SESSION ON-DEMAND

All Things P99

The event for developers who care about P99 percentiles and high-performance, low-latency applications

Translations at Scale: Memory Optimization Techniques That Kept Uber’s P99 Under 1ms

Discover how Uber reimagined its translation service by shifting from a purely in-memory approach to a hybrid memory-disk architecture. Learn how this transformation reduced memory usage by 95% during initial load, maintained sub-millisecond P99 performance, and achieved a 99.5% cache hit ratio. We’ll explore the technical implementation details and share lessons learned during this optimization journey.

19 miutes

Cristian Velazquez, Staff Site Reliability Engineer at Uber

Cristian Velazquez is a Staff Site Reliability Engineer on the Maps Production Engineering team at Uber. He works on multiple efficiency initiatives across multiple organizations. He leads the GC tuning efforts across the company.

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P99 CONF OCT. 21 + 22, 2026

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