-#!/usr/bin/env python
+#!/usr/bin/env python3
# module to parse fio histogram log files, not using pandas
# runs in python v2 or v3
import sys, os, math, copy, time
from copy import deepcopy
import argparse
+from functools import reduce
unittest2_imported = True
try:
except ValueError as e:
raise FioHistoLogExc('non-integer value %s' % exception_suffix(k+1, logfn))
- neg_ints = list(filter( lambda tk : tk < 0, int_tokens ))
+ neg_ints = list([tk for tk in int_tokens if tk < 0])
if len(neg_ints) > 0:
raise FioHistoLogExc('negative integer value %s' % exception_suffix(k+1, logfn))
for b in range(0, len(source)):
target[b] += source[b]
+
+# calculate total samples in the histogram buckets
+
+def get_samples(buckets):
+ return reduce( lambda x,y: x + y, buckets)
+
+
# compute percentiles
# inputs:
# buckets: histogram bucket array
# calculate percentiles across aggregate histogram for all threads
# print CSV header just like fiologparser_hist does
- header = 'msec-since-start, '
+ header = 'msec-since-start, samples, '
for p in args.pctiles_wanted:
- header += '%3.1f, ' % p
+ if p == 0.:
+ next_pctile_header = 'min'
+ elif p == 100.:
+ next_pctile_header = 'max'
+ elif p == 50.:
+ next_pctile_header = 'median'
+ else:
+ next_pctile_header = '%3.1f' % p
+ header += '%s, ' % next_pctile_header
+
print('time (millisec), percentiles in increasing order with values in ' + args.output_unit)
print(header)
for (t_msec, all_threads_histo_t) in all_threads_histograms:
- record = '%8d, ' % t_msec
+ samples = get_samples(all_threads_histo_t)
+ record = '%8d, %8d, ' % (t_msec, samples)
pct = get_pctiles(all_threads_histo_t, args.pctiles_wanted, bucket_times)
if not pct:
for w in args.pctiles_wanted:
def test_e2_get_pctiles_highest_pct(self):
fio_v3_bucket_count = 29 * 64
with open(self.fn, 'w') as f:
- # make a empty fio v3 histogram
+ # make an empty fio v3 histogram
buckets = [ 0 for j in range(0, fio_v3_bucket_count) ]
# add one I/O request to last bucket
buckets[-1] = 1