Articles by Shiv Iyer

About Shiv Iyer

Open Source Database Systems Engineer with a deep understanding of Optimizer Internals, Performance Engineering, Scalability and Data SRE. Shiv currently is the Founder, Investor, Board Member and CEO of multiple Database Systems Infrastructure Operations companies in the Transaction Processing Computing and ColumnStores ecosystem. He is also a frequent speaker in open source software conferences globally.

PostgreSQL for SQL Server DBAs – What is an alternative to sys.dm_exec_query_stats in the PostgreSQL world?

PostgreSQL for SQL Server DBAs The sys.dm_exec_query_stats Dynamic Management View (DMV) in Microsoft SQL Server provides performance statistics for cached query plans. It allows database administrators and developers to monitor and analyze SQL query performance, […]

InnoDB Locking Mechanisms Explained: From Flush Locks to Deadlocks

InnoDB, as a MySQL storage engine, uses various locking mechanisms to manage concurrency and ensure data integrity. Understanding these locks is essential for effective database administration and optimization. Now, let's explore each of these lock [...]

Tips and Tricks for troubleshooting MySQL Thread Cache performance in high concurrent update applications

MySQL thread cache MySQL thread cache plays a crucial role in systems with high concurrency, especially during frequent updates. When sized correctly, the thread cache reduces the overhead of creating and destroying threads for new [...]

PostgreSQL auto_explain Extension: Optimizing Query Performance in PostgreSQL 16

PostgreSQL Auto_Explain_Extension To use the advanced auto_explain extension in PostgreSQL 16, you should first load it into the server. This can be done by adding auto_explain to either session_preload_libraries or shared_preload_libraries in the postgresql.conf file. [...]

PostgreSQL Composite Index Explained

Composite indexes in PostgreSQL Composite indexes in PostgreSQL are a powerful tool designed to optimize database performance. They are a type of database index that encompasses more than one column of a table, making them […]

MySQL Performance Optimization: Using Workload Statistics Effectively

MySQL Performance Optimization When troubleshooting MySQL 8 performance issues, relying on workload statistics helps identify query inefficiencies and optimize resource allocation effectively. Analyzing workload patterns enables targeted optimizations, reducing query response times and improving overall [...]

Query Throughput Capacity in MySQL: Advanced Statistical Analysis for Performance

Query Throughput Capacity in MySQL Performance Troubleshooting Query Throughput Capacity in MySQL performance troubleshooting measures the number of queries processed by the server within a specific time frame (e.g., queries per second). This metric serves [...]

Checkpointing in PostgreSQL: Mastering Configuration for Performance

Checkpointing in PostgreSQL Checkpointing in PostgreSQL plays a crucial role in performance. Here's a breakdown of how it impacts various factors: Impact of Checkpointing in PostgreSQL on Performance: I/O Activity: PostgreSQL writes all modified data [...]

MySQL Performance with CPU Affinity and Priority Management

Using CPU affinity and nice levels to prioritize MySQL processes can significantly enhance performance, especially on multi-core systems or servers with other demanding applications. Here’s how to do it: 1. Setting CPU Affinity Purpose: CPU [...]

MySQL Thread-Based Architecture Insights: Connection Handling and Performance

MySQL's Thread-Based Architecture Understanding MySQL's Thread-Based Architecture is crucial for comprehending the database's performance and behavior under different workloads. MySQL utilizes threads to handle various tasks, including client connections, query execution, and system maintenance. Let's [...]

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