My Journey Optimizing a CUDA Kernel with Polar Signals
A storage engineer's descent into warp stalls, memory throttles, and aligned stores
GPUDatabases+1
Author:
Alfonso Subiotto Marqués
All posts
Questioning an Interface: From Parquet to Vortex
Breaking free from the shackles of interface-imposed performance limitations
DatabasesDatafusion+2
Author:
Alfonso Subiotto Marqués
Das Problem mit German Strings
And why I don't want my database to choose the best encoding for me (yet)
DatabasesColumn Database+3
Author:
Alfonso Subiotto Marqués
Deterministic Simulation Testing in Rust: A Theater Of State Machines
How we designed our database for complete control over concurrency, time, randomness, and failure injection.
TestingDeterministic Simulation Testing+3
Author:
Alfonso Subiotto Marqués
(Mostly) Deterministic Simulation Testing in Go
How we used WASM and some Go runtime modifications to run deterministic simulation tests against FrostDB
TestingGo+5
Author:
Alfonso Subiotto Marqués
Designing Your Indexes for Better Database Performance
How we improved our database query performance by 80% and the intuition behind the changes that led to this improvement
ParcaDatabases+3
Author:
Alfonso Subiotto Marqués
Featured posts
Autonomous Optimization with Claude Code
Optimize your infrastructure autonomously every day with Claude Code and Polar Signals
AIClaude Code+1
OpenTelemetry Profiling goes Alpha
How to use it with Polar Signals & Parca
OpenTelemetryProfiling+2
Continuous NVIDIA CUDA Profiling In Production
Low-Overhead Profiling of GPUs with USDT Probes and eBPF
GPUProfiling
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