The available record does not confirm a specific summit session titled “Perf at Collaboration Summit 2015.” It connects the event to a Linux Foundation slide deck called “BPF-in-kernel virtual machine,” attributed to Alexei Starovoitov, but the deck itself could not be checked. Separately, a 2015 article demonstrates Linux perf on ARM systems; it does not say that its example came from the summit.
Is “Perf at Collaboration Summit 2015” a confirmed talk?
Not on the evidence available. A Linux-focused page links a Linux Foundation presentation titled “BPF-in-kernel virtual machine,” attributes it to Alexei Starovoitov, and associates it with the 2015 Linux Collaboration Summit. That is a plausible lead for someone looking for a summit session involving performance or tracing, but it does not establish that this was a talk titled “Perf at Collaboration Summit 2015.”
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The linked slide deck could not be retrieved for verification, and no reliable official event listing for that exact title is established here. The speaker, session title, contents, and any conclusions therefore should not be treated as confirmed beyond the association reported by the secondary page.
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What Linux perf measures
Linux perf, also referred to in this context as perf_events, collects performance data, including hardware-counter events. Depending on the system and the counters available to it, measurements can include events such as instructions executed or cache misses. These measurements can help explain how systems behave, rather than relying on elapsed CPU time alone.
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A 2015 ARM example uses perf to compare two systems with different clock speeds and cache configurations. Its point is contextual: when the machines differ in those ways, a time measurement alone may not answer why their performance differs. Event counts can provide another kind of evidence, but what they mean depends on the event selected and the hardware being measured.
How eBPF relates to performance tracing
eBPF is a mechanism used in Linux tracing and observability workflows. Technical material describes eBPF programs attached to event sources that include perf_events. This establishes a technical connection between eBPF and performance-event infrastructure; it does not establish what the summit presentation demonstrated, measured, or recommended.
What can and cannot be concluded
- Established: Linux
perfcan collect performance data, including hardware-counter events, and a 2015 ARM example uses it to compare systems. - Established: eBPF tracing workflows can use event sources that include
perf_events. - Not established: that “Perf at Collaboration Summit 2015” was the exact title of a session, or that the BPF slide deck is the talk the title refers to.
- Not established: any specific benchmark, measurement, result, or recommendation from the summit speaker.
Accordingly, the ARM article is useful background on the tool, not documentation of the summit session. The BPF presentation remains a possible event-related reference, not a verified match for the title.
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