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authorMike Frysinger <vapier@gentoo.org>2013-03-25 08:26:40 -0400
committerSteve Dickson <steved@redhat.com>2013-03-25 10:09:12 -0400
commitb9ca017c0d0c425b7a5d22738e3e4e3fff63d44a (patch)
tree445947ebf52a1cacb6ce590ed515390e58951262
parentebe2826ca571a3959c3b5c8e29686c621f2775cf (diff)
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nfsiostat: make it work w/python3
Simple fixes here to work with python 2 & 3: - use print() everywhere - dict.iteritems() -> dict.items() - file() -> open() - sys.maxint -> sys.maxsize Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Steve Dickson <steved@redhat.com>
-rw-r--r--tools/nfs-iostat/nfs-iostat.py130
1 files changed, 66 insertions, 64 deletions
diff --git a/tools/nfs-iostat/nfs-iostat.py b/tools/nfs-iostat/nfs-iostat.py
index d909632..dfbef87 100644
--- a/tools/nfs-iostat/nfs-iostat.py
+++ b/tools/nfs-iostat/nfs-iostat.py
@@ -3,6 +3,8 @@
"""Emulate iostat for NFS mount points using /proc/self/mountstats
"""
+from __future__ import print_function
+
__copyright__ = """
Copyright (C) 2005, Chuck Lever <cel@netapp.com>
@@ -201,9 +203,9 @@ class DeviceData:
result = DeviceData()
# copy self into result
- for key, value in self.__nfs_data.iteritems():
+ for key, value in self.__nfs_data.items():
result.__nfs_data[key] = value
- for key, value in self.__rpc_data.iteritems():
+ for key, value in self.__rpc_data.items():
result.__rpc_data[key] = value
# compute the difference of each item in the list
@@ -233,9 +235,9 @@ class DeviceData:
client_bytes_read = float(nfs_stats['serverreadbytes'] - nfs_stats['directreadbytes'])
ratio = ((app_bytes_read - client_bytes_read) * 100) / app_bytes_read
- print
- print 'app bytes: %f client bytes %f' % (app_bytes_read, client_bytes_read)
- print 'Data cache hit ratio: %4.2f%%' % ratio
+ print()
+ print('app bytes: %f client bytes %f' % (app_bytes_read, client_bytes_read))
+ print('Data cache hit ratio: %4.2f%%' % ratio)
def __print_attr_cache_stats(self, sample_time):
"""Print attribute cache efficiency stats
@@ -255,13 +257,13 @@ class DeviceData:
data_invalidates = float(nfs_stats['datainvalidates'])
attr_invalidates = float(nfs_stats['attrinvalidates'])
- print
- print '%d inode revalidations, hitting in cache %4.2f%% of the time' % \
- (revalidates, ratio)
- print '%d open operations (mandatory GETATTR requests)' % opens
+ print()
+ print('%d inode revalidations, hitting in cache %4.2f%% of the time' % \
+ (revalidates, ratio))
+ print('%d open operations (mandatory GETATTR requests)' % opens)
if getattr_ops != 0:
- print '%4.2f%% of GETATTRs resulted in data cache invalidations' % \
- ((data_invalidates * 100) / getattr_ops)
+ print('%4.2f%% of GETATTRs resulted in data cache invalidations' % \
+ ((data_invalidates * 100) / getattr_ops))
def __print_dir_cache_stats(self, sample_time):
"""Print directory stats
@@ -277,13 +279,13 @@ class DeviceData:
lookups = nfs_stats['vfslookup']
getdents = nfs_stats['vfsreaddir']
- print
- print '%d open operations (pathname lookups)' % opens
- print '%d dentry revalidates and %d vfs lookup requests' % \
- (dentry_revals, lookups),
- print 'resulted in %d LOOKUPs on the wire' % lookup_ops
- print '%d vfs getdents calls resulted in %d READDIRs on the wire' % \
- (getdents, readdir_ops)
+ print()
+ print('%d open operations (pathname lookups)' % opens)
+ print('%d dentry revalidates and %d vfs lookup requests' % \
+ (dentry_revals, lookups))
+ print('resulted in %d LOOKUPs on the wire' % lookup_ops)
+ print('%d vfs getdents calls resulted in %d READDIRs on the wire' % \
+ (getdents, readdir_ops))
def __print_page_stats(self, sample_time):
"""Print page cache stats
@@ -297,33 +299,33 @@ class DeviceData:
vfswritepages = nfs_stats['vfswritepages']
pages_written = nfs_stats['writepages']
- print
- print '%d nfs_readpage() calls read %d pages' % \
- (vfsreadpage, vfsreadpage)
- print '%d nfs_readpages() calls read %d pages' % \
- (vfsreadpages, pages_read - vfsreadpage),
+ print()
+ print('%d nfs_readpage() calls read %d pages' % \
+ (vfsreadpage, vfsreadpage))
+ print('%d nfs_readpages() calls read %d pages' % \
+ (vfsreadpages, pages_read - vfsreadpage))
if vfsreadpages != 0:
- print '(%.1f pages per call)' % \
- (float(pages_read - vfsreadpage) / vfsreadpages)
+ print('(%.1f pages per call)' % \
+ (float(pages_read - vfsreadpage) / vfsreadpages))
else:
- print
-
- print
- print '%d nfs_updatepage() calls' % nfs_stats['vfsupdatepage']
- print '%d nfs_writepage() calls wrote %d pages' % \
- (vfswritepage, vfswritepage)
- print '%d nfs_writepages() calls wrote %d pages' % \
