晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Directory :  /lib/python3.6/site-packages/sos/report/plugins/

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Current File : //lib/python3.6/site-packages/sos/report/plugins/bcache.py
# Copyright (C) 2021, Canonical ltd
# Ponnuvel Palaniyappan <ponnuvel.palaniyappan@canonical.com>

# This file is part of the sos project: https://github.com/sosreport/sos
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# version 2 of the GNU General Public License.
#
# See the LICENSE file in the source distribution for further information.

from sos.report.plugins import Plugin, IndependentPlugin, SoSPredicate


class Bcache(Plugin, IndependentPlugin):

    short_desc = 'Bcache statistics'

    plugin_name = 'bcache'
    profiles = ('storage', 'hardware')
    files = ('/sys/fs/bcache',)

    def setup(self):

        # Caution: reading /sys/fs/bcache/*/cache0/priority_stats is known
        # to degrade performance on old kernels. Needs care if that's ever
        # considered for inclusion here.
        # see: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840043
        self.add_forbidden_path([
            '/sys/fs/bcache/*/*/priority_stats',
        ])

        self.add_copy_spec([
            '/sys/block/bcache*/bcache/cache/internal/copy_gc_enabled',
            '/sys/block/bcache*/bcache/cache_mode',
            '/sys/block/bcache*/bcache/dirty_data',
            '/sys/block/bcache*/bcache/io_errors',
            '/sys/block/bcache*/bcache/sequential_cutoff',
            '/sys/block/bcache*/bcache/stats_hour/bypassed',
            '/sys/block/bcache*/bcache/stats_hour/cache_hit_ratio',
            '/sys/block/bcache*/bcache/stats_hour/cache_hits',
            '/sys/block/bcache*/bcache/stats_hour/cache_misses',
            '/sys/block/bcache*/bcache/writeback_percent',
            '/sys/fs/bcache/*/average_key_size',
            '/sys/fs/bcache/*/bdev*/*',
            '/sys/fs/bcache/*/bdev*/stat_*/*',
            '/sys/fs/bcache/*/block_size',
            '/sys/fs/bcache/*/bucket_size',
            '/sys/fs/bcache/*/cache_available_percent',
            '/sys/fs/bcache/*/congested_*_threshold_us',
            '/sys/fs/bcache/*/internal/*',
            '/sys/fs/bcache/*/stats_*/*',
            '/sys/fs/bcache/*/tree_depth',
        ], pred=SoSPredicate(self, kmods=['bcache']))

# vim: set et ts=4 sw=4 :

haha - 2025