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authorMarkus Lehtonen <markus.lehtonen@linux.intel.com>2016-09-29 17:28:04 +0300
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-09-30 17:14:11 +0100
commit75292a1de1a59e19198d26b7c1291004a5ca92f3 (patch)
tree2a1ecc0042f79a84b31c6c40026c59df8b0a635e /scripts
parent24a12e40caeb05dac13c417f35733761af219f03 (diff)
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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. Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/buildstats-diff27
1 files changed, 24 insertions, 3 deletions
diff --git a/scripts/buildstats-diff b/scripts/buildstats-diff
index 3c894cbbe1..c6fa803445 100755
--- a/scripts/buildstats-diff
+++ b/scripts/buildstats-diff
@@ -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. "