| // Copyright 2021 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_DEVICES_SYSMEM_DRIVERS_SYSMEM_SYSMEM_METRICS_H_ |
| #define SRC_DEVICES_SYSMEM_DRIVERS_SYSMEM_SYSMEM_METRICS_H_ |
| |
| #include <lib/sys/cpp/service_directory.h> |
| |
| #include <src/lib/metrics_buffer/metrics_buffer.h> |
| |
| #include <src/devices/sysmem/metrics/metrics.cb.h> |
| |
| namespace sys { |
| class ServiceDirectory; |
| } // namespace sys |
| |
| class SysmemMetrics { |
| public: |
| SysmemMetrics(); |
| cobalt::MetricsBuffer& metrics_buffer(); |
| |
| void LogUnusedPageCheck(sysmem_metrics::UnusedPageCheckMetricDimensionEvent event); |
| void LogUnusedPageCheckCounts(uint32_t succeeded_count, uint32_t failed_count); |
| |
| // This is called once a close_weak_asap (per-buffer_index) has taken 5s (so far), regardless of |
| // whether all the weak VMOs are ever closed after that. |
| void LogCloseWeakAsapTakingTooLong(); |
| // This is called only once all weak VMOs (per-buffer_index) have been closed. If they're never |
| // actually closed, this is never called (in contrast to LogCloseWeakAsapTakingTooLong). |
| void LogCloseWeakAsapDuration(zx::duration duration); |
| |
| private: |
| std::shared_ptr<cobalt::MetricsBuffer> metrics_buffer_; |
| cobalt::MetricBuffer unused_page_check_; |
| cobalt::MetricBuffer weak_vmo_events_; |
| cobalt::HistogramMetricBuffer weak_vmo_histograms_; |
| |
| static constexpr zx::duration kUnusedPageCheckFlushSuccessPeriod = zx::min(30); |
| uint64_t unused_page_check_pending_success_count_ = 0; |
| zx::time unused_page_check_last_flush_time_ = zx::time::infinite_past(); |
| }; |
| |
| #endif // SRC_DEVICES_SYSMEM_DRIVERS_SYSMEM_SYSMEM_METRICS_H_ |