Bug 5570 - upgrade libjpeg-turbo
Summary: upgrade libjpeg-turbo
Alias: None
Product: ThinLinc
Classification: Unclassified
Component: Build system (show other bugs)
Version: pre-1.0
Hardware: PC Unknown
: P2 Normal
Target Milestone: 4.5.0
Assignee: Pierre Ossman
Keywords: hean01_tester, relnotes
Depends on:
Reported: 2015-06-16 15:46 CEST by Pierre Ossman
Modified: 2015-09-25 13:54 CEST (History)
2 users (show)

See Also:
Acceptance Criteria:


Description Pierre Ossman cendio 2015-06-16 15:46:14 CEST
The 1.4.1 release notes has this:

[6] Performance has been improved significantly on 64-bit non-Linux and 
non-Windows platforms (generally 10-20% faster compression and 5-10% 
faster decompression.)  Due to an oversight, the 64-bit version of the 
accelerated Huffman codec was not being compiled in when libjpeg-turbo 
was built on platforms other than Windows or Linux.  Oops.

So our OS X client would benefit from this.
Comment 1 Pierre Ossman cendio 2015-08-26 16:20:27 CEST
Upgraded in r30701.
Comment 2 Pierre Ossman cendio 2015-08-27 10:39:10 CEST
Can't see any real performance increase from this, most likely because bug 5415 is dominating CPU usage. It is not worse either though, so the upgrade can stay.
Comment 3 Henrik Andersson cendio 2015-08-31 13:26:48 CEST
Ran old and new client and used instruments for profiling. There was a big difference how much time was spent in huffman encoder.


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