[tahoe-lafs-trac-stream] [Tahoe-LAFS] #3957: Make HTTP no slower than Foolscap for mutable uploads and downloads

[Tahoe-LAFS]

#3957: Make HTTP no slower than Foolscap for mutable uploads and downloads
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     Reporter:  itamarst     |      Owner:
         Type:  enhancement  |     Status:  new
     Priority:  normal       |  Milestone:  HTTP Storage Protocol
    Component:  unknown      |    Version:  n/a
   Resolution:               |   Keywords:
Launchpad Bug:               |
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Comment (by itamarst):

 For a tens-of-MB mutable SDMF upload, with no network latency, HTTP upload
 is about twice as slow as Foolscap. Downloads are slower, but not as much.
 The issue seems to mostly be CPU.

 With network latency of 60ms, the difference between HTTP and Foolscap
 becomes less marked. The latency penalty is not terrible.

 **Conclusion:** As a first pass, for SDMF figure out why HTTP is using
 more CPU.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3957#comment:1>
Tahoe-LAFS <https://Tahoe-LAFS.org>
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