#Memory
9 posts in tag “Memory”.
Memory Allocation and Garbage Collection: How Programs Manage Memory
2025-02-20A deep dive into how programming languages allocate, track, and reclaim memory. Understand malloc internals, garbage collection algorithms, and the trade-offs that shape runtime performance.
Tuning CUDA with the GPU Memory Hierarchy
2024-11-27Global, shared, and register memory each have distinct latency and bandwidth. Performance comes from the right access pattern.
Memory Allocators: From malloc to Modern Arena Allocators
2023-09-14A deep dive into memory allocation strategies, from the classic malloc implementations to modern arena allocators, jemalloc, tcmalloc, and custom allocators that power high-performance systems.
Garbage Collection Algorithms: From Mark-and-Sweep to ZGC
2022-11-22A comprehensive exploration of garbage collection algorithms, from classic mark-and-sweep to modern concurrent collectors like G1, Shenandoah, and ZGC. Learn how automatic memory management works and the trade-offs that shape collector design.
CPU Caches and Cache Coherence: The Memory Hierarchy That Makes Modern Computing Fast
2022-07-12A comprehensive exploration of how CPU caches bridge the processor-memory speed gap. Learn about cache architecture, replacement policies, coherence protocols, and how to write cache-friendly code for maximum performance.
Virtual Memory and Page Tables: How Operating Systems Manage Memory
2021-08-12A comprehensive exploration of virtual memory systems, page tables, address translation, and the hardware-software collaboration that enables modern multitasking. Understand TLBs, page faults, and memory protection.
CPU Caches and Memory Hierarchy: The Hidden Architecture Behind Performance
2021-06-22A deep exploration of CPU cache architecture, from L1 to L3 caches, cache lines, associativity, replacement policies, and cache coherence. Learn how memory hierarchy shapes modern software performance.
Cache‑Friendly Data Layouts: AoS vs. SoA (and the Hybrid In‑Between)
2021-03-18How memory layout choices shape the performance of your hot loops. A practical guide to arrays‑of‑structs, struct‑of‑arrays, and hybrid layouts across CPUs and GPUs.
Speculative Prefetchers: Designing Memory Systems That Read the Future
2019-02-14A field guide to building and validating speculative memory prefetchers that anticipate demand in modern CPUs and data platforms.