RML Utilities and SQL Server 2012

RML Utilities is a free utility created by Microsoft and used by the SQL Server support team.  It’s available for download and if you work with SQL Trace data at all I’d recommend giving it a look. I know, I know, Trace is deprecated in SQL Server 2012.  But not everyone is running 2012 so until then, Trace files will still exist.

I first heard about RML Utilities years ago from Andrew Kelly ( b | t ) and have used it to analyze trace data from customers, which is really just a fraction of what it can do.  Today I’ve been working with it to compare two trace files.  Yes, that’s right…compare two trace files.  Imagine you run a load test in your production environment, then run that same test in your development environment which might have different hardware or updated code.  You can capture PerfMon metrics to compare Memory, CPU and I/O…but what about the performance of individual queries?  You can get that from the DMVs, but it’s really nice if you can look at the information side by side.  And I don’t mean two instances of Profiler open, I mean really compare the data.  RML Utilities will do that for you!

But, before I could get RML Utilities to do that, I had to get it to process a trace file.  This was my issue today.  I had two VMs, one with 2008R2 and 2012 installed, one with only 2012 installed.  The readtrace.exe file is used to process trace files, and the commands require the trace file (input), an output directory, a SQL Server instance and a database.  I had everything set up, but my process would fail with this set of messages:

09/27/12 15:49:44.262 [0X00000AA4] Readtrace a SQL Server trace processing utility.
Version 9.01.0109 built for x64.
Copyright (c) Microsoft Corporation 1997-2008. All rights reserved.
…extra text removed…
09/27/12 15:49:44.263 [0X00000AA4] –IC:\PerfLogs\Trace\File_RML_2008R2.trc
09/27/12 15:49:44.263 [0X00000AA4] –oC:\SQLskills\RMLOutput
09/27/12 15:49:44.263 [0X00000AA4] –SWIN2008R2PS\SQL2012
09/27/12 15:49:44.263 [0X00000AA4] –dBaselineData
09/27/12 15:49:44.263 [0X00000AA4] Using language id (LCID): 1024 [English_United States.1252] for character formatting with NLS: 0x00060101 and Defined: 0x00060101
09/27/12 15:49:44.263 [0X00000AA4] Attempting to cleanup existing RML files from previous execution
09/27/12 15:49:44.264 [0X00000AA4] Using extended RowsetFastload synchronization
09/27/12 15:49:44.264 [0X00000AA4] Establishing initial database connection:
09/27/12 15:49:44.264 [0X00000AA4] Server: WIN2008R2PS\SQL2012
09/27/12 15:49:44.264 [0X00000AA4] Database: BaselineData
09/27/12 15:49:44.265 [0X00000AA4] Authentication: Windows
09/27/12 15:49:44.266 [0X00000AA4] Unable to connect to the specified server.
09/27/12 15:49:44.266 [0X00000AA4] ERROR: Performance analysis failed to initialize.  See previous errors and correct the problem before retrying.
09/27/12 15:49:44.266 [0X00000AA4] *******************************************************************************
* ReadTrace encountered one or more ERRORS. An error condition typically      *
* stops processing early and the ReadTrace output may be unusable.            *
* Review the log file for details.                                            *
09/27/12 15:49:44.266 [0X00000AA4] ***** ReadTrace exit code: –9

My first thought was that it was having an issue with SQL Server 2012.  The documentation does not list SQL Server 2012 as a supported version.  So I tried it on my local machine against a 2012 instance, and it worked.  I reviewed the error message: “Unable to connect to the specified server.”  This made no sense, so I verified that I could connect with sqlcmd. Then I tried it against my other VM, thinking maybe it was something with VMWare.  That worked.  Then I started comparing the output.  From the successful process, I had the following:

09/27/12 15:59:07.349 [0X00000CD4] Readtrace a SQL Server trace processing utility.
Version 9.01.0109 built for x64.
Copyright (c) Microsoft Corporation 1997-2008. All rights reserved.
…extra text removed…
09/27/12 15:59:07.350 [0X00000CD4] –IC:\PerfLogs\Trace\File_RML_2008R2.trc
09/27/12 15:59:07.350 [0X00000CD4] –oC:\SQLskills\RMLOutput
09/27/12 15:59:07.350 [0X00000CD4] –SWIN2008R2-1\SQL2012
09/27/12 15:59:07.350 [0X00000CD4] –dBaselineData
09/27/12 15:59:07.350 [0X00000CD4] Using language id (LCID): 1024 [English_United States.1252] for character formatting with NLS: 0x00060101 and Defined: 0x00060101
09/27/12 15:59:07.350 [0X00000CD4] Attempting to cleanup existing RML files from previous execution
09/27/12 15:59:07.351 [0X00000CD4] Using extended RowsetFastload synchronization
09/27/12 15:59:07.351 [0X00000CD4] Establishing initial database connection:
09/27/12 15:59:07.351 [0X00000CD4] Server: WIN2008R2-1\SQL2012
09/27/12 15:59:07.351 [0X00000CD4] Database: BaselineData
09/27/12 15:59:07.351 [0X00000CD4] Authentication: Windows
09/27/12 15:59:07.390 [0X00000CD4] Using SQL Client version 10
09/27/12 15:59:07.390 [0X00000CD4] Creating or clearing the performance database
09/27/12 15:59:07.892 [0X00000CD4] Processing file: C:\PerfLogs\Trace\File_RML_2008R2.trc (SQL 2008)
09/27/12 15:59:07.892 [0X00000CD4] Validating core events exist
09/27/12 15:59:07.892 [0X00000CD4] Validating necessary events exist for analysis
…more extra text removed…

