[tahoe-lafs-trac-stream] [Tahoe-LAFS] #1046: add note to performance.txt about expected memory usage

[Tahoe-LAFS]

#1046: add note to performance.txt about expected memory usage
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     Reporter:  zooko        |      Owner:  nobody
         Type:  enhancement  |     Status:  new
     Priority:  major        |  Milestone:  soon
    Component:  unknown      |    Version:  1.6.1
   Resolution:               |   Keywords:  docs memory
Launchpad Bug:               |
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Description changed by zooko:

Old description:

> Basically on a typical i386 or amd64 linux system we expect Tahoe-LAFS
> processes to start life consuming about 30 MB of RAM (resident set size,
> that is. Disregard "virtual memory" measurements, which are meaningless.)
> and grow to no more than 80 MB of RAM after prolonged usage. Then factor
> in the "memory footprint of specific operations" notes that are already
> in [source:docs/performance.txt] to predict how much RAM you'll need to
> run your Tahoe-LAFS nodes.

New description:

 Basically on a typical i386 or amd64 linux system we expect Tahoe-LAFS
 processes to start life consuming about 30 MB of RAM (resident set size,
 that is. Disregard "virtual memory" measurements, which are meaningless.)
 and grow to no more than 80 MB of RAM after prolonged usage. Then factor
 in the "memory footprint of specific operations" notes that are already in
 [source:docs/performance.rst] to predict how much RAM you'll need to run
 your Tahoe-LAFS nodes.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1046#comment:2>
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