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# SPDX-License-Identifier: GPL-2.0
"""
Print basic information of the access monitoring results record file.
"""
import argparse
import _damo_fmt_str
import _damo_records
class GuideInfo:
tid = None
start_time = None
end_time = None
lowest_addr = None
highest_addr = None
gaps = None
def __init__(self, tid, start_time):
self.tid = tid
self.start_time = start_time
self.gaps = []
def regions(self):
regions = []
region = [self.lowest_addr]
for gap in self.gaps:
for idx, point in enumerate(gap):
if idx == 0:
region.append(point)
regions.append(region)
else:
region = [point]
region.append(self.highest_addr)
regions.append(region)
return regions
def total_space(self):
ret = 0
for r in self.regions():
ret += r[1] - r[0]
return ret
def __str__(self):
lines = ['target_id:%d' % self.tid]
lines.append('time: %d-%d (%s)' % (self.start_time, self.end_time,
_damo_fmt_str.format_time_ns(self.end_time - self.start_time,
False)))
for idx, region in enumerate(self.regions()):
lines.append('region\t%2d: %020d-%020d (%s)' %
(idx, region[0], region[1],
_damo_fmt_str.format_sz(region[1] - region[0], False)))
return '\n'.join(lines)
def is_overlap(region1, region2):
if region1[1] < region2[0]:
return False
if region2[1] < region1[0]:
return False
return True
def overlap_region_of(region1, region2):
return [max(region1[0], region2[0]), min(region1[1], region2[1])]
def overlapping_regions(regions1, regions2):
overlap_regions = []
for r1 in regions1:
for r2 in regions2:
if is_overlap(r1, r2):
r1 = overlap_region_of(r1, r2)
if r1:
overlap_regions.append(r1)
return overlap_regions
def get_guide_info(records):
"return the set of guide information for the moitoring result"
guides = {}
for record in records:
for snapshot in record.snapshots:
monitor_time = snapshot.end_time
tid = record.target_id
if not tid in guides:
guides[tid] = GuideInfo(tid, monitor_time)
guide = guides[tid]
guide.end_time = monitor_time
last_addr = None
gaps = []
for r in snapshot.regions:
saddr = r.start
eaddr = r.end
if not guide.lowest_addr or saddr < guide.lowest_addr:
guide.lowest_addr = saddr
if not guide.highest_addr or eaddr > guide.highest_addr:
guide.highest_addr = eaddr
if not last_addr:
last_addr = eaddr
continue
if last_addr != saddr:
gaps.append([last_addr, saddr])
last_addr = eaddr
if not guide.gaps:
guide.gaps = gaps
else:
guide.gaps = overlapping_regions(guide.gaps, gaps)
return sorted(list(guides.values()), key=lambda x: x.total_space(),
reverse=True)
def pr_guide(records):
for guide in get_guide_info(records):
print(guide)
def main(args):
records, err = _damo_records.get_records(record_file=args.input)
if err != None:
print('monitoring result file (%s) parsing failed (%s)' %
(args.input, err))
exit(1)
pr_guide(records)
def set_argparser(parser):
parser.add_argument('--input', '-i', type=str, metavar='<file>',
default='damon.data', help='input file name')
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