Effects of changing tar's -b option.

Nikolas Britton nikolas.britton at gmail.com
Sun Jun 25 03:12:57 UTC 2006


Test Setup:
250 50MB files (13068252KB)
dd if=/dev/random of=testfile bs=1m count=50
Ethernet mtu=6500
Transferred files were wiped after every test with 'rm -r *'.

Test:
hostB: nc -4l port | tar xpbf n -
hostA: date; tar cbf n - . | nc hostB port; date

Test Results:
seconds = n
645sec. = 1024
670sec. = 512
546sec. = 256
503sec. = 128
500sec. = 128 (control)
515sec. = 96
508sec. = 64
501sec. = 20 (default)

Conclusions: Make your own.


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