commit f1c961089aec36c5e21d744d1051eddd2fcd0b5b Author: juga0 juga@riseup.net Date: Fri Aug 31 16:17:16 2018 +0000

Implement rounding to an opt num of digits --- sbws/lib/v3bwfile.py | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/sbws/lib/v3bwfile.py b/sbws/lib/v3bwfile.py index a94ee73..f74792b 100644 --- a/sbws/lib/v3bwfile.py +++ b/sbws/lib/v3bwfile.py @@ -9,8 +9,9 @@ from statistics import median, mean

from sbws import __version__ from sbws.globals import (SPEC_VERSION, BW_LINE_SIZE, SBWS_SCALE_CONSTANT, - SBWS_SCALING, TORFLOW_BW_MARGIN, TORFLOW_SCALING, - TORFLOW_OBS_LAST, TORFLOW_OBS_MEAN) + TORFLOW_SCALING, SBWS_SCALING, TORFLOW_BW_MARGIN, + TORFLOW_OBS_LAST, TORFLOW_OBS_MEAN, + TORFLOW_ROUND_DIG) 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 @@ -48,6 +49,12 @@ BW_KEYVALUES_INT = ['bw', 'rtt', 'success', 'error_stream', BW_KEYVALUES = BW_KEYVALUES_BASIC + BW_KEYVALUES_EXTRA

+def kb_round_x_sig_dig(bw_bs, digits=TORFLOW_ROUND_DIG): + """Convert bw to KB and round to x most significat digits.""" + bw_kb = bw_bs / 1000 + return max(int(round(bw_kb, -digits)), 1) + + def num_results_of_type(results, type_str): return len([r for r in results if r.type == type_str])

@@ -399,6 +406,7 @@ class V3BWFile(object): scale_constant=SBWS_SCALE_CONSTANT, scaling_method=None, torflow_obs=TORFLOW_OBS_LAST, torflow_cap=TORFLOW_BW_MARGIN, + torflow_round_digs=TORFLOW_ROUND_DIG, reverse=False): """Create V3BWFile class from sbws Results.

@@ -434,7 +442,7 @@ class V3BWFile(object): # log.debug(bw_lines[-1]) elif scaling_method == TORFLOW_SCALING: bw_lines = cls.bw_torflow_scale(bw_lines_raw, torflow_obs, - torflow_cap) + torflow_cap, torflow_round_digs) # log.debug(bw_lines[-1]) else: bw_lines = cls.bw_kb(bw_lines_raw) @@ -519,7 +527,8 @@ class V3BWFile(object):

@staticmethod def bw_torflow_scale(bw_lines, desc_obs_bws=TORFLOW_OBS_LAST, - cap=TORFLOW_BW_MARGIN, reverse=False): + cap=TORFLOW_BW_MARGIN, + num_round_dig=TORFLOW_ROUND_DIG, reverse=False): """ Obtain final bandwidth measurements applying Torflow's scaling method. @@ -699,11 +708,12 @@ class V3BWFile(object): elif desc_obs_bws == TORFLOW_OBS_MEAN: desc_obs_bw = l.desc_obs_bw_bs_mean # just applying the formula above: - bw_new = max( + bw_new = kb_round_x_sig_dig( + max( l.bw_bs_mean / mu, # ratio min(l.bw_bs_mean, mu) / muf # ratio filtered - ) * desc_obs_bw \ - / 1000 # convert to KB + ) * desc_obs_bw, \ + digits=num_round_dig) # convert to KB # Cap maximum bw if cap is not None: bw_new = min(hlimit, bw_new)