- (vfswritepages, pages_written - vfswritepage),
+ print()
+
+ print()
+ print('%d nfs_updatepage() calls' % nfs_stats['vfsupdatepage'])
+ print('%d nfs_writepage() calls wrote %d pages' % \
+ (vfswritepage, vfswritepage))
+ print('%d nfs_writepages() calls wrote %d pages' % \
+ (vfswritepages, pages_written - vfswritepage))
if (vfswritepages) != 0:
- print '(%.1f pages per call)' % \
- (float(pages_written - vfswritepage) / vfswritepages)
+ print('(%.1f pages per call)' % \
+ (float(pages_written - vfswritepage) / vfswritepages))
else:
- print
+ print()
congestionwaits = nfs_stats['congestionwait']
if congestionwaits != 0:
- print
- print '%d congestion waits' % congestionwaits
+ print()
+ print('%d congestion waits' % congestionwaits)
def __print_rpc_op_stats(self, op, sample_time):
"""Print generic stats for one RPC op
@@ -351,15 +353,15 @@ class DeviceData:
exe_per_op = 0.0
op += ':'
- print '%s' % op.lower().ljust(15),
- print ' ops/s\t\t kB/s\t\t kB/op\t\tretrans\t\tavg RTT (ms)\tavg exe (ms)'
+ print('%s' % op.lower().ljust(15))
+ print(' ops/s\t\t kB/s\t\t kB/op\t\tretrans\t\tavg RTT (ms)\tavg exe (ms)')
- print '\t\t%7.3f' % (ops / sample_time),
- print '\t%7.3f' % (kilobytes / sample_time),
- print '\t%7.3f' % kb_per_op,
- print ' %7d (%3.1f%%)' % (retrans, retrans_percent),
- print '\t%7.3f' % rtt_per_op,
- print '\t%7.3f' % exe_per_op
+ print('\t\t%7.3f' % (ops / sample_time))
+ print('\t%7.3f' % (kilobytes / sample_time))
+ print('\t%7.3f' % kb_per_op)
+ print(' %7d (%3.1f%%)' % (retrans, retrans_percent))
+ print('\t%7.3f' % rtt_per_op)
+ print('\t%7.3f' % exe_per_op)
def ops(self, sample_time):
sends = float(self.__rpc_data['rpcsends'])
@@ -384,14 +386,14 @@ class DeviceData:
else:
backlog = 0.0
- print
- print '%s mounted on %s:' % \
- (self.__nfs_data['export'], self.__nfs_data['mountpoint'])
- print
+ print()
+ print('%s mounted on %s:' % \
+ (self.__nfs_data['export'], self.__nfs_data['mountpoint']))
+ print()
- print ' op/s\t\trpc bklog'
- print '%7.2f' % (sends / sample_time),
- print '\t%7.2f' % backlog
+ print(' op/s\t\trpc bklog')
+ print('%7.2f' % (sends / sample_time))
+ print('\t%7.2f' % backlog)
if which == 0:
self.__print_rpc_op_stats('READ', sample_time)
@@ -424,7 +426,7 @@ def parse_stats_file(filename):
ms_dict = dict()
key = ''
- f = file(filename)
+ f = open(filename)
for line in f.readlines():
words = line.split()
if len(words) == 0:
@@ -494,7 +496,7 @@ def list_nfs_mounts(givenlist, mountstats):
if stats.is_nfs_mountpoint():
list += [device]
else:
- for device, descr in mountstats.iteritems():
+ for device, descr in mountstats.items():
stats = DeviceData()
stats.parse_stats(descr)
if stats.is_nfs_mountpoint():
@@ -527,7 +529,7 @@ client are listed.
usage="usage: %prog [ <interval> [ <count> ] ] [ <options> ] [ <mount point> ]",
description=mydescription,
version='version %s' % Iostats_version)
- parser.set_defaults(which=0, sort=False, list=sys.maxint)
+ parser.set_defaults(which=0, sort=False, list=sys.maxsize)
statgroup = OptionGroup(parser, "Statistics Options",
'File I/O is displayed unless one of the following is specified:')
@@ -572,29 +574,29 @@ client are listed.
try:
interval = int(arg)
except:
- print 'Illegal <interval> value %s' % arg
+ print('Illegal <interval> value %s' % arg)
return
if interval > 0:
interval_seen = True
else:
- print 'Illegal <interval> value %s' % arg
+ print('Illegal <interval> value %s' % arg)
return
elif not count_seen:
try:
count = int(arg)
except:
- print 'Ilegal <count> value %s' % arg
+ print('Ilegal <count> value %s' % arg)
return
if count > 0:
count_seen = True
else:
- print 'Illegal <count> value %s' % arg
+ print('Illegal <count> value %s' % arg)
return
# make certain devices contains only NFS mount points
devices = list_nfs_mounts(origdevices, mountstats)
if len(devices) == 0:
- print 'No NFS mount points were found'
+ print('No NFS mount points were found')
return
@@ -616,7 +618,7 @@ client are listed.
# we need to recheck the devices list when reparsing
devices = list_nfs_mounts(origdevices,mountstats)
if len(devices) == 0:
- print 'No NFS mount points were found'
+ print('No NFS mount points were found')
return
count -= 1
else:
@@ -630,7 +632,7 @@ client are listed.
# we need to recheck the devices list when reparsing
devices = list_nfs_mounts(origdevices,mountstats)
if len(devices) == 0:
- print 'No NFS mount points were found'
+ print('No NFS mount points were found')
return
#
@@ -641,7 +643,7 @@ prog = os.path.basename(sys.argv[0])
try:
iostat_command(prog)
except KeyboardInterrupt:
- print 'Caught ^C... exiting'
+ print('Caught ^C... exiting')
sys.exit(1)
sys.exit(0)