August 22nd - 24th in Toronto, Canada
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Tuesday, August 23 • 10:55am - 11:45am
Latency Outliers Root Cause Analysis in the Field by Combining Aggregation and Tracing Tools - Mathieu Desnoyers & Julien Desfossez, EfficiOS Inc.

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We present how to combine tracing and aggregation tools to automatically detect latency outliers in production systems, capture detailed context information focused around each occurrence, and perform off-line root cause analysis.

We present the LTTng (lttng.org) ecosystem, which includes tracing with the LTTng kernel and user-space tracers, online aggregation with the latency-tracker, as well as graphical and batch-mode post-processing analyses with Trace Compass (tracecompass.org) and lttng-analyses.

The run-time portion of these tools is designed for low-impact on the systems, thus allowing tracing and aggregation to be enabled in production.

We demonstrate how to use these tools in embedded, real-time and server environments through realistic user stories.


Julien Desfossez

Software Developer, EfficiOS Inc.
Julien Desfossez is a Software Developer at EfficiOS Inc working primarily on LTTng, lttng-analyses and the latency-tracker projects.
avatar for Mathieu Desnoyers

Mathieu Desnoyers

CEO, EfficiOS Inc.
Mathieu Desnoyers main contributions are in the area of tracing (monitoring/performance analysis/debugging) and scalability, both at the kernel and user-space levels. He is maintainer of the LTTng project, the Userspace RCU library, and of the Linux kernel membarrier(2) and rseq(2... Read More →

Tuesday August 23, 2016 10:55am - 11:45am

Attendees (21)