commit ed520c485a7bcd4ad9f1b1c3e4288b35303fae2e Author: juga0 juga@riseup.net Date: Tue Oct 16 12:52:55 2018 +0000

Add function to obtain percentage measured relays --- sbws/globals.py | 1 + sbws/lib/v3bwfile.py | 23 ++++++++++++++++++++--- 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/sbws/globals.py b/sbws/globals.py index 52c31bf..9ac30d1 100644 --- a/sbws/globals.py +++ b/sbws/globals.py @@ -40,6 +40,7 @@ TORFLOW_OBS_DECAYING = 3 TORFLOW_ROUND_DIG = 3 DAY_SECS = 86400 NUM_MIN_RESULTS = 2 +MIN_REPORT = 60

BW_LINE_SIZE = 510

diff --git a/sbws/lib/v3bwfile.py b/sbws/lib/v3bwfile.py index 4eecda6..58056b1 100644 --- a/sbws/lib/v3bwfile.py +++ b/sbws/lib/v3bwfile.py @@ -6,12 +6,13 @@ import copy import logging import os from statistics import median, mean +from stem.descriptor import parse_file

from sbws import __version__ from sbws.globals import (SPEC_VERSION, BW_LINE_SIZE, SBWS_SCALE_CONSTANT, TORFLOW_SCALING, SBWS_SCALING, TORFLOW_BW_MARGIN, TORFLOW_OBS_LAST, TORFLOW_OBS_MEAN, - TORFLOW_ROUND_DIG) + TORFLOW_ROUND_DIG, MIN_REPORT) from sbws.lib.resultdump import ResultSuccess, _ResultType from sbws.util.filelock import DirectoryLock from sbws.util.timestamp import (now_isodt_str, unixts_to_isodt_str, @@ -65,6 +66,22 @@ def result_type_to_key(type_str): return type_str.replace('-', '_')

+def is_min_percent_measured(consensus_path): + """""" + # cached-consensus should be updated every time that scanner get the + # network status or descriptors? + # It will not be updated to the last consensus, but the list of measured + # relays is not either. + descs = parse_file(consensus_path) + num_relays_net = len(list(descs)) + if num_relays_net * MIN_REPORT / 100: + log.warning('The percentage of the measured relays is less than the %s' + '%% of the relays in the network (%s).', + MIN_REPORT, num_relays_net) + return False + return True + + class V3BWHeader(object): """ Create a bandwidth measurements (V3bw) header @@ -700,7 +717,7 @@ class V3BWFile(object): All of that can be expressed as:

.. math:: - + bwn_i &= max\left( \frac{bw_i}{\mu}, @@ -724,7 +741,7 @@ class V3BWFile(object): \right)} \right) \times bwobs_i \ - + &= max\left( \frac{bw_i}{\frac{\sum_{i=1}^{n}bw_i}{n}},