read_smaps.py

import collections
import sys
import pprint


class Entry:
    pass


def load_file(filename):
    entries = {}
    with open(filename) as smaps:
        entry = None
        for line in smaps:
            if len(line) >= 32:
                if entry is not None:
                    entries[entry.name] = entry
                entry = Entry()
                elements = line.split()
                entry.name = elements[-1].strip()
                entry.header = line.strip()
                entry.values = {}
            else:
                key, value = line.split(":", 2)
                entry.values[key] = value.strip()
    return entries


def map_entries(entries):
    result = {}
    for name, e in entries.items():
        rss = int(e.values["Rss"].strip(" kB"))
        result[name] = rss
    return result


def main():
    entries = {}
    for filename in sys.argv[1:]:
        old_entries = entries
        entries = load_file(filename)
        rsses = sorted(map_entries(entries).items(), key=lambda t: t[1], reverse=True)

        print(filename, ":", len(rsses), "entries, top 5:", rsses[:5])


if __name__ == "__main__":
    main()