plog95/plog95.py
2022-08-07 18:13:17 +02:00

107 lines
2.7 KiB
Python

# Laurent GUERBY 20150728
# parse log-netdev-20120629.txt compute 95th centile 5mn
# python plog95.py b 0 eth0.2301 log-netdev-201506*.txt
import datetime
import sys
import re
import gzip
import lzma
def to_date(s):
dt=datetime.datetime.strptime(s,"%a %b %d %H:%M:%S %Z %Y")-datetime.datetime(1899,12,30)
return dt.days+(dt.seconds+dt.microseconds*1.0e-6)/86400.0
def to_datetime(xd):
return datetime.datetime(1900,1,1)+datetime.timedelta(xd)
b_or_p=sys.argv[1] # "b" or "p"
txrx=int(sys.argv[2]) # 0 for RX 1 for TX
iface95=sys.argv[3]
#=== Thu Jun 28 22:00:08 UTC 2012 ===
#Inter-| Receive | Transmit
# face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
# lo:2746879057 24561707 0 0 0 0 0 0 2746879057 24561707 0 0 0 0 0 0
# d[time][inter][byte/packet][rx/tx]
d={}
t_l=[]
for fname in sys.argv[4:]:
f=None
if fname.endswith(".xz"):
f=lzma.open(fname)
elif fname.endswith(".gz"):
f=gzip.open(fname)
else:
f=open(fname)
line_i=0
for l in f:
line_i+=1
if l.startswith("=== ") and l.endswith(" ===\n"):
t_s=to_date(l[4:-5])
d[t_s]={}
t_l.append(t_s)
elif l.startswith("Inter"):
pass
elif l.startswith(" face"):
pass
else:
try:
header,data=l[:-1].split(":")
except:
print l
print fname
print line_i
raise
iface=header.strip(" ")
if iface!=iface95: continue
bytes=[int(x) for x in re.findall(r'\w+', data)]
d[t_s][iface]={"b":[bytes[0],bytes[8]],"p":[bytes[1],bytes[9]]}
#print len(t_l)
iface_d={}
for t in t_l:
for i in d[t].iterkeys():
iface_d[i]=None
iface_l=iface_d.keys()
iface_l.sort()
#print len(iface_l)
#print "T,",",".join(iface_l)
prev={}
for i in iface_l:
prev[i]=None
t0=t_l[0]
tn0=0
mb_l=[]
for t in t_l:
tn=int(86400.0*(t-t0)/300.0)
if tn<=tn0 and t!=t0: continue
tn0=tn
s="%f"%t
for i in iface_l:
y=0
x=None
if d[t].has_key(i):
x=d[t][i][b_or_p][txrx]
if prev[i]!=None and x!=None:
y=x-prev[i]
if y<0.0: y=0
s+=",%d"%y
mbit_s=float(y)*8.0/300.0e6
if mbit_s>600.0: print to_datetime(t),mbit_s
if mbit_s>10000.0: mbit_s=0.0
mb_l.append(mbit_s)
prev[i]=x
#print s
mb_l.sort()
mb_n=len(mb_l)
print "nb",mb_n,"avg",sum(mb_l)/mb_n,"median",mb_l[mb_n/2],"90eme",mb_l[int(0.90*mb_n)],"95eme",mb_l[int(0.95*mb_n)],"max",mb_l[mb_n-1]