Re: [tor-bugs] #22706 [Core Tor/Tor]: Compress cached descriptors and consensus

[Tor Bug Tracker & Wiki]

#22706: Compress cached descriptors and consensus
-+-
 Reporter:  nickm|  Owner:  (none)
 Type:  enhancement  | Status:  new
 Priority:  Low  |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  disk-usage, 034-triage-20180328, |  Actual Points:
  034-removed-20180328, 035-removed-20180711 |
Parent ID:  #25503   | Points:  4
 Reviewer:  nickm|Sponsor:
-+-
Changes (by gaba):

 * keywords:
 sponsor8-maybe, disk-usage, 034-triage-20180328, 034-removed-20180328,
 035-removed-20180711
 =>
 disk-usage, 034-triage-20180328, 034-removed-20180328,
 035-removed-20180711
 * sponsor:  Sponsor8-can =>


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Re: [tor-bugs] #22706 [Core Tor/Tor]: Compress cached descriptors and consensus

[Tor Bug Tracker & Wiki]

#22706: Compress cached descriptors and consensus
-+-
 Reporter:  nickm|  Owner:  (none)
 Type:  enhancement  | Status:  new
 Priority:  Low  |  Milestone:  Tor:
 |  0.3.5.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  sponsor8-maybe, disk-usage,  |  Actual Points:
  034-triage-20180328, 034-removed-20180328  |
Parent ID:  #25503   | Points:  4
 Reviewer:  nickm|Sponsor:
 |  Sponsor8-can
-+-
Changes (by nickm):

 * parent:  #7176 => #25503
 * milestone:  Tor: 0.3.4.x-final => Tor: 0.3.5.x-final


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Re: [tor-bugs] #22706 [Core Tor/Tor]: Compress cached descriptors and consensus

[Tor Bug Tracker & Wiki]

#22706: Compress cached descriptors and consensus
---+---
 Reporter:  nickm  |  Owner:  (none)
 Type:  enhancement| Status:  new
 Priority:  Low|  Milestone:  Tor:
   |  0.3.4.x-final
Component:  Core Tor/Tor   |Version:
 Severity:  Normal | Resolution:
 Keywords:  sponsor8-maybe disk-usage  |  Actual Points:
Parent ID:  #7176  | Points:  4
 Reviewer:  nickm  |Sponsor:  Sponsor8-can
---+---
Changes (by nickm):

 * priority:  Medium => Low
 * type:  defect => enhancement
 * milestone:  Tor: 0.3.3.x-final => Tor: 0.3.4.x-final


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Re: [tor-bugs] #22706 [Core Tor/Tor]: Compress cached descriptors and consensus

[Tor Bug Tracker & Wiki]

#22706: Compress cached descriptors and consensus
---+---
 Reporter:  nickm  |  Owner:  (none)
 Type:  defect | Status:  new
 Priority:  Medium |  Milestone:  Tor:
   |  0.3.3.x-final
Component:  Core Tor/Tor   |Version:
 Severity:  Normal | Resolution:
 Keywords:  sponsor8-maybe disk-usage  |  Actual Points:
Parent ID:  #7176  | Points:  4
 Reviewer:  nickm  |Sponsor:  Sponsor8-can
---+---
Changes (by nickm):

 * milestone:  Tor: 0.3.2.x-final => Tor: 0.3.3.x-final


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Re: [tor-bugs] #22706 [Core Tor/Tor]: Compress cached descriptors and consensus

[Tor Bug Tracker & Wiki]

#22706: Compress cached descriptors and consensus
---+---
 Reporter:  nickm  |  Owner:
 Type:  defect | Status:  new
 Priority:  Medium |  Milestone:  Tor:
   |  0.3.2.x-final
Component:  Core Tor/Tor   |Version:
 Severity:  Normal | Resolution:
 Keywords:  sponsor8-maybe disk-usage  |  Actual Points:
Parent ID:  #7176  | Points:  4
 Reviewer:  nickm  |Sponsor:
---+---
Changes (by nickm):

 * status:  needs_review => new
 * keywords:  sponsor8-maybe disk-usage review-group-18 => sponsor8-maybe
 disk-usage


Comment:

 Review:
   * I think this presumes #22704.
   * This patch seems to have the same issue with anonymous mmaps as I
 noted in #22704: is it really saving RAM? I can believe it saves disk when
 Tor isn't running.
   * This patch should IMO be off-by-default, and I don't think it's safe
 to turn it on for directory caches.
   * The compression parts need to be rewritten to use the new compress.c
 APIs.
   * There are bigger memory savings available on clients: once we have the
 (micro)descriptors parsed, we can just leave them on disk, parse them, and
 not keep their text in memory at all. (After parsing we only use the text
 to answer controller requests and directory requests.)
   * We shouldn't add our own functions in the gz* namespace.
   * Cache compression won't work very well: it only handles one
 (micro)descriptor at a time.

 If we decide to take this approach, we should start with a fresh patch,
 using parts of the design here as needed.

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Re: [tor-bugs] #22706 [Core Tor/Tor]: Compress cached descriptors and consensus

[Tor Bug Tracker & Wiki]

#22706: Compress cached descriptors and consensus
-+-
 Reporter:  nickm|  Owner:
 Type:  defect   | Status:
 |  needs_review
 Priority:  Medium   |  Milestone:  Tor:
 |  0.3.2.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  sponsor8-maybe disk-usage review-|  Actual Points:
  group-18   |
Parent ID:  #7176| Points:  4
 Reviewer:  nickm|Sponsor:
-+-
Changes (by nickm):

 * status:  new => needs_review
 * component:  - Select a component => Core Tor/Tor


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