Tue.Mar 17, 2020

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Types of Automation Testing and Their Misconceptions

DZone

Automation testing has become one of the most adopted techniques in the software testing process, it helps to accelerate go-to-market launch while providing enough bandwidth for the testers to work on finding critical test cases. However, I have seen it happen in multiple organizations that the higher-ups often hesitate to implement automation testing for their projects, only due to some misconceptions.

Testing 173
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Post: Fauna, Sisu, Educative, PA File Sight, Etleap, Triplebyte, Stream

High Scalability

Who's Hiring? Sisu Data is looking for machine learning engineers who are eager to deliver their features end-to-end, from Jupyter notebook to production, and provide actionable insights to businesses based on their first-party, streaming, and structured relational data. Apply here. T riplebyte lets exceptional software engineers skip screening steps at hundreds of top tech companies like Apple, Dropbox, Mixpanel, and Instacart.

Education 105
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Finding Distinct Values Quickly

SQL Performance

Back in 2014, I wrote an article called Performance Tuning the Whole Query Plan. It looked at ways to find a relatively small number of distinct values from a moderately large dataset, and concluded that a recursive solution could be optimal. This follow-up post revisits the question for SQL Server 2019, using a larger number of rows. Test Environment.

Servers 86
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How to identify NVME drive types and test throughput

n0derunner

Start by identifying the NVME drive type (“nvme list“) since the NVME drives use the nvme protocol, they will not sshow up in the output of lsscsi Identify NVME Identify the nvme drives using “nvme list” nutanix@NTNX-18SM3E420118-A-CVM:10.56.6.36:~/tmp$ sudo nvme list Node SN Model Version Namespace Usage Format FW Rev/dev/nvme0n1 S3HDNX0KC00137 SAMSUNG MZWLL1T6HEHP-00003 1.2 1 1.60 … The post How to identify NVME drive types and test throughput appeared first on n0

Testing 78
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An empirical guide to the behavior and use of scalable persistent memory

The Morning Paper

An empirical guide to the behavior and use of scalable persistent memory , Yang et al., FAST’20. We’ve looked at multiple papers exploring non-volatile main memory and its implications (e.g. most recently ‘ Efficient lock-free durable sets ‘). One thing they all had in common is an evaluation using some kind of simulation of the expected behaviour of NVDIMMs, because the real thing wasn’t yet available.

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COVID-19 Hazard Analysis using STPA

Adrian Cockcroft

Memorial at Hawaiian native burial ground, Kapalua, Maui. Picture taken by Adrian March 17, 2020 A resilient system continues to operate successfully in the presence of failures. There are many possible failure modes, and each exercises a different aspect of resilience. The system needs to maintain a safety margin that is capable of absorbing failure via defense in depth, and failure modes need to be prioritized to take care of the most likely and highest impact risks.

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COVID-19 Hazard Analysis using STPA

Adrian Cockcroft

March 17, 2020 Continue reading on Medium ».

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