Dropped Packets on MariaDB/MySQL Linux Servers

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 28 Nov 2019 12:05:12 +0000

When we do MariaDB and MySQL Database server analysis we see from time to time systems with a lot of dropped packets on a network interface:

MariaDB and MySQL Benchmarking

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 11 Mar 2010 23:29:59 +0000

Database Benchmark

sysbench (filesystems and OS/HW tests), Sysbench source, sysbench v0.5, sysbench scripts
OSDL Database Test Suite (download)
DBT2 (TPC-C, OLTP), DBT2 Benchmark Tool for MySQL
DBT3 (TPC-H, complex and long running queries, data warehouse (DWH))
TM1 (3^rd party, ODBC, telecom benchmark)
TPC Benchmarks
TPCC-mysql
db_STRESS
HammerDB
db_bench
Acronis perfkit (benchmark, benchmark-db)
Web3Bench (TiDB, MySQL written in Java/Python)
Finch (Finch is a MySQL benchmark tool developed for software engineers and modern infrastructures.)

General Benchmarking Tools

Apache JMeter: To test performance on static and dynamic resources (files, Servlets, Perl scripts, Java Objects, Data Bases and Queries, FTP Servers and more).
Gatling: Gatling is a highly capable load testing tool. It is designed for ease of use, maintainability and high performance.
Tsung: Open-source multi-protocol distributed load testing tool.
Slamd Java-based Distributed Load Generation Engine application designed for stress testing and performance analysis of network-based applications.
Grinder A Java load testing framework that makes it easy to run a distributed test using many load injector machines.
mysqlslap mysqlslap is a diagnostic program designed to emulate client load for a MySQL server and to report the timing of each stage. It works as if multiple clients are accessing the server.
bm
httperf
apachebench (ab)

CPU Benchmarking

CoreMark

Disk benchmarking

FIO
Filesystem Benchmark: IOzone, Bonnie
Harddisk-Benchmark: Bonnie++, Iometer

# bonnie -s 2047 -S 10000

Bonnie 1.4: File './Bonnie.12330', size: 2146435072, volumes: 1
Writing with putc()... done: 20440 kB/s 89.7 %CPU
Rewriting... done: 18940 kB/s 18.3 %CPU
Writing intelligently... done: 46256 kB/s 28.8 %CPU
Reading with getc()... done: 18771 kB/s 82.1 %CPU
Reading intelligently... done: 32549 kB/s 17.3 %CPU

 ---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
 -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --10k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
master 1*2047 20440 89.7 46256 28.8 18940 18.3 18771 82.1 32549 17.3 183.6 1.5

with fsync

Network on FromDual GmbH