundException ("Could not find file 'C:\ProgramData\Intuit\QuickBooks Enterprise Solutions 15.0\Components\messages\TrackingUploaderConfig.xml'.")
[11:29:39] Exception: E0434F4D.System.IO.FileNotFoundException ("Could not load file or assembly 'LeftNavigationPane.XmlSerializers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=8244b228ecdaef5e' or one of its dependencies. The system cannot find the file specified.")
[11:29:39] Exception: E0434F4D.System.IO.FileNotFoundException ("Could not find file 'C:\ProgramData\Intuit\QuickBooks Enterprise Solutions 15.0\Components\messages\QBAccessPointsConfig.mcm'.")
[11:29:39] Exception: E0434F4D.System.Exception ("EventUploaderContext is not initialized")
[11:29:40] Exception: E0434F4D.System.IO.FileNotFoundException ("Could not find file 'C:\ProgramData\Intuit\QuickBooks Enterprise Solutions 15.0\components\messages\FactsEngineConfig.xml'.")
[11:29:40] Exception: E0434F4D.System.Reflection.TargetInvocationException ("Exception has been thrown by the target of an invocation.")
[11:29:41] Exception: E0434F4D.System.Exception ("LibraryContext is not initialized")
[11:30:02] Exception: E0434F4D.System.AccessViolationException ("Attempted to read or write protected memory. This is often an indication that other memory is corrupt.")
[11:30:02] The process has exited.
[11:30:02] Dump count not reached.

What is the general feeling on something like this? I have already posted on the Quickbooks message board, but for some reason I think this message board will be of more help.

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Not able to extract performance data from .ETL file using xperf commands. getting error "Events were lost in this trace. Data may be unreliable ..."

November 11, 2014, 7:52 am
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Not able to extract  performance data from .ETL file using xperf commands.

Xperf Commands:

xperf –i C:\TempFolder\Test.etl -o C:\TempFolder\BootData.csv  –a process

Getting following error after executing above command:

"33288636Events were lost inthis trace. Data may be unreliable
.
               Thisis usually caused by insufficient disk bandwidth for ETW logging.
               Pleasetry increasing the minimumand maximum number of buffers and/or
                the buffer size. Doubling these values would be a good first attempt.
               Please note, though, thatthis action increases the amount of memory
                reservedfor ETW buffers, increasing memory pressure on your scenario.
               See"xperf -help start"for the associated command line options."

I changed page size file but its does not work for me.

I am using windows performance recorder(WPRUI.exe) to collect performance log(.ETL file).

Any one have idea, how to solve this problem and extract ETL file data.

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A problem with subtitles in windows media player

March 3, 2015, 1:20 pm
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Hello, I have a old problem with Windows Media Player. In Windows 7 Windows Media Playernot accept subtitles and I download other program. Now i update my windows in 8.1 Pro. Andthat problem aren't fix. Sorry for my English... What can i do for my Windows Media Player read subtitles?
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Restore Last Session - Microsoft Windows

March 4, 2015, 3:40 am
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Hi,

Like in Google Chrome -> Restore previous session where it is closed option. why don't you add a button like shut-down or sleep in windows, just to restore the system where it is closed with the previous state. 

i.e,

I need to shutdown my computer by the end of my office work. But when I ON it for the next day, like Google Chrome it need to view all the folders and files which are in open state while shut-downing. For that it should not forcibly close the open folders and files while shutting-down. It need to keep it in memory and open for the next day.  

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Retrieve raw captured data after report generation crash

March 4, 2015, 4:33 am
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Hi everyone

Yesterday we were performing load tests on a server. During which I created and I scheduled a User defined data collector set based on the system performance collector set. The data capture ran for 2 hours. It then proceeded with the process of generating the report. During this process I observed the Tracerpt.exe was slowly and consistently consumed memory. The generate report process was taking a while, so I came back to it 15 minutes later, to discover the process has ended, but no report could be found. 

I'm assuming the process crashed.

Is there a way to retrieve the raw capture data and attempt to regenerate a report? Where is the raw data temporarily stored?

Is there any why to retrieve the missing information?

Any help is appreciated.

Ernie Prescott

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Not able to extract performance data from .ETL file using xperf commands. getting error "Events were lost in this trace. Data may be unreliable ..."

November 11, 2014, 7:52 am
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Not able to extract  performance data from .ETL file using xperf commands.

Xperf Commands:

xperf –i C:\TempFolder\Test.etl -o C:\TempFolder\BootData.csv  –a process

Getting following error after executing above command:

"33288636Events were lost inthis trace. Data may be unreliable
.
               Thisis usually caused by insufficient disk bandwidth for ETW logging.
               Pleasetry increasing the minimumand maximum number of buffers and/or
                the buffer size. Doubling these values would be a good first attempt.
               Please note, though, thatthis action increases the amount of memory
                reservedfor ETW buffers, increasing memory pressure on your scenario.
               See"xperf -help start"for the associated command line options."

I changed page size file but its does not work for me.

I am using windows performance recorder(WPRUI.exe) to collect performance log(.ETL file).

Any one have idea, how to solve this problem and extract ETL file data.

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perfmon.msc gaps in data following automated log rolls

March 5, 2015, 3:22 am
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Hi all,

We've been using Performance Monitor to generate statistics on our servers for use in investigating issues and monitoring general server performance, using per-second recording. We've noticed however that a number of servers, usually a small handful, aren't rolling their logs properly. There will end up being ~50 second stops between log rolls (not consistently, but at least 10 times a day), leaving gaps in our data.

I can't see any legitimate reason for this to be occurring -- we have other hosts with exactly the same setup where this issue does not occur.

