The second log is much better for trouble-shooting, but what we are really doing is anticipating an error and handling the error.
DATA VIEWER TOOL CODE
The logs may be hard to read if the logs lacks structure or indentation.īelow is an extract from what could be a text log.Ĭopy Code * Trying to create file for editing * If you are a new to a job, these logs can be very hard to read and understand. What normally is done to make faster logs is writing more compact logs,īy using abbreviations, using less formatting, omitting logging some values, The performance penalty might be negligible.īut with older machines and spinning drives, this was a problem,Īnd it is still a problem on embedded hardware where the hardware resources are low. With today's 8 core machines with hyper fast SSD disks. Which may otherwise be lost if the application crashes. This is slow, but you are guaranteed not to miss any logs, In some cases one prefers to open and close the log file every time it is written to,Īnd flush the data directly or use non-buffered log files. Which is then flushed to disk by a background thread in the OS When you normally write to disk, you never write to disk directly, Secondly, memory is copied several times in internal buffers in the system. Writing a lot of data might hit performance.įirstly, if data has to be formatted/calculated/retrieved before being output.
![data viewer tool data viewer tool](https://manula.r.sizr.io/large/user/1483/img/gridview.jpg)
Since very verbose logs may slow down an application.
![data viewer tool data viewer tool](https://appsys.net/image/caseStudy/real-time-data-analytics-tool_1.jpg)
Raw text logs are usually compact and a bit cryptic in nature, With limited possibilities for searching and restructuring.
![data viewer tool data viewer tool](https://www.researchgate.net/profile/Peter-Thorpe/publication/51621179/figure/fig2/AS:669214717247494@1536564630171/The-HCS-interface-of-the-JCB-DataViewer-provides-search-tools-for-the-mining-of-complete.png)
Which are normally viewed in some simple text editor The intent here is to improve on raw logs, In this article I will experiment with different features that a custom ETW log viewer can have. This is a follow-up article to Application Analysis