Bug 5570 - upgrade libjpeg-turbo
: upgrade libjpeg-turbo
: ThinLinc
Build system
: pre-1.0
: PC Unknown
: P2 Normal
: 4.5.0
Assigned To:
  Show dependency treegraph
Reported: 2015-06-16 15:46 by
Modified: 2015-09-25 13:54 (History)
Acceptance Criteria:



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Description From cendio 2015-06-16 15:46:14
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 From cendio 2015-08-26 16:20:27 -------
Upgraded in r30701.
------- Comment #2 From cendio 2015-08-27 10:39:10 -------
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
------- Comment #3 From cendio 2015-08-31 13:26:48 -------
Ran old and new client and used instruments for profiling. There was a big
difference how much time was spent in huffman encoder.