KGKobi Grossmaninblog.epsiolabs.com·Nov 20, 2025 · 15 min readReleasing ioflame: an eBPF based I/O tracer and visualizerWe’re happy to release ioflame, an I/O tracing tool that we developed internally to debug high I/O latency and wait time. ioflame attaches to the Linux kernel block level with eBPF probes, tracing all I/O activity. The resulting output of the trace i...00
KGKobi Grossmaninblog.epsiolabs.com·Feb 9, 2025 · 15 min readHow we made our streaming joins 50% fasterWhen describing the core SQL (Or relational algebra) operators, the humble join shows up pretty fast. In fact, you would be hard pressed to find an app built on top of an SQL database which doesn’t use a join in one of its queries. For good reason! J...00
