58 lines
2.3 KiB
Python
58 lines
2.3 KiB
Python
# Copyright 2013 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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from metrics import Metric
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class IOMetric(Metric):
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"""IO-related metrics, obtained via telemetry.core.Browser."""
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def Start(self, page, tab):
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raise NotImplementedError()
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def Stop(self, page, tab):
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raise NotImplementedError()
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def AddResults(self, tab, results):
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# This metric currently only returns summary results, not per-page results.
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raise NotImplementedError()
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def AddSummaryResults(self, tab, results):
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"""Add summary results to the results object."""
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io_stats = tab.browser.io_stats
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if not io_stats['Browser']:
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return
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def AddSummariesForProcessType(process_type_io, process_type_trace):
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"""For a given process type, add all relevant summary results.
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Args:
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process_type_io: Type of process (eg Browser or Renderer).
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process_type_trace: String to be added to the trace name in the results.
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"""
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if 'ReadOperationCount' in io_stats[process_type_io]:
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results.AddSummary('read_operations_' + process_type_trace, 'count',
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io_stats[process_type_io]
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['ReadOperationCount'],
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data_type='unimportant')
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if 'WriteOperationCount' in io_stats[process_type_io]:
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results.AddSummary('write_operations_' + process_type_trace, 'count',
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io_stats[process_type_io]
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['WriteOperationCount'],
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data_type='unimportant')
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if 'ReadTransferCount' in io_stats[process_type_io]:
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results.AddSummary('read_bytes_' + process_type_trace, 'kb',
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io_stats[process_type_io]
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['ReadTransferCount'] / 1024,
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data_type='unimportant')
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if 'WriteTransferCount' in io_stats[process_type_io]:
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results.AddSummary('write_bytes_' + process_type_trace, 'kb',
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io_stats[process_type_io]
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['WriteTransferCount'] / 1024,
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data_type='unimportant')
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AddSummariesForProcessType('Browser', 'browser')
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AddSummariesForProcessType('Renderer', 'renderer')
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AddSummariesForProcessType('Gpu', 'gpu')
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