diff options
| -rw-r--r-- | net/disk_cache/backend_impl.cc | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/net/disk_cache/backend_impl.cc b/net/disk_cache/backend_impl.cc index b2527ec..05094a0 100644 --- a/net/disk_cache/backend_impl.cc +++ b/net/disk_cache/backend_impl.cc @@ -1977,7 +1977,14 @@ void BackendImpl::ReportStats() { int current_size = data_->header.num_bytes / (1024 * 1024); int max_size = max_size_ / (1024 * 1024); + int hit_ratio_as_percentage = stats_.GetHitRatio(); + CACHE_UMA(COUNTS_10000, "Size2", 0, current_size); + // For any bin in HitRatioBySize2, the hit ratio of caches of that size is the + // ratio of that bin's total count to the count in the same bin in the Size2 + // histogram. + if (base::RandInt(0, 99) < hit_ratio_as_percentage) + CACHE_UMA(COUNTS_10000, "HitRatioBySize2", 0, current_size); CACHE_UMA(COUNTS_10000, "MaxSize2", 0, max_size); if (!max_size) max_size++; @@ -2013,6 +2020,11 @@ void BackendImpl::ReportStats() { // that event, start reporting this: CACHE_UMA(HOURS, "TotalTime", 0, static_cast<int>(total_hours)); + // For any bin in HitRatioByTotalTime, the hit ratio of caches of that total + // time is the ratio of that bin's total count to the count in the same bin in + // the TotalTime histogram. + if (base::RandInt(0, 99) < hit_ratio_as_percentage) + CACHE_UMA(HOURS, "HitRatioByTotalTime", 0, implicit_cast<int>(total_hours)); int64 use_hours = stats_.GetCounter(Stats::LAST_REPORT_TIMER) / 120; stats_.SetCounter(Stats::LAST_REPORT_TIMER, stats_.GetCounter(Stats::TIMER)); @@ -2026,16 +2038,12 @@ void BackendImpl::ReportStats() { return; CACHE_UMA(HOURS, "UseTime", 0, static_cast<int>(use_hours)); - int hit_ratio_as_percentage = stats_.GetHitRatio(); - CACHE_UMA(PERCENTAGE, "HitRatio", 0, hit_ratio_as_percentage); - - // For any bin in HitRatioByTotalTime, the HitRatio of caches of that age is - // approximately the value of HitRatioByTotalTime / TotalTime. Likewise for - // HitRatioByUseTime. - if (base::RandInt(0, 99) < hit_ratio_as_percentage) - CACHE_UMA(HOURS, "HitRatioByTotalTime", 0, implicit_cast<int>(total_hours)); + // For any bin in HitRatioByUseTime, the hit ratio of caches of that use time + // is the ratio of that bin's total count to the count in the same bin in the + // UseTime histogram. if (base::RandInt(0, 99) < hit_ratio_as_percentage) CACHE_UMA(HOURS, "HitRatioByUseTime", 0, implicit_cast<int>(use_hours)); + CACHE_UMA(PERCENTAGE, "HitRatio", 0, hit_ratio_as_percentage); int64 trim_rate = stats_.GetCounter(Stats::TRIM_ENTRY) / use_hours; CACHE_UMA(COUNTS, "TrimRate", 0, static_cast<int>(trim_rate)); |