My issue was that RML Utilities uses version 10 of the Client.  On the VM I only had SQL 2012 installed, which is version 11.  Once I downloaded and installed the 2008R2 Client (from here, you just need sqlncli_amd64.msi for an x64 machine), everything ran fine.  Thus, even though SQL 2012 is not listed as a supported version for RML Utilities, it looks like it will run as long as you have version 10 of the Client installed.  And as for comparing those files?  That’s for another post!

A Poll: Recommendations for New Speakers

This morning I wrote a post on my original blog about presenting. I’m cross-posting here because I want to ask other speakers, and my SQLskills colleagues, for the number one piece of advice they provide to new speakers. Write a quick post, or leave a comment. New presenters want to hear from you, and I know that I can always get better. Don’t over think it; just share what comes to mind first. Go!

Customizing the Default Counters for Performance Monitor

I am a huge fan of Performance Monitor (PerfMon). Yes, I know, that’s a geeky statement, but I don’t care. There is such a wealth of information available from PerfMon; you can use it to look at performance real-time, or to capture metrics about performance over time.  And, the functionality is built in to Windows. It’s there no matter what Windows server you’re working on – and when you work on a lot of different servers having a tool you can consistently rely on is extremely useful.

But one challenge I had with PerfMon that took me a while to figure out was how to change the default settings. When I start PerfMon, it only shows the % Processor Time counter. Now that’s a useful counter, especially when there’s a performance issue going on, but I also want to look at other counters such as memory utilization and disk latency. When the system is having a problem, I dislike spending an extra minute or two to add all the counters I want to see. I want them to just be there when I open PerfMon.

For those of you running Windows 2008 and higher (and Windows Vista and higher for workstations), there is an easy solution.  If you’re on Windows XP or Windows 2003, I have a solution for you, too, it’s just a few extra steps.

Windows 2008+ and Windows Vista+

On your local or machine or server, select Start | Run and then open up Performance Monitor with the /sys Command-Line option: perfmon /sys

This opens Performance Monitor in a stand-alone mode (if you enter just perfmon, you get additional options such as Data Collector Sets and Reports).  Within PerfMon, add the counters you want to monitor.  You can either click on the green plus (+) to add counters, or right-click in the graph and select Add Counters…  Once you have added the counters, close PerfMon.  Trust me.  Just close it.

Go back to Start | Run and enter perfmon /sys again.  The counters you added should be selected.  Running Process Monitor on my machine showed that PerfMon saved a configuration file (Perfmon.PerfmonCfg) in Users\<username>\AppData\Local.  The location may vary depending on OS or roaming profiles (if you cannot find it, simply run Process Monitor and filter on perfmon.exe to find where it writes the file).

You can take this one step further by creating multiple .PerfmonCfg files – and they can be stored anywhere.  Once you have selected the counters in PerfMon, select File | Save Settings As… and create a new .PerfmonCfg file with the appropriate name, either locally or in a share.  Modify the counters as needed, then save the configuration as a different .PerfmonCfg file.  When you want to launch PerfMon for a specific .PerfmonCfg file, just double-click on the file.  A great benefit of the different files is that you can share them between servers.  However, take note of how you add the counters.  If you add a counter for a specific drive letter that doesn’t exist on every server, the counter will appear in the list, but no data will appear in the graph.

Windows 2003 and Windows XP

If you’re still running Windows XP or Windows 2003, don’t despair, I have another method.

On your local or machine or server, open up Performance Monitor (Start | Run| perfmon). Add the counters you want to monitor.  Once you have the counters added, right-click again in the graphing area and select Save As… and save it as a .html file. Then close PerfMon.

Start up PerfMon again, you should see that you only have the % Processor Time counter. Open the .html file you just saved in a text editor. Highlight everything (CTRL + A) and then copy it (CTRL + C). Switch back to PerfMon, click in the graph area and paste (CTRL + V). You can also click on the paste icon in the toolbar. The counters will immediately show up.  As with the configuration file, you can create multiple .html files to save locally or share.

Many routes to the same goal

Having the ability to open PerfMon with specific counters already selected is one of those little things that just makes my life easier.  Because there are usually many different ways to accomplish the same task in Windows (think of how you open Windows Explorer – do you right-click on the Start button and select Open Windows Explorer, or do you use CTRL + E, or something else?), I’m interested to know if there are other methods people have used to get counters to show up by default.  Feel free to leave a comment or send me an email if you know of other options.  I hope this helps!