sobering observation, python vs. perl
Charles T. Smith
cts.private.yahoo at gmail.com
Thu Mar 17 12:15:03 EDT 2016
On Thu, 17 Mar 2016 21:18:43 +0530, srinivas devaki wrote:
> please upload the log file,
Sorry, it's work stuff, can't do that, but just take any big set of files
and change the strings appropriately and the numbers should be equivalent.
>
> and global variables in python are slow, so just keep all that in a
> function and try again. generally i get 20-30% time improvement by
> doin that.
#!/usr/bin/env python
# vim: tw=0
import sys
import re
def faster ():
isready = re.compile ("(.*) is ready")
relreq = re.compile (".*release_req")
for fn in sys.argv[1:]: # logfile name
tn = None
with open (fn) as fd:
for line in fd:
#match = re.match ("(.*) is ready", line)
match = isready.match (line)
if match:
tn = match.group(1)
continue
#match = re.match (".*release_req", line)
match = relreq.match (line)
if match:
#print "%s: %s" % (tn, line),
print tn
faster()
$ time python ./find-relreq *.out | sort -u
TestCase_F_00_P
TestCase_F_00_S
TestCase_F_01_S
TestCase_F_02_M
real 0m25.515s
user 0m25.294s
sys 0m0.136s
3 more seconds!
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