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scripts/buildstats-diff: add read_ops and write_ops to --diff-attr 

Two new options, making it possible to compare the number of filesystem
operations of tasks. Defaults for --min-val and --min-absdiff are set to
more or less arbitrary 500 and 50 operations, respectively.

(From OE-Core rev: 75292a1de1a59e19198d26b7c1291004a5ca92f3)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Markus Lehtonen 2016-09-29 17:28:04 +03:00 committed by Richard Purdie
parent 44bc3f47a3
commit c6047cd989
1 changed files with 24 additions and 3 deletions
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scripts/buildstats-diff
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@ -88,6 +88,17 @@ class BSTask(dict):
"""Bytes written to the block layer"""
return self['iostat']['write_bytes']
@property
def read_ops(self):
"""Number of read operations on the block layer"""
return self['rusage']['ru_inblock'] + self['child_rusage']['ru_inblock']
@property
def write_ops(self):
"""Number of write operations on the block layer"""
return self['rusage']['ru_oublock'] + self['child_rusage']['ru_oublock']
def read_buildstats_file(buildstat_file):
"""Convert buildstat text file into dict/json"""
bs_task = BSTask()
@ -306,6 +317,12 @@ def print_task_diff(bs1, bs2, val_type, min_val=0, min_absdiff=0, sort_by=('absd
prec = 1 if dec > 0 else 0
return "{:.{prec}f}{}B".format(val / (2 ** (10 * dec)),
prefix[dec], prec=prec)
elif 'ops' in val_type and human_readable:
prefix = ['', 'k', 'M', 'G', 'T', 'P']
dec = int(math.log(val, 1000))
prec = 1 if dec > 0 else 0
return "{:.{prec}f}{}ops".format(val / (1000 ** dec),
prefix[dec], prec=prec)
return str(int(val))
def sum_vals(buildstats):
@ -418,17 +435,21 @@ Script for comparing buildstats of two separate builds."""
min_val_defaults = {'cputime': 3.0,
'read_bytes': 524288,
'write_bytes': 524288}
'write_bytes': 524288,
'read_ops': 500,
'write_ops': 500}
min_absdiff_defaults = {'cputime': 1.0,
'read_bytes': 131072,
'write_bytes': 131072}
'write_bytes': 131072,
'read_ops': 50,
'write_ops': 50}
parser.add_argument('--debug', '-d', action='store_true',
help="Verbose logging")
parser.add_argument('--ver-diff', action='store_true',
help="Show package version differences and exit")
parser.add_argument('--diff-attr', default='cputime',
choices=('cputime', 'read_bytes', 'write_bytes'),
choices=min_val_defaults.keys(),
help="Buildstat attribute which to compare")
parser.add_argument('--min-val', default=min_val_defaults, type=float,
help="Filter out tasks less than MIN_VAL. "