[tahoe-lafs-trac-stream] [Tahoe-LAFS] #3939: HTTP protocol is significantly slower than Foolscap protocol

[Tahoe-LAFS]

#3939: HTTP protocol is significantly slower than Foolscap protocol
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     Reporter:  itamarst  |      Owner:
         Type:  defect    |     Status:  new
     Priority:  normal    |  Milestone:  HTTP Storage Protocol
    Component:  unknown   |    Version:  n/a
   Resolution:            |   Keywords:
Launchpad Bug:            |
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Comment (by itamarst):

 Did all the above (mutable uploads seem more reasonable apriori? they at
 least don't do writes per tiny bit of metadata). Some quantitative
 results: for `allmydata.test.test_system.HTTPSystemTest.test_filesystem`,
 number of writes during immutable upload goes from 530 to 60. So that's
 good! It does not however make a meaningful dent in run time... so there
 are likely other overly chatty interactions.

 Initial thought is that downloads are maybe using too small of a chunk
 size, so will investigate that next.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3939#comment:6>
Tahoe-LAFS <https://Tahoe-LAFS.org>
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