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Re: [tor-bugs] #14952 [Applications/Tor Browser]: Audit HTTP/2 and SPDY if needed



#14952: Audit HTTP/2 and SPDY if needed
-------------------------------------------------+-------------------------
 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  task                                 |         Status:
                                                 |  assigned
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-linkability, tbb-usability-      |  Actual Points:
  website, tbb-performance                       |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by arthuredelstein):

 * keywords:  tbb-linkability, tbb-usability-website => tbb-linkability,
     tbb-usability-website, tbb-performance
 * cc: arthuredelstein (added)


Comment:

 I wondered what the performance effects of SPDY/HTTP2 are. As a simple
 test, I used the network panel in Tor Browser to compare the loading speed
 of https://en.wikipedia.org/wiki/Main_Page. Here are the page loading
 times, in seconds:

 {{{
 network.http.spdy.enabled = false
 8.36, 7.21, 7.16, 6.47, 9.39, 7.19, 7.10, 7.05,
 7.21, 7.03, 8.58, 9.41, 7.03, 6.93, 6.81, 7.40
 Average: 7.52 ± 0.90 s

 network.http.spdy.enabled = true (also, sub-prefs enabled)
 4.67, 5.18, 4.81, 4.56, 5.03, 4.62, 5.21, 4.95,
 4.67, 4.69, 5.04, 4.73, 4.86, 4.71, 4.60, 4.82
 Average: 4.82 ± 0.21 s
 }}}

 So, at least on this page, Tor Browser would benefit from re-enabled
 HTTP2/SPDY (unsuprisingly).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14952#comment:24>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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