DumpAnalysis.org acquires TraceAnalysis.org to complete computer DATA artifact analysis. The domain currently points to Dump Analysis Portal page but this might change in the future.
- Dmitry Vostokov @ DumpAnalysis.org -
Posted in Announcements, CDF Analysis Tips and Tricks, Citrix, Debugging, Science of Software Tracing, Software Technical Support, Software Trace Analysis, Software Tracing for Dummies, Tools, Trace Analysis Patterns, Troubleshooting Methodology, Windows System Administration | No Comments »
Next obvious structural trace analysis pattern is called Circular Trace. Sometimes this information is missing in the problem description or trace metadata doesn’t reflect this. Then circular traces can be detected by trace file size (usually large) and from timestamps, like this 100Mb CDF trace snippet:
No Module PID TID Date Time Statement
[Begin of trace listing]
1 ModuleA 4280 1736 5/28/2009 08:53:50.496 [... Trace statement 1]
2 ModuleB 6212 6216 5/28/2009 08:53:52.876 [... Trace statement 2]
3 ModuleA 4280 4776 5/28/2009 08:54:13.537 [... Trace statement 3]
[... Some traced exceptions helpful for analysis ...]
3799 ModuleA 4280 3776 5/28/2009 09:15:00.853 [… Trace statement 3799]
3800 ModuleA 4280 1736 5/27/2009 09:42:12.029 [… Trace statement 3800]
[… Skipped …]
[… Skipped …]
[… Skipped …]
579210 ModuleA 4280 4776 5/28/2009 08:53:35.989 [… Trace statement 579210]
[End of trace listing]
In such traces the analysis region usually can be found at the beginning at the trace because as soon as elusive and hard to reproduce problem happens the trace is stopped.
- Dmitry Vostokov @ TraceAnalysis.org -
Posted in CDF Analysis Tips and Tricks, Debugging, Software Trace Analysis, Trace Analysis Patterns | 1 Comment »
DATA (Dump Artifact + Trace Artifact) - > DATA (Dump Analysis + Trace Analysis) examples:
1. Efficient
- My 64Gb server bluescreens. I set a complete memory dump option in Control Panel.
- A user cannot connect. I started tracing yesterday. Stopped today.
- I analyze all these artifacts every day.
2. Effective
- My 64Gb server bluescreens. I set a kernel memory dump option in Control Panel.
- A user cannot connect. I started tracing, tried to connect, stopped tracing.
- I analyze all these artifacts every day and write articles to reduce DATA load.
- Dmitry Vostokov @ DumpAnalysis.org -
Posted in Crash Dump Analysis, Crash Dumps for Dummies, Debugging, Software Technical Support, Software Trace Analysis, Software Tracing for Dummies | No Comments »
Good software engineers write good software trace statements. Good software support engineers and responsible customers trace(*) software wisely, enabling it at the right time and in the right quantities. The following preliminary article was written to help to trace software effectively to result in faster problem resolution via trace analysis:
Although, currently it’s geared towards CDF tracing in Citrix terminal services environment, these recommendations can be generalized to other traces as well and the article will be extended over time.
(*) Note the following terminological difference here. “Tracing” is meant in “select” / “start” / “stop” sense and not how to write good software trace statements during code construction and maintenance phases.
- Dmitry Vostokov @ TraceAnalysis.org -
Posted in Citrix, Debugging, Software Technical Support, Software Trace Analysis, Software Tracing for Dummies | No Comments »
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