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###########################################################
# Main function:
# -----------------
# self: self plugin object
# mself: memphis object / principal class
# pinfo: row with information about current tracing process
############################################################
def plg_on_top_data_refresh(self, pinfo):
PI = self.INTERNALS['Plg'].proc
pid = pinfo['pid']
# Get JIFFIES CPU usage
used_jiffies = pinfo['utime'] + pinfo['stime']
last_ujiffies = get_pid_ujiffies(self, pid)
cpu_usage = PI.get_CPU_usage(self.cpu_hz, used_jiffies, pinfo['start_time'])
# Get PERCENT CPU usage
if last_ujiffies == 0.0:
pcpu = 0.0
set_pid_ujiffies(self, pid, cpu_usage['used_jiffies'])
data = [int(pcpu)]
return data
used_jiffies = cpu_usage['used_jiffies'] - last_ujiffies
# Available jiffies are
avail_jiffies = (500/1000.0)*self.cpu_hz # 500 = 0.5 second
pcpu = ((used_jiffies*100)/avail_jiffies)
set_pid_ujiffies(self, pid, cpu_usage['used_jiffies'])
data = [int(pcpu)]
return data
def get_pid_ujiffies(self, pid):
if pid in self.pids_ujiffies:
return self.pids_ujiffies[pid]
else:
set_pid_ujiffies(self, pid, 0)
return self.pids_ujiffies[pid]
def set_pid_ujiffies(self, pid, ujiffies):
self.pids_ujiffies[pid] = ujiffies
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