classFileIO(baseobj.BaseObj)
FileIO object
Usage:
from nfstest.file_io import FileIO
# Instantiate FileIO object given top level directory
x = FileIO(datadir="/tmp/data")
# Run workload creating the top level directory if necessary
x.run()
Methodsdefinedhere:
---------------------
__del__(self)
Destructor
__init__(self,**kwargs)
Constructor
Initialize object's private data
datadir:
Top level directory where files will be created,
it will be created if it does not exist
seed: Seed to initialized the random number generator
[default: automatically generated]
nprocs:
Number of processes to use [default: 1]
runtime:
Run time [default: 0 (indefinitely)]
verbose:
Verbose level: none|info|debug|dbg1-7|all [default: 'none']
exiterr:
Exit on first error [default: False]
read: Read file percentage [default: 40.0]
write: Write file percentage [default: 40.0]
rdwr: Read/write file percentage [default: 20.0]
randio:
Random file access percentage [default: 50.0]
iodelay:
Seconds to delay I/O operations [default: 0.0]
direct:
Use direct I/O [default: False]
rdwronly:
Use read and write only, no rename, remove, etc. [default: False]
create:
Create file percentage [default: 5.0]
odgrade:
Open downgrade percentage [default: 5.0]
osync: Open file with O_SYNC [default: 10.0]
fsync: Percentage of fsync after write [default: 2.0]
rename:
Rename file percentage [default: 5.0]
remove:
Remove file percentage [default: 5.0]
trunc: Truncate file percentage [default: 2.0]
ftrunc:
Truncate opened file percentage [default: 2.0]
link: Create hard link percentage [default: 1.0]
slink: Create symbolic link percentage [default: 0.2]
readdir:
List contents of directory percentage [default: 0.5]
lock: Lock file percentage [default: 20.0]
unlock:
Unlock file percentage [default: 80.0]
tlock: Lock test percentage [default: 20.0]
lockfull:
Lock full file percentage [default: 50.0]
minfiles:
Minimum number of files to create before any file operation
is executed [default: 10]
fsizeavg:
File size average [default: 1m]
fsizedev:
File size standard deviation [default: 256k]
rsize: Read block size [default: 64k]
rsizedev:
Read block size standard deviation [default: 8k]
wsize: Write block size [default: 64k]
wsizedev:
Write block size standard deviation [default: 8k]
sizemult:
Size multiplier [default: 1.0]
createlog:
Create log file [default: False]
createlogs:
Create a log file for each process [default: False]
logdir:
Log directory [default: '/tmp']
get_mountpoint(self)
Get mount point from data directory
run(self)
Main function where all processes are started
run_process(self,tid=0)
Main loop for each process
classFileObj(baseobj.BaseObj)
Base class so objects will inherit the methods providing the string
representation of the object and a simple debug printing and logging
mechanism.
Usage:
from baseobj import BaseObj
# Named arguments
x = BaseObj(a=1, b=2)
# Dictionary argument
x = BaseObj({'a':1, 'b':2})
# Tuple arguments: first for keys and second for the values
x = BaseObj(['a', 'b'], [1, 2])
# All of the above will create an object having two attributes:
x.a = 1 and x.b = 2
# Add attribute name, this will be the only attribute to be displayed
x.set_attrlist("a")
# Add list of attribute names to be displayed in that order
x.set_attrlist(["a", "b"])
# Set attribute with ordered display rights
x.set_attr("a", 1)
# This is the same as
setattr(x, "a", 1) or x.a = 1
x.set_attrlist("a")
# Set attribute with switch duplicate
# The following creates an extra attribute "switch" with
# the same value as attribute "a":
# x.a == x.switch
# x.a is x.switch
x.set_attr("a", 1, switch=True)
# Make the current object flat by allowing all the attributes
# for the new attribute to be accessed directly by the current
# object so the following is True:
# x.d == x.c.d
x.set_attr("c", BaseObj(d=11, e=22), switch=True)
# Set the comparison attribute so x == x.a is True
x.set_eqattr("a")
# Set verbose level of object's string representation
x.debug_repr(level)
# Set string format for verbose level 1
x.set_strfmt(1, "arg1:{0}")
# In the above example the first positional argument is "a"
# so the str(x) gives "arg1:1"
# Set attribute shared by all instances
# If a global or shared attribute is set on one instance,
# all other instances will have access to it:
# y = BaseObj(d=2, e=3)
# then the following is true
# x.g == y.g
# x.g is y.g
x.set_global("g", 5)
# Set level mask to display all debug messages matching mask
x.debug_level(0xFF)
# Add a debug mapping for mask 0x100
x.debug_map(0x100, 'opts', "OPTS: ")
# Set global indentation to 4 spaces for dprint
x.dindent(4)
# Set global indentation to 4 spaces for displaying objects
x.sindent(4)
# Set global truncation to 64 for displaying string objects
x.strsize(64)
# Do not display timestamp for dprint messages
x.tstamp(enable=False)
# Change timestamp format to include the date
x.tstamp(fmt="{0:date:%Y-%m-%d %H:%M:%S.%q} ")
# Get timestamp if enabled, else return an empty string
out = x.timestamp()
# Open log file
x.open_log(logfile)
# Close log file
x.close_log()
# Write data to log file
x.write_log(data)
# Format the given arguments
out = x.format("{0:x} - {1}", 1, "hello")
# Format the object attributes set by set_attrlist()
out = x.format("{0:x} - {1}")
# Print debug message only if OPTS bitmap matches the current
# debug level mask
x.dprint("OPTS", "This is an OPTS debug message")
classTermSignal(builtins.Exception)
Exception to be raised on SIGTERM signal
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