pyfec: delete m-k of the tempfiles at random in the benchmark of the to/from files

This commit is contained in:
Zooko O'Whielacronx 2007-01-26 20:22:13 -07:00
parent 1f1b2a03b7
commit 559411f96d

View File

@ -27,6 +27,7 @@ import array
def bench_encode_to_files_shuffle_decode_from_files():
FILESIZE=1000000
CHUNKSIZE=4096
PREFIX="testshare"
K=25
M=100
import os, time
@ -41,13 +42,18 @@ def bench_encode_to_files_shuffle_decode_from_files():
outfile = None
infile = open("tmpranddata", "rb")
st = time.time()
fec.filefec.encode_to_files(infile, "testshare", K, M)
fec.filefec.encode_to_files(infile, PREFIX, K, M)
so = time.time()
print "Encoded %s byte file into %d share files in %0.2f seconds, or %0.2f million bytes per second" % (FILESIZE, M, so-st, FILESIZE/((so-st)*1000000),)
enctime = so-st
# Now delete m-k of the tempfiles at random.
tempfs = [ f for f in os.listdir(".") if f.startwith(PREFIX) ]
tempfs.shuffle()
for victimtempf in tempfs[:M-K]:
os.remove(victimtempf)
recoveredfile = open("tmpranddata-recovered", "wb")
st = time.time()
fec.filefec.decode_from_files(recoveredfile, "testshare", K, M)
fec.filefec.decode_from_files(recoveredfile, PREFIX, K, M)
so = time.time()
print "Encoded %s byte file from %d share files in %0.2f seconds, or %0.2f million bytes per second" % (FILESIZE, K, so-st, FILESIZE/((so-st)*1000000),)
return enctime + (so-st)