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89 lines
2.1 KiB
89 lines
2.1 KiB
# system call top |
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# (c) 2010, Tom Zanussi <[email protected]> |
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# Licensed under the terms of the GNU GPL License version 2 |
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# |
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# Periodically displays system-wide system call totals, broken down by |
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# syscall. If a [comm] arg is specified, only syscalls called by |
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# [comm] are displayed. If an [interval] arg is specified, the display |
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# will be refreshed every [interval] seconds. The default interval is |
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# 3 seconds. |
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from __future__ import print_function |
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import os, sys, time |
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try: |
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import thread |
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except ImportError: |
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import _thread as thread |
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sys.path.append(os.environ['PERF_EXEC_PATH'] + \ |
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'/scripts/python/Perf-Trace-Util/lib/Perf/Trace') |
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from perf_trace_context import * |
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from Core import * |
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from Util import * |
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usage = "perf script -s sctop.py [comm] [interval]\n"; |
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for_comm = None |
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default_interval = 3 |
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interval = default_interval |
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if len(sys.argv) > 3: |
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sys.exit(usage) |
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if len(sys.argv) > 2: |
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for_comm = sys.argv[1] |
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interval = int(sys.argv[2]) |
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elif len(sys.argv) > 1: |
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try: |
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interval = int(sys.argv[1]) |
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except ValueError: |
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for_comm = sys.argv[1] |
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interval = default_interval |
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syscalls = autodict() |
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def trace_begin(): |
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thread.start_new_thread(print_syscall_totals, (interval,)) |
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pass |
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def raw_syscalls__sys_enter(event_name, context, common_cpu, |
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common_secs, common_nsecs, common_pid, common_comm, |
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common_callchain, id, args): |
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if for_comm is not None: |
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if common_comm != for_comm: |
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return |
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try: |
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syscalls[id] += 1 |
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except TypeError: |
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syscalls[id] = 1 |
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def syscalls__sys_enter(event_name, context, common_cpu, |
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common_secs, common_nsecs, common_pid, common_comm, |
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id, args): |
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raw_syscalls__sys_enter(**locals()) |
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def print_syscall_totals(interval): |
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while 1: |
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clear_term() |
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if for_comm is not None: |
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print("\nsyscall events for %s:\n" % (for_comm)) |
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else: |
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print("\nsyscall events:\n") |
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print("%-40s %10s" % ("event", "count")) |
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print("%-40s %10s" % |
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("----------------------------------------", |
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"----------")) |
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for id, val in sorted(syscalls.items(), |
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key = lambda kv: (kv[1], kv[0]), |
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reverse = True): |
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try: |
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print("%-40s %10d" % (syscall_name(id), val)) |
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except TypeError: |
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pass |
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syscalls.clear() |
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time.sleep(interval)
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