[tahoe-lafs-trac-stream] [tahoe-lafs] #1752: are we doing more readvs and writevs than necessary for some CLI or WUI operations?

[tahoe-lafs]

#1752: are we doing more readvs and writevs than necessary for some CLI or WUI
operations?
---------------------------------+---------------------------
 Reporter:  davidsarah           |          Owner:
     Type:  defect               |         Status:  new
 Priority:  normal               |      Milestone:  undecided
Component:  code                 |        Version:  1.9.1
 Keywords:  mutable performance  |  Launchpad Bug:
---------------------------------+---------------------------
 For example, for a command of the form {{{bin/tahoe put --mutable
 localfile URI:DIR2:.../filename}}} (putting a new version of an existing
 mutable file in a mutable directory), we seem to be doing three readvs on
 the directory, and two readvs and a writev on the mutable file. This seems
 more than necessary.

 (Test done on the cloud backend; not sure yet whether it also happens for
 trunk.)

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1752>
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