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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/nacl/renderer/histogram.h"
#include <algorithm>
#include "base/metrics/histogram.h"
#include "build/build_config.h"
namespace nacl {
void HistogramCustomCounts(const std::string& name,
int32_t sample,
int32_t min,
int32_t max,
uint32_t bucket_count) {
base::HistogramBase* counter =
base::Histogram::FactoryGet(
name,
min,
max,
bucket_count,
base::HistogramBase::kUmaTargetedHistogramFlag);
// The histogram can be NULL if it is constructed with bad arguments. Ignore
// that data for this API. An error message will be logged.
if (counter)
counter->Add(sample);
}
void HistogramEnumerate(const std::string& name,
int32_t sample,
int32_t boundary_value) {
base::HistogramBase* counter =
base::LinearHistogram::FactoryGet(
name,
1,
boundary_value,
boundary_value + 1,
base::HistogramBase::kUmaTargetedHistogramFlag);
counter->Add(sample);
}
void HistogramEnumerateLoadStatus(PP_NaClError error_code,
bool is_installed) {
HistogramEnumerate("NaCl.LoadStatus.Plugin", error_code, PP_NACL_ERROR_MAX);
// Gather data to see if being installed changes load outcomes.
const char* name = is_installed ?
"NaCl.LoadStatus.Plugin.InstalledApp" :
"NaCl.LoadStatus.Plugin.NotInstalledApp";
HistogramEnumerate(name, error_code, PP_NACL_ERROR_MAX);
}
void HistogramEnumerateOsArch(const std::string& sandbox_isa) {
enum NaClOSArch {
kNaClLinux32 = 0,
kNaClLinux64,
kNaClLinuxArm,
kNaClMac32,
kNaClMac64,
kNaClMacArm,
kNaClWin32,
kNaClWin64,
kNaClWinArm,
kNaClLinuxMips,
kNaClOSArchMax
};
NaClOSArch os_arch = kNaClOSArchMax;
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
os_arch = kNaClLinux32;
#endif
if (sandbox_isa == "x86-64")
os_arch = static_cast<NaClOSArch>(os_arch + 1);
if (sandbox_isa == "arm")
os_arch = static_cast<NaClOSArch>(os_arch + 2);
if (sandbox_isa == "mips32")
os_arch = kNaClLinuxMips;
HistogramEnumerate("NaCl.Client.OSArch", os_arch, kNaClOSArchMax);
}
// Records values up to 20 seconds.
void HistogramTimeSmall(const std::string& name, int64_t sample) {
if (sample < 0)
sample = 0;
base::HistogramBase* counter = base::Histogram::FactoryTimeGet(
name, base::Milliseconds(1), base::Milliseconds(20000), 100,
base::HistogramBase::kUmaTargetedHistogramFlag);
if (counter)
counter->AddTime(base::Milliseconds(sample));
}
// Records values up to 3 minutes, 20 seconds.
void HistogramTimeMedium(const std::string& name, int64_t sample) {
if (sample < 0)
sample = 0;
base::HistogramBase* counter = base::Histogram::FactoryTimeGet(
name, base::Milliseconds(10), base::Milliseconds(200000), 100,
base::HistogramBase::kUmaTargetedHistogramFlag);
if (counter)
counter->AddTime(base::Milliseconds(sample));
}
// Records values up to 33 minutes.
void HistogramTimeLarge(const std::string& name, int64_t sample) {
if (sample < 0)
sample = 0;
base::HistogramBase* counter = base::Histogram::FactoryTimeGet(
name, base::Milliseconds(100), base::Milliseconds(2000000), 100,
base::HistogramBase::kUmaTargetedHistogramFlag);
if (counter)
counter->AddTime(base::Milliseconds(sample));
}
// Records values up to 12 minutes.
void HistogramTimeTranslation(const std::string& name, int64_t sample_ms) {
if (sample_ms < 0)
sample_ms = 0;
base::HistogramBase* counter = base::Histogram::FactoryTimeGet(
name, base::Milliseconds(10), base::Milliseconds(720000), 100,
base::HistogramBase::kUmaTargetedHistogramFlag);
if (counter)
counter->AddTime(base::Milliseconds(sample_ms));
}
void HistogramStartupTimeSmall(const std::string& name,
base::TimeDelta td,
int64_t nexe_size) {
HistogramTimeSmall(name, static_cast<int64_t>(td.InMilliseconds()));
if (nexe_size > 0) {
float size_in_MB = static_cast<float>(nexe_size) / (1024.f * 1024.f);
HistogramTimeSmall(name + "PerMB",
static_cast<int64_t>(td.InMilliseconds() / size_in_MB));
}
}
void HistogramStartupTimeMedium(const std::string& name,
base::TimeDelta td,
int64_t nexe_size) {
HistogramTimeMedium(name, static_cast<int64_t>(td.InMilliseconds()));
if (nexe_size > 0) {
float size_in_MB = static_cast<float>(nexe_size) / (1024.f * 1024.f);
HistogramTimeMedium(name + "PerMB",
static_cast<int64_t>(td.InMilliseconds() / size_in_MB));
}
}
void HistogramSizeKB(const std::string& name, int32_t sample) {
if (sample < 0) return;
HistogramCustomCounts(name,
sample,
1,
512 * 1024, // A very large .nexe.
100);
}
void HistogramHTTPStatusCode(const std::string& name,
int32_t status) {
// Log the status codes in rough buckets - 1XX, 2XX, etc.
int sample = status / 100;
// HTTP status codes only go up to 5XX, using "6" to indicate an internal
// error.
// Note: installed files may have "0" for a status code.
if (status < 0 || status >= 600)
sample = 6;
HistogramEnumerate(name, sample, 7);
}
void HistogramEnumerateManifestIsDataURI(bool is_data_uri) {
HistogramEnumerate("NaCl.Manifest.IsDataURI", is_data_uri, 2);
}
void HistogramKBPerSec(const std::string& name, int64_t kb, int64_t us) {
if (kb < 0 || us <= 0) return;
static const double kMaxRate = 30 * 1000.0; // max of 30MB/sec.
int32_t rate = std::min(kb / (us / 1000000.0), kMaxRate);
HistogramCustomCounts(name,
rate,
1,
30 * 1000, // max of 30 MB/sec.
100);
}
void HistogramRatio(const std::string& name,
int64_t numerator,
int64_t denominator) {
static const int32_t kRatioMin = 10;
static const int32_t kRatioMax = 10 * 100; // max of 10x difference.
static const uint32_t kRatioBuckets = 100;
if (numerator < 0 || denominator <= 0)
return;
HistogramCustomCounts(name,
static_cast<int32_t>(100 * numerator / denominator),
kRatioMin, kRatioMax, kRatioBuckets);
}
} // namespace nacl
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