void KillMemoryGrowth::ologKillTarget()

in src/oomd/plugins/KillMemoryGrowth-inl.h [149:195]
43 lines of code
5 McCabe index (conditional complexity)

void KillMemoryGrowth<Base>::ologKillTarget(
    OomdContext& ctx,
    const CgroupContext& target,
    const std::vector<OomdContext::ConstCgroupContextRef>& peers) {
  auto rank_cgroup = get_ranking_fn(ctx, peers);

  int64_t sib_memcurrent = 0;
  for (const CgroupContext& cgroup_ctx : peers) {
    sib_memcurrent += cgroup_ctx.current_usage().value_or(0);
  }

  switch (rank_cgroup(target).first) {
    case KMGPhase::SIZE_THRESHOLD: {
      OLOG << "Picked \"" << target.cgroup().relativePath() << "\" ("
           << target.current_usage().value_or(0) / 1024 / 1024
           << "MB) based on size > " << size_threshold_ << "% of sibling total "
           << sib_memcurrent / 1024 / 1024 << "MB"
           << " with kill preference "
           << target.kill_preference().value_or(KillPreference::NORMAL);
      break;
    }

    case KMGPhase::GROWTH: {
      std::ostringstream oss;
      oss << std::setprecision(2) << std::fixed;
      oss << "Picked \"" << target.cgroup().relativePath() << "\" ("
          << target.current_usage().value_or(0) / 1024 / 1024
          << "MB) based on growth rate " << target.memory_growth().value_or(0)
          << " (min growth rate " << min_growth_ratio_ << ")"
          << " among P" << growing_size_percentile_ << " largest,"
          << " with kill preference "
          << target.kill_preference().value_or(KillPreference::NORMAL);
      OLOG << oss.str();
      break;
    }

    case KMGPhase::SIZE_NO_THRESHOLD: {
      OLOG << "Picked \"" << target.cgroup().relativePath() << "\" ("
           << target.current_usage().value_or(0) / 1024 / 1024
           << "MB) based on effective usage of "
           << target.effective_usage().value_or(0) << "MB"
           << " with kill preference "
           << target.kill_preference().value_or(KillPreference::NORMAL);
      break;
    }
  }
}