LinuxCon Japan | Presentations

Combined Tracing/Virtualization Session

Date: 4:35pm, Tuesday, September 28th
Location: Quarante C3 
Topic: Tracing
Presentation: {Slides}

Virtualization has brought immense benefits to the datacenter in terms of flexibility, but it comes with a hefty price tag attached: a good deal of added complexity. In other words, virtualization has contributed to make the life of system administrators, who now need to care about virtual machines too when tuning the datacenter for a particular use-caes or doing general troubleshooting, even more misserable. Developers working on optimizations or debugging hard to find bugs are not better off. Virtualization-aware tracing and profiling to the rescue! In this session we present the legacy tracing and profiling tools provided by KVM (kvm_stat, kvm_trace) as well as ongoing work to leverage the powerful tracing and profiling infraestructure provided by Linux (ftrace, perf), which, among other things, makes it possible to perform unified analysis of a virtual machine and its host. Finally, we will briefly touch on experimental work to add PMU (Performance Monitoring Unit) virtualization capabilities to KVM.

People planning to attend this session may also want to see:

» Virtualization End User Discussion · Fernando Luis Vázquez Cao, NTT Open Source Software Center

Fernando Luis Vázquez Cao, NTT Open Source Software Center (Moderator)

Fernando is a Linux developer based in Tokyo.His currents interests include virtualization, data center bridging technologies, and high performance networking and storage systems. He is currently a principal software engineer at NTT Open Software Center and senior consultant at NTT Data Intellilink, dividing his time between community open source work and his consulting and support duties at NTT.

» Website

Masami Hiramatsu, Hitachi (Moderator)

Masami Hiramatsu works at Hitachi, and is a Kprobes maintainer and a SystemTap developer. He has been working in the kernel tracing area since he joined Hitachi from 2002. He has worked on SystemTap for improving enterprise-required features. He is also developing the dynamic event tracing on ftrace and perf tools by re-implementing basic dwarf technology of SystemTap on the linux kernel tree.

» Website