[tahoe-dev] [tahoe-lafs] #1264: Performance regression for large values of K

[tahoe-lafs]

#1264: Performance regression for large values of K
--------------------------+-------------------------------------------------
 Reporter:  francois      |           Owner:           
     Type:  defect        |          Status:  new      
 Priority:  major         |       Milestone:  undecided
Component:  code-network  |         Version:  1.8.0    
 Keywords:                |   Launchpad Bug:           
--------------------------+-------------------------------------------------
 On the grid described [http://tahoe-lafs.org/pipermail/tahoe-
 dev/2010-November/005597.html here], the download time of a 10 MB file
 encoded with 20-of-60 is roughly doubled on a client running v1.8.1 than
 the same client running v.1.7.1.


 '''allmydata-tahoe: 1.8.0-r4843'''

 {{{
 $ for i in $(seq 1 5); do /usr/bin/time -f "%e" tahoe get
 tahoe:10MB.bin.20-of-60 > /dev/null; done
 40.16
 44.87
 43.57
 51.88
 58.40
 }}}

 '''allmydata-tahoe: 1.8.0c4-r4743'''

 {{{
 $ for i in $(seq 1 5); do /usr/bin/time -f "%e" tahoe get
 tahoe:10MB.bin.20-of-60 > /dev/null; done
 38.29
 39.58
 55.32
 41.03
 45.36
 }}}

 '''allmydata-tahoe: 1.7.0-r4579'''

 {{{
 $ for i in $(seq 1 5); do /usr/bin/time -f "%e" tahoe get
 tahoe:10MB.bin.20-of-60 > /dev/null; done
 15.43
 21.87
 26.77
 25.60
 20.71
 repairer:~#
 }}}

-- 
Ticket URL: <http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1264>
tahoe-lafs <http://tahoe-lafs.org>
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