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- # This file is part of pybootchartgui.
- # pybootchartgui is free software: you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation, either version 3 of the License, or
- # (at your option) any later version.
- # pybootchartgui is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- # You should have received a copy of the GNU General Public License
- # along with pybootchartgui. If not, see <http://www.gnu.org/licenses/>.
- class DiskStatSample:
- def __init__(self, time):
- self.time = time
- self.diskdata = [0, 0, 0]
- def add_diskdata(self, new_diskdata):
- self.diskdata = [ a + b for a, b in zip(self.diskdata, new_diskdata) ]
- class CPUSample:
- def __init__(self, time, user, sys, io = 0.0, swap = 0.0):
- self.time = time
- self.user = user
- self.sys = sys
- self.io = io
- self.swap = swap
- @property
- def cpu(self):
- return self.user + self.sys
- def __str__(self):
- return str(self.time) + "\t" + str(self.user) + "\t" + \
- str(self.sys) + "\t" + str(self.io) + "\t" + str (self.swap)
- class MemSample:
- used_values = ('MemTotal', 'MemFree', 'Buffers', 'Cached', 'SwapTotal', 'SwapFree',)
- def __init__(self, time):
- self.time = time
- self.records = {}
- def add_value(self, name, value):
- if name in MemSample.used_values:
- self.records[name] = value
- def valid(self):
- keys = self.records.keys()
- # discard incomplete samples
- return [v for v in MemSample.used_values if v not in keys] == []
- class DrawMemSample:
- """
- Condensed version of a MemSample with exactly the values used by the drawing code.
- Initialized either from a valid MemSample or
- a tuple/list of buffer/used/cached/swap values.
- """
- def __init__(self, mem_sample):
- self.time = mem_sample.time
- if isinstance(mem_sample, MemSample):
- self.buffers = mem_sample.records['MemTotal'] - mem_sample.records['MemFree']
- self.used = mem_sample.records['MemTotal'] - mem_sample.records['MemFree'] - mem_sample.records['Buffers']
- self.cached = mem_sample.records['Cached']
- self.swap = mem_sample.records['SwapTotal'] - mem_sample.records['SwapFree']
- else:
- self.buffers, self.used, self.cached, self.swap = mem_sample
- class DiskSpaceSample:
- def __init__(self, time):
- self.time = time
- self.records = {}
- def add_value(self, name, value):
- self.records[name] = value
- def valid(self):
- return bool(self.records)
- class ProcessSample:
- def __init__(self, time, state, cpu_sample):
- self.time = time
- self.state = state
- self.cpu_sample = cpu_sample
- def __str__(self):
- return str(self.time) + "\t" + str(self.state) + "\t" + str(self.cpu_sample)
- class ProcessStats:
- def __init__(self, writer, process_map, sample_count, sample_period, start_time, end_time):
- self.process_map = process_map
- self.sample_count = sample_count
- self.sample_period = sample_period
- self.start_time = start_time
- self.end_time = end_time
- writer.info ("%d samples, avg. sample length %f" % (self.sample_count, self.sample_period))
- writer.info ("process list size: %d" % len (self.process_map.values()))
- class Process:
- def __init__(self, writer, pid, cmd, ppid, start_time):
- self.writer = writer
- self.pid = pid
- self.cmd = cmd
- self.exe = cmd
- self.args = []
- self.ppid = ppid
- self.start_time = start_time
- self.duration = 0
- self.samples = []
- self.parent = None
- self.child_list = []
- self.active = None
- self.last_user_cpu_time = None
- self.last_sys_cpu_time = None
- self.last_cpu_ns = 0
- self.last_blkio_delay_ns = 0
- self.last_swapin_delay_ns = 0
- # split this process' run - triggered by a name change
- def split(self, writer, pid, cmd, ppid, start_time):
- split = Process (writer, pid, cmd, ppid, start_time)
- split.last_cpu_ns = self.last_cpu_ns
- split.last_blkio_delay_ns = self.last_blkio_delay_ns
- split.last_swapin_delay_ns = self.last_swapin_delay_ns
- return split
- def __str__(self):
- return " ".join([str(self.pid), self.cmd, str(self.ppid), '[ ' + str(len(self.samples)) + ' samples ]' ])
- def calc_stats(self, samplePeriod):
- if self.samples:
- firstSample = self.samples[0]
- lastSample = self.samples[-1]
- self.start_time = min(firstSample.time, self.start_time)
- self.duration = lastSample.time - self.start_time + samplePeriod
- activeCount = sum( [1 for sample in self.samples if sample.cpu_sample and sample.cpu_sample.sys + sample.cpu_sample.user + sample.cpu_sample.io > 0.0] )
- activeCount = activeCount + sum( [1 for sample in self.samples if sample.state == 'D'] )
- self.active = (activeCount>2)
- def calc_load(self, userCpu, sysCpu, interval):
- userCpuLoad = float(userCpu - self.last_user_cpu_time) / interval
- sysCpuLoad = float(sysCpu - self.last_sys_cpu_time) / interval
- cpuLoad = userCpuLoad + sysCpuLoad
- # normalize
- if cpuLoad > 1.0:
- userCpuLoad = userCpuLoad / cpuLoad
- sysCpuLoad = sysCpuLoad / cpuLoad
- return (userCpuLoad, sysCpuLoad)
- def set_parent(self, processMap):
- if self.ppid != None:
- self.parent = processMap.get (self.ppid)
- if self.parent == None and self.pid // 1000 > 1 and \
- not (self.ppid == 2000 or self.pid == 2000): # kernel threads: ppid=2
- self.writer.warn("Missing CONFIG_PROC_EVENTS: no parent for pid '%i' ('%s') with ppid '%i'" \
- % (self.pid,self.cmd,self.ppid))
- def get_end_time(self):
- return self.start_time + self.duration
- class DiskSample:
- def __init__(self, time, read, write, util):
- self.time = time
- self.read = read
- self.write = write
- self.util = util
- self.tput = read + write
- def __str__(self):
- return "\t".join([str(self.time), str(self.read), str(self.write), str(self.util)])
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