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syntax = "proto3";
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package envoy.admin.v2alpha;
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import "udpa/annotations/status.proto";
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option java_package = "io.envoyproxy.envoy.admin.v2alpha";
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option java_outer_classname = "MutexStatsProto";
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option java_multiple_files = true;
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option (udpa.annotations.file_status).package_version_status = FROZEN;
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// [#protodoc-title: MutexStats]
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// Proto representation of the statistics collected upon absl::Mutex contention, if Envoy is run
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// under :option:`--enable-mutex-tracing`. For more information, see the `absl::Mutex`
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// [docs](https://abseil.io/about/design/mutex#extra-features).
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//
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// *NB*: The wait cycles below are measured by `absl::base_internal::CycleClock`, and may not
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// correspond to core clock frequency. For more information, see the `CycleClock`
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// [docs](https://github.com/abseil/abseil-cpp/blob/master/absl/base/internal/cycleclock.h).
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message MutexStats {
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// The number of individual mutex contentions which have occurred since startup.
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uint64 num_contentions = 1;
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// The length of the current contention wait cycle.
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uint64 current_wait_cycles = 2;
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// The lifetime total of all contention wait cycles.
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uint64 lifetime_wait_cycles = 3;
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}
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