Network

Table of Contents

• ifconfig
• ip
• ethtool --statistics
• nstat
• netstat --statistics
• ss
• Reasons for dropped packets
• Features of Network card
• Features of Network driver
• Network driver ring buffer
• TCP socket received and send buffer
• Flow Control
• Check over time: sar
• Dropwatch
• perf
• tcpdump
• /proc/net/netstat
• System Tap (stap)
• Literature

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:

ifconfig

# export DEV=enp0s25
# ifconfig …

Table of Contents

• Database Benchmark
• General Benchmarking Tools
• CPU Benchmarking
• Disk benchmarking
• Network Benchmarking
  • Tools
• Application Stress Testing
  • OwnCloud / NextCloud
  • Asterisk

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 …