[tor-bugs] #22819 [Core Tor/Tor]: Choice of compressors seems to be suboptimal
Tor Bug Tracker & Wiki
blackhole at torproject.org
Wed Jul 5 05:51:51 UTC 2017
#22819: Choice of compressors seems to be suboptimal
--------------------------+---------------------
Reporter: yurivict271 | Owner:
Type: defect | Status: new
Priority: Medium | Milestone:
Component: Core Tor/Tor | Version:
Severity: Normal | Resolution:
Keywords: | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
--------------------------+---------------------
Comment (by yurivict271):
The valid way to compare compression methods for a particular purpose is
to take your data samples and run it through lzbench
(https://github.com/inikep/lzbench).
Compression method should be a function of the current network speed. When
the speed is over a certain threshold, no compression is needed. Below the
threshold compression method is chosen based on the graph for all
available methods, like the first link above. When the speed is slightly
below the threshold, fast and slight compressors are appropriate, like
lz4. With slower speeds, deeper and slower compressors kick in, like zstd,
and later lzma.
I didn't see you even considering lz4 in proposal 278 references.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22819#comment:5>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
More information about the tor-bugs
mailing list