Lupam Kumar Saha / software engineer

I'm interested in systems software.

I studied computer science at IIIT Dharwad and finished in 2026. I work on IBM Cloud's network overlay, and I spend most of my free time on compilers, debuggers, databases, and parallel systems.

currentlyCloud Engineer, IBM Cloud Network Overlay
C0L1·L2C1L1·L2C2L1·L2C3L1·L2L3 / LLCSHAREDKERNELsyscalls · page faults · ioDRAM~80 nsNVMe~100 µsCACHE MISS → KERNEL → NVME4 CORES / 3 LEVELS
Four cores, their private caches, the shared last level, and the path down to memory and disk.