Method checkResidentMemory

cachelib/allocator/MemoryMonitor.cpp:118–137

}

void MemoryMonitor::checkResidentMemory() {
  auto rss = static_cast<size_t>(facebook::cachelib::util::getRSSBytes());
  memRssSize_ = rss;
  rateLimiter_.addValue(rss);
  const auto stats = cache_.getCacheMemoryStats();
  if (rss > upperLimit_) {
    XLOGF(DBG,
          "Resident memory size of {} bytes is above the limit of {} bytes",
          rss,
          upperLimit_);
    adviseAwaySlabs();
  } else if (rss < lowerLimit_ && stats.numAdvisedSlabs() > 0) {
    XLOGF(DBG,
          "Resident memory size of {} bytes is below the limit of {} bytes",
          rss,
          lowerLimit_);
    reclaimSlabs();
  }
  checkPoolsAndAdviseReclaim();
}

namespace {
size_t bytesToSlabs(size_t bytes) { return bytes / Slab::kSize; }