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Testing Samsung storage in tpcc-mysql benchmark of Percona Server

 | July 26, 2016 |  Posted In: Benchmarks, MySQL

tpcc-mysql benchmark

This blog post will detail the results of Samsung storage in tpcc-mysql benchmark using Percona Server. I had an opportunity to test different Samsung storage devices under tpcc-mysql benchmark powered by Percona Server 5.7. You can find a summary with details here https://github.com/Percona-Lab-results/201607-tpcc-samsung-storage/blob/master/summary-tpcc-samsung.md I have in my possession: Samsung 850 Pro, 2TB: This is a SATA device and […]

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Monitoring MongoDB Response Time

 | February 26, 2016 |  Posted In: MongoDB, Prometheus

In this blog post, we’ll discuss how using Prometheus can help with monitoring MongoDB response time. I am currently comparing the performance of different storage engines on Percona Server for MongoDB, using a slightly customized version of Tim Callaghan’s sysbench-mongodb. Since I’m interested in measuring response time for database operations, I created a very simple exporter of response time […]

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InnoDB and TokuDB on AWS

 | February 1, 2016 |  Posted In: Benchmarks, InnoDB, TokuDB

In a recent post, Vadim compared the performance of Amazon Aurora and Percona Server on AWS. This time, I am comparing write throughput for InnoDB and TokuDB, using the same workload (sysbench oltp/update/update_non_index) and a similar set-up (r3.xlarge instance, with general purpose ssd, io2000 and io3000 volumes) to his experiments. All the runs used 16 threads for sysbench, and the following […]

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Using Cgroups to Limit MySQL and MongoDB memory usage

 | July 1, 2015 |  Posted In: InnoDB, MongoDB, MySQL

Quite often, especially for benchmarks, I am trying to limit available memory for a database server (usually for MySQL, but recently for MongoDB also). This is usually needed to test database performance in scenarios with different memory limits. I have physical servers with the usually high amount of memory (128GB or more), but I am […]

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Update on the InnoDB double-write buffer and EXT4 transactions

 | June 17, 2015 |  Posted In: Benchmarks, Hardware and Storage, InnoDB, MySQL

IMPORTANT: DON’T TRY THIS IN PRODUCTION. As demonstrated by Marko (see comments), it may corrupt your data. In a post, written a few months ago, I found that using EXT4 transactions with the “data=journal” mount option, improves the write performance significantly, by 55%, without putting data at risk. Many people commented on the post mentioning […]

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Tips on benchmarking Go + MySQL

 | May 14, 2014 |  Posted In: Benchmarks, MySQL, Percona Cloud Tools, Percona Server, Percona Software

We just released, as an open source release, our new percona-agent (https://github.com/percona/percona-agent), the agent to work with Percona Cloud Tools. This agent is written in Go. I will give a webinar titled “Monitoring All MySQL Metrics with Percona Cloud Tools” on June 25 that will cover the new features in percona-agent and Percona Cloud Tools, […]

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16000 active connections – Percona Server continues to work when others die

 | February 4, 2014 |  Posted In: Benchmarks, MySQL, Percona Server

We just published results with improvements in Thread Pool in Percona Server: Percona Server: Thread Pool Improvements for Transactional Workloads Percona Server: Improve Scalability with Thread Pool What I am happy to see is that Percona Server is able to handle a tremendous amount of user connections. From our charts you can see it can […]

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