Category: Site Reliability Engineering

Measuring Network Throughput using NetPerf & iPerf

Using NetPerf and iPerf for UDP throughput

The three key measures of network performance are latency (the time required to transfer data across the network), throughput (the amount of data or number of data packets that can be delivered on an IP network in a predefined timeframe) and jitter or delay jitter (the changes and their duration in delay that occur during …

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Elasticsearch and Kibana Search Speed Tuning

Elasticsearch - Logstash - Kibana

This blog post provides some tips for Elasticsearch and Kibana Search Speed Tuning, apart from those recommended by Elasticsearch official website [1]: giving enough memory to the filesystem cache using faster hardware searching as few fields as possible pre-indexing data avoiding scripts considering mapping identifiers as keywords etc. I recently installed the ELK Stack (Elasticsearch, …

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