Dynamically adjusting the tcmalloc memory release rate at runtime based on total system memory usage. When memory usage exceeds 80% or 90% of system capacity, we increase the rate at which tcmalloc releases unused memory to the OS. This strategy helps in:

• Reducing resident memory usage (RSS)

• Mitigating fragmentation issues often seen 

• Preventing Out-Of-Memory (OOM) crashes caused by tcmalloc holding fragmented memory

By tuning the release behavior based on real-time usage, we can improve system stability without compromising performance under normal load.

void adjustReleaseRate() {
    size_t heap = 0;
    MallocExtension::instance()->GetNumericProperty("generic.heap_size", &heap);
    struct sysinfo info;
    sysinfo(&info);
    double usage = (double)heap / (info.totalram * info.mem_unit);
    MallocExtension::SetMemoryReleaseRate(usage > 0.8 ? 20.0 : 1.0);
}