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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/interest_group/ad_auction_result_metrics.h"
#include "base/check_op.h"
#include "base/feature_list.h"
#include "base/metrics/histogram_functions.h"
#include "base/metrics/sparse_histogram.h"
#include "base/time/time.h"
#include "content/common/features.h"
#include "content/public/browser/page_user_data.h"
#include "third_party/blink/public/common/features.h"
namespace content {
class Page;
AdAuctionResultMetrics::AdAuctionResultMetrics(content::Page& page)
: PageUserData<AdAuctionResultMetrics>(page) {}
AdAuctionResultMetrics::~AdAuctionResultMetrics() {
if (num_completed_auctions_ <= 0)
return;
// Check that every non-skipped auction should complete (but skip the check if
// clamping may have occurred).
if (num_requested_auctions_ <
std::numeric_limits<decltype(num_requested_auctions_)::type>::max() &&
num_auctions_not_run_due_to_auction_limit_.RawValue() !=
(num_requested_auctions_ - num_completed_auctions_).RawValue()) {
// TODO(crbug.com/354735928): Add back removed DCHECK once the
// "RenderDocument on main frames" feature ships. In the meantime, if we're
// here, we've encountered racy page destruction, so metrics may be wrong.
// Don't report metrics in that case.
return;
}
base::UmaHistogramCounts100("Ads.InterestGroup.Auction.NumAuctionsPerPage",
num_completed_auctions_);
base::UmaHistogramPercentage(
"Ads.InterestGroup.Auction.PercentAuctionsSuccessfulPerPage",
num_successful_auctions_ * 100 / num_completed_auctions_);
DCHECK_GE(first_auction_bits_, 0b10u);
DCHECK_LE(first_auction_bits_, (1 << kNumFirstAuctionBits) - 1);
base::SparseHistogram::FactoryGet(
"Ads.InterestGroup.Auction.First6AuctionsBitsPerPage",
base::HistogramBase::kUmaTargetedHistogramFlag)
->Add(first_auction_bits_);
base::UmaHistogramCounts100(
"Ads.InterestGroup.Auction.NumAuctionsSkippedDueToAuctionLimit",
num_auctions_not_run_due_to_auction_limit_);
}
bool AdAuctionResultMetrics::ShouldRunAuction() {
num_requested_auctions_++;
if (!base::FeatureList::IsEnabled(features::kFledgeLimitNumAuctions))
return true;
if (num_requested_auctions_ > features::kFledgeLimitNumAuctionsParam.Get()) {
num_auctions_not_run_due_to_auction_limit_++;
return false;
}
return true;
}
void AdAuctionResultMetrics::ReportAuctionResult(
AdAuctionResultMetrics::AuctionResult result) {
num_completed_auctions_++;
if (num_completed_auctions_ < kNumFirstAuctionBits)
first_auction_bits_ <<= 1;
if (result == AdAuctionResultMetrics::AuctionResult::kSucceeded) {
num_successful_auctions_++;
if (num_completed_auctions_ < kNumFirstAuctionBits)
first_auction_bits_ |= 0x1;
}
const base::TimeTicks now = base::TimeTicks::Now();
const base::TimeDelta time_since_last_auction =
(last_auction_time_ == base::TimeTicks::Min()) ? base::TimeDelta::Max()
: now - last_auction_time_;
last_auction_time_ = now;
base::UmaHistogramLongTimes100(
"Ads.InterestGroup.Auction.TimeSinceLastAuctionPerPage",
time_since_last_auction);
}
PAGE_USER_DATA_KEY_IMPL(AdAuctionResultMetrics);
} // namespace content
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