Bobby Sanabria is a 7-time Grammy-nominee as a leader. He is a noted drummer, percussionist, composer, arranger, conductor, producer, educator, documentary film maker, and bandleader of Puerto Rican descent born and raised in NY’s South Bronx. He was the drummer for the acknowledged creator of Afro-Cuban jazz, Mario Bauzá touring and recording three CD’s with him, two of which were Grammy nominated, as well as an incredible variety of artists. From Dizzy Gillespie, Tito Puente, Mongo Santamaria (with whom he started his career) Paquito D’Rivera, Yomo Toro, Candido, The Mills Brothers, Ray Barretto, Chico O’Farrill, Francisco Aguabella, Henry Threadgill, Luis “Perico” Ortiz, Daniel Ponce, Larry Harlow, Daniel Santos, Celia Cruz, Adalberto Santiago, Xiomara Portuondo, Pedrito Martinez, Roswell Rudd, Patato, David Amram, the Cleveland Jazz Orchestra, Michael Gibbs, Charles McPherson Jon Faddis, Bob Mintzer, Phil Wilson, Randy Brecker, Charles Tolliver, M’BOOM, Michelle Shocked, Marco Rizo, and many more. In addition he has guest conducted and performed as a soloist with numerous orchestras like the WDR Big Band, The Airmen of Note, The U.S. Jazz Ambassadors, Eau Claire University Big, The University of Calgary Big Band to name just a few.
His first big band recording, Live & in Clave!!! was nominated for a Grammy in 2001. A Grammy nomination followed in 2003 for 50 Years of Mambo: A Tribute to Perez Prado. His 2008 Grammy nominated Big Band Urban Folktales was the first Latin jazz recording to ever reach #1 on the national Jazz Week charts. In 2009 the Afro-Cuban Jazz Orchestra he directs at the Manhattan School of Music was nominated for a Latin Grammy for Kenya Revisited Live!!!, a reworking of the music from Machito’s greatest album, Kenya. In 2011 the recording Tito Puente Masterworks Live!!! by the same orchestra under Bobby’s direction was nominated for a Latin Jazz Grammy. Partial proceeds from the sale of both CD’s continue to support the scholarship program in the Manhattan School of Music’s jazz program. Bobby’s 2012 big band recording, inspired by the writings of Mexican author Octavio Paz, entitled MULTIVERSE was nominated for 2 Grammys. His work as an activist led him to fight to reinstate the Latin Jazz category after NARAS decided to eliminate many ethnic and regional categories in 2010. He and three other colleagues actually sued the Grammys which led to the reinstatement of the category. He is an associate producer of and featured interviewee in the documentaries, The Palladium: Where Mambo Was King, winner of the IMAGINE award for Best TV documentary of 2003, and the Alma Award winning From Mambo to Hip Hop: A South Bronx Tale where he also composed the score in 2006 and was broadcast on PBS. In 2009 he was a consultant and featured on screen personality in Latin Music U.S.A. also broadcast on PBS. In 2017 he was also a consultant and featured on air personality for the documentary We Like It Like That: The Story of Latin Boogaloo. He is the composer for the score of the 2017 documentary Some Girls. DRUM! Magazine named him Percussionist of the Year in 2005; he was also named 2011 and 2013 Percussionist of the Year by the Jazz Journalists Association. This South Bronx native of Puerto Rican parents was a 2006 inductee into the Bronx Walk of Fame. He holds a BM from the Berklee College of Music and is on the faculty of the New School University and the Manhattan School of Music where he has taught Afro-Cuban Jazz Orchestras passing on the tradition while moving it forward. His recording with the Manhattan School of Music Afro-Cuban Jazz Orchestra entitled “Que Viva Harlem!” released in 2014 on the Jazzheads label has received ****1/2 stars in Downbeat magazine.
