Remove 2000 Remove Cache Remove Database Remove Virtualization
article thumbnail

Percona Toolkit – A Quick Introduction to Summary

Percona

You can get summaries of your database servers, or you verify replication lag on MySQL and PostgreSQL servers. You get thirty-eight scripts that can do any manner of actions, and you will find them very valuable in your regular database work. virtual = 2.2G Caches | 12.4G virtual = 2.2G Caches | 12.4G

Cache 99
article thumbnail

How Many Warehouses for the HammerDB TPC-C Test?

HammerDB

However most people use HammerDB with keying and thinking time disabled and therefore each virtual user can approximately drive the CPU resources of one CPU core on the database server. By default each virtual user has the concept of a home warehouses where approximately 75% of its workload will take place.

C++ 40
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

article thumbnail

SQL Server On Linux: Forced Unit Access (Fua) Internals

SQL Server According to Bob

SQL Server relies on Forced-Unit-Access (Fua) I/O subsystem capabilities to provide data durability, detailed in the following documents: SQL Server 2000 I/O Basic and SQL Server I/O Basics, Chapter 2. Durability: “In database systems , durability is the ACID property which guarantees transactions that have committed will survive permanently.

Servers 90
article thumbnail

Azure Well-Architected Framework: What it is and how to tame it with AI and automation

Dynatrace

Getting precise root cause analysis when dealing with several layers of virtualization in a containerized world. Too much data requested from a database. Missing caching layers. Figure 5 – Dynatrace measures over 2000 different metrics ready for use as dedicated SLIs. Missing retry and failover implementation.

Azure 187
article thumbnail

Proof of Concept: Horizontal Write Scaling for MySQL With Kubernetes Operator

Percona

In both cases, when using virtually-synchronous replication, the process will require certification from each node and local (by node) write; as such, the number of writes is NOT distributed across multiple nodes but duplicated. Also, in the case of multi-Primary, the writes will be distributed by transaction. The POC Why this POC?

Traffic 123
article thumbnail

SQL Server I/O Basics Chapter #2

SQL Server According to Bob

KB sectors run on smaller sectors   14 System and sample databases   15 Determining the formatted sector size of database   15 What sector sizes does SQL Server support? KB boundary   12 Larger transaction logs   13 Restore and attach   14 Format for 4 ?KB

Servers 40
article thumbnail

SQL Server I/O Basics Chapter #1

SQL Server According to Bob

Microsoft SQL Server I/O Basics Author: ​​ Bob Dorr, Microsoft SQL Server Escalation Published: ​​ December, 2004 SUMMARY: ​​ Learn the I/O requirements for Microsoft SQL Server database file operations. This will help you increase system performance and avoid I/O environment errors.

Servers 40