The main culprits are Server 2003 R2 4-core VMs (upgrade to 2008 coming before EOL) and are currently passive standbys, so they're not even being hitting any limits on CPU or memory, which you might expect if there were gaps in the middle of perflogs, but these are in between rolls.

I can't see any documentation or other users having a similar issue online, so any help or insight would be really appreciated.

Regards,

Alex

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I have to deploy Certificate by GPO

March 12, 2015, 7:01 am
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Hello Experts!!!!

I need your help in below issue:-

I have to deploy certificate to user machines via GPO, but also check that the certificate should be deployed to only those users on which it is not present already.

Could you please guide me?.. Thanks in advance. 

Sourabh Kanoongo

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What is the difference between Logical Disk and Physical Disk?

October 31, 2013, 11:41 pm
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Hi.

When I do Performance Monitor, I got Logical Disk Avg. Disk sec/Write counter and  Physical Disk Avg. Disk sec/Write counter.

But I can see the different Avg. value and Max. value. 

Even if Logical and Physical Disk are one-to-one mapping.

Why did i get the result?

One the other hands, I got a same result that Logical Disk Avg. Disk sec/Read counter and  Physical Disk Avg. Disk sec/Read counter's Avg. value and Max. value.

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Figuring out windows system utilization - Programmatic Interface to Perfmon/Resmon

March 16, 2015, 9:53 pm
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Hello:

Is there a mechanism to figure out that a system is utilized for a given period of time without constantly monitoring it(like installing an agent and constantly running it)? is there a certain set of metrics that are natively captured by windows, that I can query using WMI/ Powershell?

any kind of refrences will be helpful

Thanks!!

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At least one of the input binary log files contain fewer than two data samples.

May 31, 2011, 5:37 pm
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Hi Guys,

I encountered this error, when I stop the my defined collection set and try to see the related report in Performance Monitor. I searched on the Internet says that a fast start/stop man end without enough counter data being collected. However, it seems not the case in my scenario. I set the sample interval to 15 seconds (default) and run the collection set more than 1.5 days.

By the way, I monitor the Windows Server 2008 SP1 server on a remote Windows 7 SP1, both of them are 64-bits. Only general performance counters are added such as CPU, DISK related. I am looking forward to your help. Thanks in advance.

P.S. I forgot to say, I set up a same data collector on the local computer (Windows 7 box), this does not happen. So, I believe I must has some configuration issues for remote monitor.

Please mark replies as helpful or answers if they are helful, doing so can help others encountering the similar issue.
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How to get numeric information about system performance using WMI calls?

March 24, 2015, 5:22 pm
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Hello everyone,

I'll make the question summarized for your convenience. I want to achieve the following task:

-To be able to measure system performance over a sustained period of time.

The way I intend to tackle that task is by doing the following:

-To use WMI calls to get system performance data in a numeric and/or a percentage form. (RAM utilization, CPU utilization, Power state [active/idle]). 

The information I am trying to get is EXACTLY the information you can see in Task Manager under Performance tab. 

Please help. If you think there is a better way to do this than using WMI calls, I couldn't be more glad to take your advice and apply it!!

Thanks in advance!

Ray


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monitor an application

March 28, 2015, 1:26 pm
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Environment is Windows server, R2008 I think, a 64 bit server.

We need to monitor the performance of an application and log some data in a text file There is a field called Commit and we need to check and record its value over an entire day.  How can this be done?   I suspect power shell can do it but have never used that.

I have found the command get-process but only the second line (the values) is needed and is to be written to a CSV file.

~jag77 We need to know what a dragon is before we study its anatomy. (Bryan Kelly, 2010)



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How to check the "APPWIZ.CPL" of a remote machine ?

March 30, 2015, 2:28 am
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Hi All,

I would like to know is there a way to check the programs and features options of a remote machine[Server] from a local system[Server].

I tried the following step but that is not accurate since it was showing huge differences in the installed programs

From the local system[Server] , i call the remote machines [Server]C drive [\\machine id\C$]

Once i landed in C drive , then navigate to Windows---System32---Then Appwiz.cpl[C:\Windows\System32\appwiz.cpl]

It will open the programs and features .

Is there any other accurate way for checking the programs list of a remote machine or Server ?

Thanks In Advance 

Madhu Madhavan

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Confusions on page file

September 16, 2014, 8:45 am
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Hi,

For lat few days I  have been working on windows performance tools like Task manager,Resource monitor,Perfmon on those  I have few questions regarding page file. 

Based on what I understood I am asking questions, correct me if I am wrong

1) In Task manager "commit size" is the Virtual memory allocated to the  process(I believe in page file) ,in that case We should be having some ammount of commit size in a running machine with that  atleaset some percentage of page file shouldbe under use, But in perfmon i am seeing 0% page file usage




2)In task manager what is the "Paged pool" memory for each process, does it mean it is paged out to Pagefile in hard drive if yes like same above why my Page file is showing 0% usage

3)How the marked things are related to each other.

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Forcing Perfmon to write data to disk in real time

April 3, 2015, 9:55 am
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In 2008R2 Is there a way to have perfmon write the counters to disk in real-time instead of buffering the data in memory?

I have a situation where I need to run perfmon on a server that suddenly becomes unresponsive.

My problem is that perfmon does not write the counters to disk unless the buffer fills up or the data set is cleanly shutdown. When the server fails the data is not written and is lost.

I cannot remotely monitor the server because I believe the network connection fails before the server becomes fully unresponsive, perhaps 40 seconds or so before hand. Remote monitoring shows an abrupt loss of data. I am looking to find out if anything is happening during that (possible) short window.

Thanks

Derek


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HP Probook 450 G1 Windows 7 Professional SP1

April 4, 2015, 5:55 pm
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How can I PRINT the "PRT SC"? on an HP ProBook 450 G1 Windows 7 Professional SP1

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