Mr. Sanabria has conducted hundreds of clinics in the states and worldwide under the auspices of TAMA Drums, Sabian Cymbals, Remo Drumheads, Vic Firth Sticks and Latin Percussion Inc. His background having performed and recorded as both a drummer and/or percussionist with every major figure in the history of Latin jazz, as well as his encyclopedic knowledge of both jazz and Latin music history, makes him unique in his field. His critically acclaimed video instructional series, Conga Basics Volumes 1, 2 and 3, have been the highest selling videos in the history of video instruction and have set a standard worldwide. He is the Co-Artistic Director of the Bronx Music Heritage Center and is part of Jazz at Lincoln Center’s Jazz Academy as well as The Weill Music Institute at Carnegie Hall. His latest recording released in July 2018 is a monumental Latin jazz reworking of the entire score of West Side Story entitled, West Side Story Reimagined, on the Jazzheads label in celebration of the shows recent 60th anniversary (2017) and its composer, Maestro Leonard Bernstein’s centennial (2018). Partial proceeds from the sale of this historic double CD set go the Jazz Foundation of America’s Puerto Relief Fund to aid Bobby’s ancestral homeland after the devastation form hurricanes Irma and Maria.
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#!/usr/libexec/platform-python
# -*- python-mode -*-
"""Emulate iostat for NFS mount points using /proc/self/mountstats
"""
from __future__ import print_function
__copyright__ = """
Copyright (C) 2005, Chuck Lever <cel@netapp.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301 USA
"""
import sys, os, time
from optparse import OptionParser, OptionGroup
Iostats_version = '0.2'
def difference(x, y):
"""Used for a map() function
"""
return x - y
NfsEventCounters = [
'inoderevalidates',
'dentryrevalidates',
'datainvalidates',
'attrinvalidates',
'vfsopen',
'vfslookup',
'vfspermission',
'vfsupdatepage',
'vfsreadpage',
'vfsreadpages',
'vfswritepage',
'vfswritepages',
'vfsreaddir',
'vfssetattr',
'vfsflush',
'vfsfsync',
'vfslock',
'vfsrelease',
'congestionwait',
'setattrtrunc',
'extendwrite',
'sillyrenames',
'shortreads',
'shortwrites',
'delay'
]
NfsByteCounters = [
'normalreadbytes',
'normalwritebytes',
'directreadbytes',
'directwritebytes',
'serverreadbytes',
'serverwritebytes',
'readpages',
'writepages'
]
class DeviceData:
"""DeviceData objects provide methods for parsing and displaying
data for a single mount grabbed from /proc/self/mountstats
"""
def __init__(self):
self.__nfs_data = dict()
self.__rpc_data = dict()
self.__rpc_data['ops'] = []
def __parse_nfs_line(self, words):
if words[0] == 'device':
self.__nfs_data['export'] = words[1]
self.__nfs_data['mountpoint'] = words[4]
self.__nfs_data['fstype'] = words[7]
if words[7] == 'nfs':
self.__nfs_data['statvers'] = words[8]
elif 'nfs' in words or 'nfs4' in words:
self.__nfs_data['export'] = words[0]
self.__nfs_data['mountpoint'] = words[3]
self.__nfs_data['fstype'] = words[6]
if words[6] == 'nfs':
self.__nfs_data['statvers'] = words[7]
elif words[0] == 'age:':
self.__nfs_data['age'] = int(words[1])
elif words[0] == 'opts:':
self.__nfs_data['mountoptions'] = ''.join(words[1:]).split(',')
elif words[0] == 'caps:':
self.__nfs_data['servercapabilities'] = ''.join(words[1:]).split(',')
elif words[0] == 'nfsv4:':
self.__nfs_data['nfsv4flags'] = ''.join(words[1:]).split(',')
elif words[0] == 'sec:':
