Reduce metadata memory overhead by switching extent selection to first-fit policy
Reduce metadata memory overhead by switching extent selection to first-fit policy: a task in LegoFlow-SWE (Harbor dataset). Under workloads that allocate many large objects (e.g., 6 KB each) and later replace them with tiny objects (e.g., 50 bytes), jemalloc exhibits excessive metadata memory…
The task
Under workloads that allocate many large objects (e.g., 6 KB each) and later replace them with tiny objects (e.g., 50 bytes), jemalloc exhibits excessive metadata memory overhead. After purging unused pages, metadata can account for roughly 70 % of the total resident memory. Profiling indicates that the virtual…
Part of Lego-X/LegoFlow-SWE.