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Reduce Route memory utilization by avoiding RuntimeData instances when not needed #24327

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merged 5 commits into from
Dec 8, 2022
Merged

Reduce Route memory utilization by avoiding RuntimeData instances when not needed #24327

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3f09f97
Reduce Route memory utilization by avoiding RuntimeData instances whe…
yurykats Dec 2, 2022
d351e45
Fix build break
yurykats Dec 2, 2022
bdd4a37
Merge branch 'envoyproxy:main' into config_memory_5
yurykats Dec 7, 2022
e9b910f
Merge branch 'envoyproxy:main' into config_memory_5
yurykats Dec 7, 2022
088c11d
Merge branch 'envoyproxy:main' into config_memory_5
yurykats Dec 7, 2022
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22 changes: 10 additions & 12 deletions source/common/router/config_impl.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -700,10 +700,11 @@ RouteEntryImplBase::RouteEntryImplBase(const VirtualHostImpl& vhost,
}

bool RouteEntryImplBase::evaluateRuntimeMatch(const uint64_t random_value) const {
return !runtime_ ? true
: loader_.snapshot().featureEnabled(runtime_->fractional_runtime_key_,
runtime_->fractional_runtime_default_,
random_value);
return runtime_ == nullptr
? true
: loader_.snapshot().featureEnabled(runtime_->fractional_runtime_key_,
runtime_->fractional_runtime_default_,
random_value);
}

absl::string_view
Expand Down Expand Up @@ -890,18 +891,15 @@ RouteEntryImplBase::getResponseHeaderParsers(bool specificity_ascend) const {
specificity_ascend);
}

absl::optional<RouteEntryImplBase::RuntimeData>
std::unique_ptr<const RouteEntryImplBase::RuntimeData>
RouteEntryImplBase::loadRuntimeData(const envoy::config::route::v3::RouteMatch& route_match) {
absl::optional<RuntimeData> runtime;
RuntimeData runtime_data;

if (route_match.has_runtime_fraction()) {
runtime_data.fractional_runtime_default_ = route_match.runtime_fraction().default_value();
runtime_data.fractional_runtime_key_ = route_match.runtime_fraction().runtime_key();
auto runtime_data = std::make_unique<RouteEntryImplBase::RuntimeData>();
runtime_data->fractional_runtime_default_ = route_match.runtime_fraction().default_value();
runtime_data->fractional_runtime_key_ = route_match.runtime_fraction().runtime_key();
return runtime_data;
}

return runtime;
return nullptr;
}

const std::string&
Expand Down
5 changes: 3 additions & 2 deletions source/common/router/config_impl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -967,7 +967,8 @@ class RouteEntryImplBase : public RouteEntryAndRoute,
absl::InlinedVector<const HeaderParser*, 3>
getResponseHeaderParsers(bool specificity_ascend) const;

absl::optional<RuntimeData> loadRuntimeData(const envoy::config::route::v3::RouteMatch& route);
std::unique_ptr<const RuntimeData>
loadRuntimeData(const envoy::config::route::v3::RouteMatch& route);

static std::multimap<std::string, std::string>
parseOpaqueConfig(const envoy::config::route::v3::Route& route);
Expand Down Expand Up @@ -1033,7 +1034,7 @@ class RouteEntryImplBase : public RouteEntryAndRoute,
const absl::optional<std::chrono::milliseconds> max_grpc_timeout_;
const absl::optional<std::chrono::milliseconds> grpc_timeout_offset_;
Runtime::Loader& loader_;
const absl::optional<RuntimeData> runtime_;
std::unique_ptr<const RuntimeData> runtime_;
const std::string scheme_redirect_;
const std::string host_redirect_;
const std::string port_redirect_;
Expand Down