keys = ''.join(words[1:]).split(',')
self.__nfs_data['flavor'] = int(keys[0].split('=')[1])
self.__nfs_data['pseudoflavor'] = 0
if self.__nfs_data['flavor'] == 6:
self.__nfs_data['pseudoflavor'] = int(keys[1].split('=')[1])
elif words[0] == 'events:':
i = 1
for key in NfsEventCounters:
self.__nfs_data[key] = int(words[i])
i += 1
elif words[0] == 'bytes:':
i = 1
for key in NfsByteCounters:
self.__nfs_data[key] = int(words[i])
i += 1
def __parse_rpc_line(self, words):
if words[0] == 'RPC':
self.__rpc_data['statsvers'] = float(words[3])
self.__rpc_data['programversion'] = words[5]
elif words[0] == 'xprt:':
self.__rpc_data['protocol'] = words[1]
if words[1] == 'udp':
self.__rpc_data['port'] = int(words[2])
self.__rpc_data['bind_count'] = int(words[3])
self.__rpc_data['rpcsends'] = int(words[4])
self.__rpc_data['rpcreceives'] = int(words[5])
self.__rpc_data['badxids'] = int(words[6])
self.__rpc_data['inflightsends'] = int(words[7])
self.__rpc_data['backlogutil'] = int(words[8])
elif words[1] == 'tcp':
self.__rpc_data['port'] = words[2]
self.__rpc_data['bind_count'] = int(words[3])
self.__rpc_data['connect_count'] = int(words[4])
self.__rpc_data['connect_time'] = int(words[5])
self.__rpc_data['idle_time'] = int(words[6])
self.__rpc_data['rpcsends'] = int(words[7])
self.__rpc_data['rpcreceives'] = int(words[8])
self.__rpc_data['badxids'] = int(words[9])
self.__rpc_data['inflightsends'] = int(words[10])
self.__rpc_data['backlogutil'] = int(words[11])
elif words[1] == 'rdma':
self.__rpc_data['port'] = words[2]
self.__rpc_data['bind_count'] = int(words[3])
self.__rpc_data['connect_count'] = int(words[4])
self.__rpc_data['connect_time'] = int(words[5])
self.__rpc_data['idle_time'] = int(words[6])
self.__rpc_data['rpcsends'] = int(words[7])
self.__rpc_data['rpcreceives'] = int(words[8])
self.__rpc_data['badxids'] = int(words[9])
self.__rpc_data['backlogutil'] = int(words[10])
self.__rpc_data['read_chunks'] = int(words[11])
self.__rpc_data['write_chunks'] = int(words[12])
self.__rpc_data['reply_chunks'] = int(words[13])
self.__rpc_data['total_rdma_req'] = int(words[14])
self.__rpc_data['total_rdma_rep'] = int(words[15])
self.__rpc_data['pullup'] = int(words[16])
self.__rpc_data['fixup'] = int(words[17])
self.__rpc_data['hardway'] = int(words[18])
self.__rpc_data['failed_marshal'] = int(words[19])
self.__rpc_data['bad_reply'] = int(words[20])
elif words[0] == 'per-op':
self.__rpc_data['per-op'] = words
else:
op = words[0][:-1]
self.__rpc_data['ops'] += [op]
self.__rpc_data[op] = [int(word) for word in words[1:]]
def parse_stats(self, lines):
"""Turn a list of lines from a mount stat file into a
dictionary full of stats, keyed by name
"""
found = False
for line in lines:
words = line.split()
if len(words) == 0:
continue
if (not found and words[0] != 'RPC'):
self.__parse_nfs_line(words)
continue
found = True
self.__parse_rpc_line(words)
def fstype(self):
"""Return the fstype for the mountpoint
"""
return self.__nfs_data['fstype']
def is_nfs_mountpoint(self):
"""Return True if this is an NFS or NFSv4 mountpoint,
otherwise return False
"""
if self.__nfs_data['fstype'] == 'nfs':
return True
elif self.__nfs_data['fstype'] == 'nfs4':
return True
return False
def compare_iostats(self, old_stats):
"""Return the difference between two sets of stats
"""
result = DeviceData()
# copy self into result
for key, value in self.__nfs_data.items():
result.__nfs_data[key] = value
for key, value in self.__rpc_data.items():
