55 lines
2.3 KiB
Plaintext
55 lines
2.3 KiB
Plaintext
# Copyright (c) 2012 Collabora Ltd. 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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NAME = "hardware_MultiReaderPowerConsumption"
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AUTHOR = "Vivia Nikolaidou <vivia.nikolaidou@collabora.co.uk>"
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PURPOSE = """Test card reader CPU power consumption to be within acceptable
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range while performing random r/w"""
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CRITERIA = """Fails if power consumption readings during heavy-duty random r/w
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fall outside predefined ranges"""
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TIME = "SHORT"
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TEST_CATEGORY = "Functional"
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TEST_CLASS = "hardware"
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TEST_TYPE = "client"
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DOC = """
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This test runs a heavy-duty random read/write test, which is defined as
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running a `dd if=/dev/urandom` in parallel with a `tail -f`. The test is
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run three times: once on a ramdisk with the SD card mounted, once on the
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SD card with the ramdisk unmounted, and once on the ramdisk with the SD
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card unmounted. Power consumption is measured after each test and then
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reported. Preconditions:
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1) User must not be logged on to the GUI
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2) An empty SD card must be inserted and formatted with a single mountable
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partition
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3) No other usb storage devices must be inserted.
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@param ramdisk_size: size of the ramdisk (integer in MiB).
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@param file_size: test file size (integer in MiB).
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@param ramdisk_path: path to the ramdisk mount point.
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@param fs_uuid: the UUID for the attached card. Use this parameter is
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autodetection does not work as expected.
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@param drain_limit: maximum ratio between the card reader energy consumption
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and each of the two ramdisk read/write test energy consumption values.
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1.00 means the card reader test may not consume more energy than either
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ramdisk test, 0.9 means it may consume no more than 90% of the ramdisk
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value, and so forth. default is 1.05.
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"""
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from autotest_lib.client.cros import storage as storage_mod
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volume_filter, args_dict = storage_mod.args_to_storage_dict(args)
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ramdisk_size = int(args_dict.get("ramdisk_size", 513)) # MiB
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file_size = int(args_dict.get("file_size", 512)) # MiB
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drain_limit = float(args_dict.get("drain_limit", 1.05))
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if not volume_filter:
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volume_filter = {"bus": "usb"}
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job.run_test("hardware_MultiReaderPowerConsumption",
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ramdisk_size=ramdisk_size,
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file_size=file_size,
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drain_limit=drain_limit,
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volume_filter=volume_filter)
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