| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 |
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| 6 | from __future__ import division
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| 7 | from __future__ import print_function
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| 8 |
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| 9 | import os
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| 10 | import sys
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| 11 | import struct
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| 12 | import re
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| 13 | import bisect
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| 14 | import collections
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| 15 |
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| 16 | sys.path.append(os.environ['PERF_EXEC_PATH'] + \
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| 17 | '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
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| 18 |
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| 19 | |
| 20 | system_ram = []
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| 21 | |
| 22 | pmem = []
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| 23 | |
| 24 | f = None
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| 25 | |
| 26 | load_mem_type_cnt = collections.Counter()
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| 27 | |
| 28 | event_name = None
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| 29 |
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| 30 | def parse_iomem():
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| 31 | global f
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| 32 | f = open('/proc/iomem', 'r')
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| 33 | for i, j in enumerate(f):
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| 34 | m = re.split('-|:',j,2)
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| 35 | if m[2].strip() == 'System RAM':
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| 36 | system_ram.append(int(m[0], 16))
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| 37 | system_ram.append(int(m[1], 16))
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| 38 | if m[2].strip() == 'Persistent Memory':
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| 39 | pmem.append(int(m[0], 16))
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| 40 | pmem.append(int(m[1], 16))
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| 41 |
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| 42 | def print_memory_type():
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| 43 | print("Event: %s" % (event_name))
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| 44 | print("%-40s %10s %10s\n" % ("Memory type", "count", "percentage"), end='')
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| 45 | print("%-40s %10s %10s\n" % ("----------------------------------------",
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| 46 | "-----------", "-----------"),
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| 47 | end='');
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| 48 | total = sum(load_mem_type_cnt.values())
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| 49 | for mem_type, count in sorted(load_mem_type_cnt.most_common(), \
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| 50 | key = lambda kv: (kv[1], kv[0]), reverse = True):
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| 51 | print("%-40s %10d %10.1f%%\n" %
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| 52 | (mem_type, count, 100 * count / total),
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| 53 | end='')
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| 54 |
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| 55 | def trace_begin():
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| 56 | parse_iomem()
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| 57 |
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| 58 | def trace_end():
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| 59 | print_memory_type()
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| 60 | f.close()
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| 61 |
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| 62 | def is_system_ram(phys_addr):
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| 63 | |
| 64 | position = bisect.bisect(system_ram, phys_addr)
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| 65 | if position % 2 == 0:
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| 66 | return False
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| 67 | return True
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| 68 |
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| 69 | def is_persistent_mem(phys_addr):
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| 70 | position = bisect.bisect(pmem, phys_addr)
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| 71 | if position % 2 == 0:
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| 72 | return False
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| 73 | return True
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| 74 |
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| 75 | def find_memory_type(phys_addr):
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| 76 | if phys_addr == 0:
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| 77 | return "N/A"
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| 78 | if is_system_ram(phys_addr):
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| 79 | return "System RAM"
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| 80 |
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| 81 | if is_persistent_mem(phys_addr):
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| 82 | return "Persistent Memory"
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| 83 |
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| 84 | |
| 85 | f.seek(0, 0)
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| 86 | for j in f:
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| 87 | m = re.split('-|:',j,2)
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| 88 | if int(m[0], 16) <= phys_addr <= int(m[1], 16):
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| 89 | return m[2]
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| 90 | return "N/A"
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| 91 |
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| 92 | def process_event(param_dict):
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| 93 | name = param_dict["ev_name"]
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| 94 | sample = param_dict["sample"]
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| 95 | phys_addr = sample["phys_addr"]
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| 96 |
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| 97 | global event_name
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| 98 | if event_name == None:
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| 99 | event_name = name
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| 100 | load_mem_type_cnt[find_memory_type(phys_addr)] += 1
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