mirror of
https://github.com/facebook/sapling.git
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9a3fa8bd60
Summary: `eden stats` used to show system memory usage which was not very interesting (and can be gleaned from top). Instead read the contents of /proc/self/smaps and sum the Private_Dirty fields to get a number that more accurately reflects impact on the rest of the system. Reviewed By: wez Differential Revision: D6575595 fbshipit-source-id: 9badc5cd5a1b56d3ccb27edd1a2d20ee74ec34ae
106 lines
3.3 KiB
Python
106 lines
3.3 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (c) 2004-present, Facebook, Inc.
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# All rights reserved.
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#
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# This source code is licensed under the BSD-style license found in the
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# LICENSE file in the root directory of this source tree. An additional grant
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# of patent rights can be found in the PATENTS file in the same directory.
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# Helper function to print the heading of a Stat Call.
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from typing import TextIO
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def write_heading(heading: str, out: TextIO) -> None:
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border = '*' * len(heading)
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out.write(_center_strip_right(border, 80))
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out.write(_center_strip_right(heading, 80))
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out.write(_center_strip_right(border, 80) + '\n')
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def write_mem_status_table(fuse_counters, out: TextIO) -> None:
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format_str = '{:>40} {:^1} {:<20}'
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keys = [
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'memory_free', 'memory_free_percent', 'memory_usage',
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'memory_usage_percent'
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]
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for key in keys:
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if key.endswith('_percent'):
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value = '%d%s' % (fuse_counters[key], '%')
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else:
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value = '%f(GB)' % (fuse_counters[key] / (10**6))
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centered_text = format_str.format(key.replace('_', ' '), ':', value)
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out.write(centered_text.rstrip() + '\n')
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LATENCY_FORMAT_STR = '{:<12} {:^4} {:^10} {:>10} {:>15} {:>10} {:>10}\n'
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# Prints a record of latencies with 50'th,90'th and 99'th percentile.
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def write_latency_record(syscall: str, matrix, out: TextIO) -> None:
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border = '-' * 80
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percentile = {0: 'p50', 1: 'p90', 2: 'p99'}
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for i in range(len(percentile)):
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syscall_name = ''
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if i == int(len(percentile) / 2):
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syscall_name = syscall
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out.write(
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LATENCY_FORMAT_STR.format(
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syscall_name, '|', percentile[i], matrix[i][0], matrix[i][1],
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matrix[i][2], matrix[i][3]
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)
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)
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out.write(border + '\n')
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def write_latency_table(table, out: TextIO) -> None:
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out.write(
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LATENCY_FORMAT_STR.format(
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'SystemCall', '|', 'Percentile', 'Last Minute', 'Last 10 Minutes',
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'Last Hour', 'All Time'
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)
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)
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border = '-' * 80
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out.write(border + '\n')
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for key in table:
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write_latency_record(key, table[key], out)
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def write_table(table, heading: str, out: TextIO) -> None:
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key_width = max([len(heading)] + list(map(len, table.keys()))) + 2
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format_str = '{:<{}}{:>15}{:>15}{:>15}{:>15}\n'
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out.write(
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format_str.format(
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heading, key_width, 'Last Minute', 'Last 10m', 'Last Hour', 'All Time'
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)
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)
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border = '-' * (key_width + 60)
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out.write(border + '\n')
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for key in table:
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value = table[key]
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out.write(
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format_str.format(key, key_width, value[0], value[1], value[2], value[3])
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)
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def _center_strip_right(text: str, width: int) -> str:
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'''Returns a string with sufficient leading whitespace such that `text`
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would be centered within the specified `width` plus a trailing newline.'''
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space = (width - len(text)) // 2
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return space * ' ' + text + '\n'
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def format_size(size: int) -> str:
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if size > 1000000000:
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return '{:.1f} GB'.format(size / 1000000000)
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if size > 1000000:
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return '{:.1f} MB'.format(size / 1000000)
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if size > 1000:
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return '{:.1f} KB'.format(size / 1000)
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if size > 0:
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return '{} B'.format(size)
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return '0'
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