[tor-bugs] #11788 [Metrics Data Processor]: Consider providing descriptor tarballs as .tar.xz rather than .tar.bz2

Fri Apr 17 04:45:31 UTC 2015

#11788: Consider providing descriptor tarballs as .tar.xz rather than .tar.bz2
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     Reporter:  karsten                 |      Owner:
         Type:  enhancement             |     Status:  reopened
     Priority:  normal                  |  Milestone:
    Component:  Metrics Data Processor  |    Version:
   Resolution:                          |   Keywords:
Actual Points:                          |  Parent ID:
       Points:                          |
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Changes (by karsten):

 * status:  closed => reopened
 * cc: Yawning (added)
 * resolution:  implemented =>

Comment:

 Yawning suggests `xz -9e` as an alternative to `xz -9`.  Here are some
 results:

 || '''Command''' || '''Decompressed size''' || '''Compression time''' ||
 '''Compressed size''' || '''Decompression Time''' ||
 || `xz -9` || 13G || 56m54.372s || 172M (1.29%) || 0m33.692s ||
 || `xz -9e` || 13G || 105m23.670s || 115M (0.86%) || 0m30.137s ||

 That's 67% of the current size for an additional 88% of compression time,
 but with 10% faster decompression.  Worth considering after switching
 CollecTor to new hardware, I'd say.  Re-opening.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11788#comment:8>
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