x/stacktach
Code Issues Proposed changes

97 percentile and median

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Sandy Walsh 2013-02-25 18:41:44 +00:00 committed by root
parent 1ff0e44392
commit 0c7cc64622
1 changed files with 15 additions and 13 deletions
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28
reports/pretty.py
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@ -13,7 +13,7 @@ from stacktach import image_type
from stacktach import models
def make_report(yesterday=None, start_hour=0, hours=24, percentile=90,
def make_report(yesterday=None, start_hour=0, hours=24, percentile=97,
store=False, region=None):
if not yesterday:
yesterday = datetime.datetime.utcnow().date() - \
@ -149,7 +149,7 @@ def make_report(yesterday=None, start_hour=0, hours=24, percentile=90,
report.append(details)
failure_types = ["4xx", "5xx", "> 60", "state"]
cols = ["Operation", "Image", "Min*", "Max*", "Avg*",
cols = ["Operation", "Image", "Min", "Max", "Med", "%d%%" % percentile,
"Requests"]
for failure_type in failure_types:
cols.append("%s" % failure_type)
@ -178,10 +178,6 @@ def make_report(yesterday=None, start_hour=0, hours=24, percentile=90,
# N-th % of durations ...
_values = durations[key]
_values.sort()
_outliers = int(float(len(_values)) * pct)
if _outliers > 0:
before = len(_values)
_values = _values[_outliers:-_outliers]
_min = 99999999
_max = 0
_total = 0.0
@ -189,12 +185,20 @@ def make_report(yesterday=None, start_hour=0, hours=24, percentile=90,
_min = min(_min, value)
_max = max(_max, value)
_total += float(value)
_avg = float(_total) / float(len(_values))
_num = len(_values)
_avg = float(_total) / float(_num)
half = _num / 2
_median = _values[half]
_percentile_index = int((float(percentile) / 100.0) * float(_num))
_percentile = _values[_percentile_index]
_fmin = dt.sec_to_str(_min)
_fmax = dt.sec_to_str(_max)
_favg = dt.sec_to_str(_avg)
_fmedian = dt.sec_to_str(_median)
_fpercentile = dt.sec_to_str(_percentile)
row = [operation, image, _fmin, _fmax, _favg, count]
row = [operation, image, _fmin, _fmax, _fmedian, _fpercentile, count]
for failure_count, failure_percentage in this_failure_pair:
row.append(failure_count)
row.append(failure_percentage)
@ -237,7 +241,7 @@ if __name__ == '__main__':
help='Starting hour 0-23. Default: 0', default=0,
type=int)
parser.add_argument('--percentile',
help='Percentile for timings. Default: 90', default=90,
help='Percentile for timings. Default: 97', default=97,
type=int)
parser.add_argument('--store',
help='Store report in database. Default: False',
@ -268,7 +272,7 @@ if __name__ == '__main__':
'created': dt.dt_to_decimal(datetime.datetime.utcnow()),
'period_start': start,
'period_end': end,
'version': 2,
'version': 3,
'name': 'summary for region: %s' % region_name}
report = models.JsonReport(**values)
report.save()
@ -287,11 +291,9 @@ if __name__ == '__main__':
p.align[c] = 'r'
p.sortby = cols[0]
print "* Using %d-th percentile for results (+/-%.1f%% cut)" % \
(percentile, pct * 100.0)
for row in raw_report[2:]:
frow = row[:]
for col in [7, 9, 11]:
for col in [8, 10, 12, 14]:
frow[col] = "%.1f%%" % (row[col] * 100.0)
p.add_row(frow)
print p