result.__rpc_data[key] = value
# compute the difference of each item in the list
# note the copy loop above does not copy the lists, just
# the reference to them. so we build new lists here
# for the result object.
for op in result.__rpc_data['ops']:
try:
result.__rpc_data[op] = list(map(
difference, self.__rpc_data[op], old_stats.__rpc_data[op]))
except KeyError:
continue
# update the remaining keys we care about
result.__rpc_data['rpcsends'] -= old_stats.__rpc_data['rpcsends']
result.__rpc_data['backlogutil'] -= old_stats.__rpc_data['backlogutil']
for key in NfsEventCounters:
result.__nfs_data[key] -= old_stats.__nfs_data[key]
for key in NfsByteCounters:
result.__nfs_data[key] -= old_stats.__nfs_data[key]
return result
def __print_data_cache_stats(self):
"""Print the data cache hit rate
"""
nfs_stats = self.__nfs_data
app_bytes_read = float(nfs_stats['normalreadbytes'])
if app_bytes_read != 0:
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)
def __print_attr_cache_stats(self, sample_time):
"""Print attribute cache efficiency stats
"""
nfs_stats = self.__nfs_data
print()
print('%d VFS opens' % (nfs_stats['vfsopen']))
print('%d inoderevalidates (forced GETATTRs)' % \
(nfs_stats['inoderevalidates']))
print('%d page cache invalidations' % \
(nfs_stats['datainvalidates']))
print('%d attribute cache invalidations' % \
(nfs_stats['attrinvalidates']))
def __print_dir_cache_stats(self, sample_time):
"""Print directory stats
"""
nfs_stats = self.__nfs_data
lookup_ops = self.__rpc_data['LOOKUP'][0]
readdir_ops = self.__rpc_data['READDIR'][0]
if 'READDIRPLUS' in self.__rpc_data:
readdir_ops += self.__rpc_data['READDIRPLUS'][0]
dentry_revals = nfs_stats['dentryrevalidates']
opens = nfs_stats['vfsopen']
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))
def __print_page_stats(self, sample_time):
"""Print page cache stats
"""
nfs_stats = self.__nfs_data
vfsreadpage = nfs_stats['vfsreadpage']
vfsreadpages = nfs_stats['vfsreadpages']
pages_read = nfs_stats['readpages']
vfswritepage = nfs_stats['vfswritepage']
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))
if vfsreadpages != 0:
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))
if (vfswritepages) != 0:
print('(%.1f pages per call)' % \
(float(pages_written - vfswritepage) / vfswritepages))
else:
print()
congestionwaits = nfs_stats['congestionwait']
if congestionwaits != 0:
print()
print('%d congestion waits' % congestionwaits)
def __print_rpc_op_stats(self, op, sample_time):
"""Print generic stats for one RPC op
"""
if op not in self.__rpc_data:
return
rpc_stats = self.__rpc_data[op]
ops = float(rpc_stats[0])
retrans = float(rpc_stats[1] - rpc_stats[0])
kilobytes = float(rpc_stats[3] + rpc_stats[4]) / 1024
queued_for = float(rpc_stats[5])
rtt = float(rpc_stats[6])
exe = float(rpc_stats[7])
if len(rpc_stats) >= 9:
errs = float(rpc_stats[8])
# prevent floating point exceptions
if ops != 0:
kb_per_op = kilobytes / ops
retrans_percent = (retrans * 100) / ops
rtt_per_op = rtt / ops
exe_per_op = exe / ops
queued_for_per_op = queued_for / ops
if len(rpc_stats) >= 9:
