Re: [tor-bugs] #23816 [Core Tor/Tor]: Use expontial backoff with jitter and/or tune its parameters

2017-10-27 Thread Tor Bug Tracker & Wiki 
#23816: Use expontial backoff with jitter and/or tune its parameters
-+
 Reporter:  nickm|  Owner:  nickm
 Type:  defect   | Status:  needs_review
 Priority:  Medium   |  Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor |Version:
 Severity:  Normal   | Resolution:
 Keywords:  review-group-24  |  Actual Points:
Parent ID:   | Points:
 Reviewer:  catalyst |Sponsor:  SponsorV
-+
Changes (by catalyst):

 * reviewer:   => catalyst


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Re: [tor-bugs] #23816 [Core Tor/Tor]: Use expontial backoff with jitter and/or tune its parameters

2017-10-17 Thread Tor Bug Tracker & Wiki 
#23816: Use expontial backoff with jitter and/or tune its parameters
--+
 Reporter:  nickm |  Owner:  nickm
 Type:  defect| Status:  needs_review
 Priority:  Medium|  Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+
Changes (by nickm):

 * status:  accepted => needs_review


Comment:

 `bug23816_029` has an implementation of the two suggested algorithms, for
 merge into 0.2.9 or later.

 I don't know what the changes file should say here. :)

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Re: [tor-bugs] #23816 [Core Tor/Tor]: Use expontial backoff with jitter and/or tune its parameters

2017-10-17 Thread Tor Bug Tracker & Wiki 
#23816: Use expontial backoff with jitter and/or tune its parameters
--+
 Reporter:  nickm |  Owner:  nickm
 Type:  defect| Status:  accepted
 Priority:  Medium|  Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+

Comment (by nickm):

 They recommend one of two approaches. "Full Jitter":
 {{{
 sleep = random_between(0, min(cap, base * 2 ** attempt))
 }}}

 Or "Decorrelated Jitter":
 {{{
 sleep = min(cap, random_between(base, sleep * 3))
 }}}

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Re: [tor-bugs] #23816 [Core Tor/Tor]: Use expontial backoff with jitter and/or tune its parameters

2017-10-17 Thread Tor Bug Tracker & Wiki 
#23816: Use expontial backoff with jitter and/or tune its parameters
--+
 Reporter:  nickm |  Owner:  nickm
 Type:  defect| Status:  accepted
 Priority:  Medium|  Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal| Resolution:
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+
Changes (by nickm):

 * owner:  (none) => nickm
 * status:  new => accepted


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[tor-bugs] #23816 [Core Tor/Tor]: Use expontial backoff with jitter and/or tune its parameters

2017-10-10 Thread Tor Bug Tracker & Wiki 
#23816: Use expontial backoff with jitter and/or tune its parameters
--+
 Reporter:  nickm |  Owner:  (none)
 Type:  defect| Status:  new
 Priority:  Medium|  Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor  |Version:
 Severity:  Normal|   Keywords:
Actual Points:|  Parent ID:
   Points:|   Reviewer:
  Sponsor:|
--+
 See https://www.awsarchitectureblog.com/2015/03/backoff.html

 Taylor suggested this.

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