[deliverable/lttng-analyses.git] / lttnganalyses / core / memtop.py

# The MIT License (MIT)
#
# Copyright (C) 2015 - Antoine Busque <abusque@efficios.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

from . import stats
from .analysis import Analysis


class Memtop(Analysis):
    def __init__(self, state, conf):
        notification_cbs = {
            'tid_page_alloc': self._process_tid_page_alloc,
            'tid_page_free': self._process_tid_page_free
        }

        super().__init__(state, conf)
        self._state.register_notification_cbs(notification_cbs)

        self.tids = {}

    def reset(self):
        for tid in self.tids:
            self.tids[tid].reset()

    def _process_tid_page_alloc(self, **kwargs):
        cpu_id = kwargs['cpu_id']
        proc = kwargs['proc']

        if not self._filter_process(proc):
            return
        if not self._filter_cpu(cpu_id):
            return

        tid = proc.tid
        if tid not in self.tids:
            self.tids[tid] = ProcessMemStats.new_from_process(proc)

        self.tids[tid].allocated_pages += 1

    def _process_tid_page_free(self, **kwargs):
        cpu_id = kwargs['cpu_id']
        proc = kwargs['proc']

        if not self._filter_process(proc):
            return
        if not self._filter_cpu(cpu_id):
            return

        tid = proc.tid
        if tid not in self.tids:
            self.tids[tid] = ProcessMemStats.new_from_process(proc)

        self.tids[tid].freed_pages += 1


class ProcessMemStats(stats.Process):
    def __init__(self, pid, tid, comm):
        super().__init__(pid, tid, comm)

        self.allocated_pages = 0
        self.freed_pages = 0

    def reset(self):
        self.allocated_pages = 0
        self.freed_pages = 0
Commit	Line	Data
4ed24f86 JD	1	# The MIT License (MIT)
4ed24f86 JD	2	#
39fec005	3	# Copyright (C) 2015 - Antoine Busque <abusque@efficios.com>
4ed24f86 JD	4	#
	5	# Permission is hereby granted, free of charge, to any person obtaining a copy
	6	# of this software and associated documentation files (the "Software"), to deal
	7	# in the Software without restriction, including without limitation the rights
	8	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	9	# copies of the Software, and to permit persons to whom the Software is
	10	# furnished to do so, subject to the following conditions:
	11	#
	12	# The above copyright notice and this permission notice shall be included in
	13	# all copies or substantial portions of the Software.
	14	#
	15	# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	18	# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	20	# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	21	# SOFTWARE.
	22
6f89f629	23	from . import stats
4e99adc5 JD	24	from .analysis import Analysis
	25
	26
	27	class Memtop(Analysis):
b6d9132b	28	def __init__(self, state, conf):
39fec005 AB	29	notification_cbs = {
	30	'tid_page_alloc': self._process_tid_page_alloc,
	31	'tid_page_free': self._process_tid_page_free
	32	}
	33
b6d9132b	34	super().__init__(state, conf)
39fec005	35	self._state.register_notification_cbs(notification_cbs)
4e99adc5	36
b6d9132b	37	self.tids = {}
b5db5706 AB	38
b5db5706 AB	39	def reset(self):
39fec005 AB	40	for tid in self.tids:
	41	self.tids[tid].reset()
	42
	43	def _process_tid_page_alloc(self, **kwargs):
a621ba35	44	cpu_id = kwargs['cpu_id']
39fec005	45	proc = kwargs['proc']
a621ba35	46
43b66dd6 AB	47	if not self._filter_process(proc):
43b66dd6 AB	48	return
a621ba35 AB	49	if not self._filter_cpu(cpu_id):
a621ba35 AB	50	return
43b66dd6	51
39fec005 AB	52	tid = proc.tid
	53	if tid not in self.tids:
	54	self.tids[tid] = ProcessMemStats.new_from_process(proc)
	55
	56	self.tids[tid].allocated_pages += 1
	57
	58	def _process_tid_page_free(self, **kwargs):
a621ba35	59	cpu_id = kwargs['cpu_id']
39fec005	60	proc = kwargs['proc']
a621ba35	61
43b66dd6 AB	62	if not self._filter_process(proc):
43b66dd6 AB	63	return
a621ba35 AB	64	if not self._filter_cpu(cpu_id):
a621ba35 AB	65	return
43b66dd6	66
39fec005 AB	67	tid = proc.tid
	68	if tid not in self.tids:
	69	self.tids[tid] = ProcessMemStats.new_from_process(proc)
	70
	71	self.tids[tid].freed_pages += 1
	72
4e3662f1	73
6f89f629	74	class ProcessMemStats(stats.Process):
39fec005	75	def __init__(self, pid, tid, comm):
6f89f629 AB	76	super().__init__(pid, tid, comm)
6f89f629 AB	77
39fec005 AB	78	self.allocated_pages = 0
	79	self.freed_pages = 0
	80
39fec005 AB	81	def reset(self):
	82	self.allocated_pages = 0
	83	self.freed_pages = 0