errs_percent = (errs * 100) / ops
else:
kb_per_op = 0.0
retrans_percent = 0.0
rtt_per_op = 0.0
exe_per_op = 0.0
queued_for_per_op = 0.0
if len(rpc_stats) >= 9:
errs_percent = 0.0
op += ':'
print(format(op.lower(), '<16s'), end='')
print(format('ops/s', '>8s'), end='')
print(format('kB/s', '>16s'), end='')
print(format('kB/op', '>16s'), end='')
print(format('retrans', '>16s'), end='')
print(format('avg RTT (ms)', '>16s'), end='')
print(format('avg exe (ms)', '>16s'), end='')
print(format('avg queue (ms)', '>16s'), end='')
if len(rpc_stats) >= 9:
print(format('errors', '>16s'), end='')
print()
print(format((ops / sample_time), '>24.3f'), end='')
print(format((kilobytes / sample_time), '>16.3f'), end='')
print(format(kb_per_op, '>16.3f'), end='')
retransmits = '{0:>10.0f} ({1:>3.1f}%)'.format(retrans, retrans_percent).strip()
print(format(retransmits, '>16'), end='')
print(format(rtt_per_op, '>16.3f'), end='')
print(format(exe_per_op, '>16.3f'), end='')
print(format(queued_for_per_op, '>16.3f'), end='')
if len(rpc_stats) >= 9:
errors = '{0:>10.0f} ({1:>3.1f}%)'.format(errs, errs_percent).strip()
print(format(errors, '>16'), end='')
print()
def ops(self, sample_time):
sends = float(self.__rpc_data['rpcsends'])
if sample_time == 0:
sample_time = float(self.__nfs_data['age'])
if sample_time == 0:
sample_time = 1;
return (sends / sample_time)
def display_iostats(self, sample_time, which):
"""Display NFS and RPC stats in an iostat-like way
"""
sends = float(self.__rpc_data['rpcsends'])
if sample_time == 0:
sample_time = float(self.__nfs_data['age'])
# sample_time could still be zero if the export was just mounted.
# Set it to 1 to avoid divide by zero errors in this case since we'll
# likely still have relevant mount statistics to show.
#
if sample_time == 0:
sample_time = 1;
if sends != 0:
backlog = (float(self.__rpc_data['backlogutil']) / sends) / sample_time
else:
backlog = 0.0
print()
print('%s mounted on %s:' % \
(self.__nfs_data['export'], self.__nfs_data['mountpoint']))
print()
print(format('ops/s', '>16') + format('rpc bklog', '>16'))
print(format((sends / sample_time), '>16.3f'), end='')
print(format(backlog, '>16.3f'))
print()
if which == 0:
self.__print_rpc_op_stats('READ', sample_time)
self.__print_rpc_op_stats('WRITE', sample_time)
elif which == 1:
self.__print_rpc_op_stats('GETATTR', sample_time)
self.__print_rpc_op_stats('ACCESS', sample_time)
self.__print_attr_cache_stats(sample_time)
elif which == 2:
self.__print_rpc_op_stats('LOOKUP', sample_time)
self.__print_rpc_op_stats('READDIR', sample_time)
if 'READDIRPLUS' in self.__rpc_data:
self.__print_rpc_op_stats('READDIRPLUS', sample_time)
self.__print_dir_cache_stats(sample_time)
elif which == 3:
self.__print_rpc_op_stats('READ', sample_time)
self.__print_rpc_op_stats('WRITE', sample_time)
self.__print_page_stats(sample_time)
sys.stdout.flush()
#
# Functions
#
def parse_stats_file(filename):
"""pop the contents of a mountstats file into a dictionary,
keyed by mount point. each value object is a list of the
lines in the mountstats file corresponding to the mount
point named in the key.
