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  /system/core/metricsd/
metrics_collector_test.cc 145 const uint64_t zero_pages = 10 * 1000 * 1000 / page_size; local
154 temp_dir_.path().Append(MetricsCollector::kZeroPagesName), zero_pages);
156 const uint64_t real_orig_size = orig_data_size + zero_pages * page_size;
158 zero_pages * page_size * 100 / real_orig_size;
166 EXPECT_CALL(metrics_lib_, SendToUMA(_, zero_pages, _, _, _));
metrics_collector.cc 81 const char MetricsCollector::kZeroPagesName[] = "zero_pages";
421 // Data sizes are in bytes. |zero_pages| is in number of pages.
422 uint64_t compr_data_size, orig_data_size, zero_pages; local
428 !ReadFileToUint64(zram_dir.Append(kZeroPagesName), &zero_pages)) {
433 orig_data_size += zero_pages * page_size;
437 const int zero_ratio_percent = zero_pages * page_size * 100 / orig_data_size;
449 // The values of interest for zero_pages are between 1MB and 1GB. The units
451 SendSample("Platform.ZramZeroPages", zero_pages, 256, 256 * 1024, 50);

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