214   std::vector<MapPageCounts> stats;  in CountZeroPages()  local
228     stats.push_back(std::move(map_page_counts));  in CountZeroPages()
243   const auto print_stats = [&stats, &os](size_t max_lines) {  in CountZeroPages()
244     for (const MapPageCounts& map_page_counts : stats) {  in CountZeroPages()
277   const size_t top_lines = std::min(size_t{20}, stats.size());  in CountZeroPages()
279       std::begin(stats), std::begin(stats) + top_lines, std::end(stats), sort_by_unique_zero_pages);  in CountZeroPages()
284   std::partial_sort(std::begin(stats),  in CountZeroPages()
285                     std::begin(stats) + top_lines,  in CountZeroPages()
286                     std::end(stats),  in CountZeroPages()
293       std::begin(stats), std::begin(stats) + top_lines, std::end(stats), sort_by_shared_zero_pages);  in CountZeroPages()
298   std::sort(std::begin(stats), std::end(stats), sort_by_unique_zero_pages);  in CountZeroPages()
300   print_stats(stats.size());  in CountZeroPages()