"""
ms_dict = dict()
key = ''
f = open(filename)
for line in f.readlines():
words = line.split()
if len(words) == 0:
continue
if line.startswith("no device mounted"):
continue
if words[0] == 'device':
key = words[4]
new = [ line.strip() ]
elif 'nfs' in words or 'nfs4' in words:
key = words[3]
new = [ line.strip() ]
else:
new += [ line.strip() ]
ms_dict[key] = new
f.close
return ms_dict
def print_iostat_summary(old, new, devices, time, options):
display_stats = {}
if len(devices) == 0:
print('No NFS mount points were found')
return
for device in devices:
stats = DeviceData()
stats.parse_stats(new[device])
if old and device in old:
old_stats = DeviceData()
old_stats.parse_stats(old[device])
if stats.fstype() == old_stats.fstype():
display_stats[device] = stats.compare_iostats(old_stats)
else: # device is in old, but fstypes are different
display_stats[device] = stats
else: # device is only in new
display_stats[device] = stats
if options.sort:
devices.sort(key=lambda x: display_stats[x].ops(time), reverse=True)
count = 1
for device in devices:
display_stats[device].display_iostats(time, options.which)
count += 1
if (count > options.list):
return
def list_nfs_mounts(givenlist, mountstats):
"""return a list of NFS mounts given a list to validate or
return a full list if the given list is empty -
may return an empty list if none found
"""
devicelist = []
if len(givenlist) > 0:
for device in givenlist:
if device in mountstats:
stats = DeviceData()
stats.parse_stats(mountstats[device])
if stats.is_nfs_mountpoint():
devicelist += [device]
else:
for device, descr in mountstats.items():
stats = DeviceData()
stats.parse_stats(descr)
if stats.is_nfs_mountpoint():
devicelist += [device]
return devicelist
def iostat_command(name):
"""iostat-like command for NFS mount points
"""
mountstats = parse_stats_file('/proc/self/mountstats')
devices = []
origdevices = []
interval_seen = False
count_seen = False
mydescription= """
Sample iostat-like program to display NFS client per-mount'
statistics. The <interval> parameter specifies the amount of time in seconds
between each report. The first report contains statistics for the time since
each file system was mounted. Each subsequent report contains statistics
collected during the interval since the previous report. If the <count>
parameter is specified, the value of <count> determines the number of reports
generated at <interval> seconds apart. If the interval parameter is specified
without the <count> parameter, the command generates reports continuously.
If one or more <mount point> names are specified, statistics for only these
mount points will be displayed. Otherwise, all NFS mount points on the
client are listed.
"""
parser = OptionParser(
usage="usage: %prog [ <interval> [ <count> ] ] [ <options> ] [ <mount point> ]",
description=mydescription,
version='version %s' % Iostats_version)
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:')
statgroup.add_option('-a', '--attr',
action="store_const",
dest="which",
const=1,
help='displays statistics related to the attribute cache')
statgroup.add_option('-d', '--dir',
action="store_const",
dest="which",
const=2,
help='displays statistics related to directory operations')
statgroup.add_option('-p', '--page',
action="store_const",
dest="which",
const=3,
help='displays statistics related to the page cache')
parser.add_option_group(statgroup)
displaygroup = OptionGroup(parser, "Display Options",
'Options affecting display format:')
displaygroup.add_option('-s', '--sort',
action="store_true",
dest="sort",
help="Sort NFS mount points by ops/second")
displaygroup.add_option('-l','--list',
action="store",
type="int",
dest="list",
help="only print stats for first LIST mount points")
parser.add_option_group(displaygroup)
(options, args) = parser.parse_args(sys.argv)
for arg in args[1:]:
if arg in mountstats:
origdevices += [arg]
elif not interval_seen:
try:
interval = int(arg)
except:
print('Illegal <interval> value %s' % arg)
return
if interval > 0:
interval_seen = True
else:
print('Illegal <interval> value %s' % arg)
return
elif not count_seen:
try:
count = int(arg)
except:
print('Ilegal <count> value %s' % arg)
return
if count > 0:
count_seen = True
else:
print('Illegal <count> value %s' % arg)
return
old_mountstats = None
sample_time = 0.0
# make certain devices contains only NFS mount points
devices = list_nfs_mounts(origdevices, mountstats)
print_iostat_summary(old_mountstats, mountstats, devices, sample_time, options)
if not interval_seen:
return
while True:
if count_seen:
count -= 1
if count == 0:
break
time.sleep(interval)
old_mountstats = mountstats
sample_time = interval
mountstats = parse_stats_file('/proc/self/mountstats')
# nfs mountpoints may appear or disappear, so we need to
# recheck the devices list each time we parse mountstats
devices = list_nfs_mounts(origdevices, mountstats)
print_iostat_summary(old_mountstats, mountstats, devices, sample_time, options)
#
# Main
#
prog = os.path.basename(sys.argv[0])
try:
iostat_command(prog)
except KeyboardInterrupt:
print('Caught ^C... exiting')
sys.exit(1)
sys.exit(0)