When Benchmarks Lie:
Predictability, Variability, and the Real Meaning of Efficiency
Voices of Video with Juan Casal, Partner and Chief R&D Officer at Cires21
In this Voices of Video episode, Juan Casal from Cires21 joins us to unpack why benchmarking often breaks down when video systems move from staging to real production.
Average throughput rarely tells the full story. Variability, sustained load, jitter, clock accuracy, thermal limits, and pipeline interactions begin to dominate behavior at scale. Teams that optimize individual components often shift pressure downstream instead of improving the system as a whole.
We explore why predictability matters more than peak performance, why worst-case behavior drives real deployment decisions, and how efficiency should be understood as operational headroom, not just cost per stream.
For video engineers, platform architects, and infrastructure teams designing large-scale or performance-sensitive workflows, this conversation reframes benchmarking as a systems discipline, not a marketing exercise.
Juan Casal - Partner and Chief R&D Officer at Cires21
Juan Casal is Partner and Chief R&D Officer at Cires21 with 20+ years of experience in professional video engineering. His expertise includes real-time HEVC encoding, high-density transcoding on Intel Media SDK, Content Aware Encoding using machine learning, low-delay OTT delivery via Chunked Transfer Encoding, and H.265 tile-based mosaics. Former Principal Architect at Nokia VBU, he has led European R&D projects and developed across CPU, GPU, ARM, and DSP platforms. He is the creator of the LGPL open-source encoder HomerHEVC and contributor to multiple video patents
Leonardo Nieto, Director of Market Development, EMEA, at NETINT Technologies
Leonardo Nieto represents NETINT across EMEA, working closely with streaming platforms, telecom operators, and infrastructure providers scaling video in power- and cost-constrained environments. With experience spanning applied transcoding, live streaming, and high-growth technology ventures, he focuses on the practical realities of deployment: density per rack, watts per stream, codec transitions, and cloud versus edge trade-offs.
In Voices of Video, Leo serves as the Voice of the Market, bringing forward the questions engineering and platform teams consistently ask in the field. His role is to ground technical conversations in operational and economic reality, ensuring performance claims hold up under real production conditions.