Linux Performance Monitoring Tools
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This slides help to understand the Linux performance problems and how to measure the same.
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Linux Performance Monitoring Tools
- 1. Linux Performance Monitoring Tools Manosh Malai CTO, Mydbops 3rd April 2021 Mydbops
- 2. • Interested in Open Source technologies • Interested in Performance Engineering, MongoDB, DevOps & DevOpSec Practices • Tech Speaker/Blogger • CTO, Mydbops IT Solution Manosh Malai About Me
- 3. Consulting Services Managed Services Focuses on MySQL, MongoDB and PostgreSQL Mydbops Services
- 4. 400 + Clients In 4 Yrs. of Operations Our Clients
- 5. Methodologies Linux Performance Analysis Tool Introduction Agenda
- 6. INTRODUCTION
- 7. Goals Of Performance Monitoring ▪ Utilization: How much of a resource is engaged in percentage overtime ▪ Cost: The price/Performance ratio ▪ Throughput: Typicallly data movement in bits or bytes per second ▪ Rate: A transaction/request per second ▪ Latency: Runtime of a query or operation, typically measured in milliseconds
- 9. Anti Method Street Light Anti-Method Drunk Man Anti-Method Blame Someone Else Anti-Method Pick some familiar observability tools and look for obvious issues Tune things at random until the problem goes away Point to other team then sit and relax
- 10. Performance Methodologies Workload Characterization Drill-Down Analysis USE Method RED Method
- 11. Workload Characterization Who is causing the load(PID, Process Name, UID, IP address) Why is th load Called?(Trace in code) How the load changing over time What is the load(IOPS, Throughput)
- 12. Drill-Down Analysis Is a process of breaking problems Into its basic elements To find the root cause(s)
- 15. Simple System Design CPU Core Core LLC GFX Memory Controller I/O Controller SSD E1000 RAM PCIe FSB
- 16. Linux Performance Observability Tools
- 17. CPU Observability Tools(My Fav) ▪ top, htop, atop ▪ mpstat -P ALL 1 ▪ vmstat 1 ▪ execsnoop ▪ runqlen 10 1 ▪ runqlat 10 1 ▪ runqslower ▪ cpudist (This tool also help to measure Off-CPU Analysis)
- 18. Memory Observability Tools(My Fav) ▪ free ▪ top or ps per process memory usage ▪ pmap -x <pid> ▪ vmstat 1 ▪ sar -B 1
- 19. File System Observability - Linux Kernel I/O Stack
- 20. File System Observability - File System Cache Page Cache VFS Directory Cache Inode Cache EXT4 XFS ... Block Device Interface Disks Page Scanner
- 21. File System Observability Tools(My Fav) ▪ vfsstat (we can call this VFS Level IOSTAT) ▪ opensnoop ▪ cachestat ▪ cachetop ▪ ext4slower/xfsslower ▪ ext4dist/xfsdist
- 22. Disk I/O Observability Tools(My Fav) ▪ iostat -dxz 1 ▪ iotop ▪ biosnoop ▪ biolatency ▪ biotop
- 23. Tools installation ▪ https://github.com/iovisor/bcc/blob/master/INSTALL.md ▪ apt-get install ssystat ▪ apt-get install iotop ▪ apt-get install atop
- 25. Reach Us : Info@mydbops.com Thank You
- 26. Thanks to One Person