Minor code cleanups in arc_python.py

Remove unused library re and associated variable kstat_pobj. Add note
to documentation at start of program about required support for old
versions of Python. Change variable "format" (which is a built-in
function) to "fmt".

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Scot W. Stevenson <scot.stevenson@gmail.com>
Closes #6869
This commit is contained in:
Scot W. Stevenson 2017-11-15 19:28:11 +01:00 committed by Brian Behlendorf
parent 454365bbaa
commit e301113c17

View File

@ -31,6 +31,10 @@
#
# If you are having troubles when using this script from cron(8) please try
# adjusting your PATH before reporting problems.
#
# Note some of this code uses older code (eg getopt instead of argparse,
# subprocess.Popen() instead of subprocess.run()) because we need to support
# some very old versions of Python.
"""Print statistics on the ZFS Adjustable Replacement Cache (ARC)
Provides basic information on the ARC, its efficiency, the L2ARC (if present),
@ -41,7 +45,6 @@ https://github.com/zfsonlinux/zfs/blob/master/module/zfs/arc.c for details.
import getopt
import os
import re
import sys
import time
@ -50,7 +53,6 @@ from decimal import Decimal as D
show_tunable_descriptions = False
alternate_tunable_layout = False
kstat_pobj = re.compile("^([^:]+):\s+(.+)\s*$", flags=re.M)
def get_Kstat():
@ -911,9 +913,9 @@ def _tunable_summary(Kstat):
names.sort()
if alternate_tunable_layout:
format = "\t%s=%s\n"
fmt = "\t%s=%s\n"
else:
format = "\t%-50s%s\n"
fmt = "\t%-50s%s\n"
for name in names:
@ -923,7 +925,7 @@ def _tunable_summary(Kstat):
if show_tunable_descriptions and name in descriptions:
sys.stdout.write("\t# %s\n" % descriptions[name])
sys.stdout.write(format % (name, values[name]))
sys.stdout.write(fmt % (name, values[name]))
unSub = [