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ebidel
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this bumps it to give roughly the same output as it does under Chrome stable but we should investigate this more and try to bisect for the cause or track it better
File a bug to track that!
brendankenny
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LGTM2
re #2217, we can easily install libjpeg-turbo and verify things with SSIM/our eyeballs. I do wonder if there's some build rule we didn't see that swaps in other libraries depending on platform. That would make picking a particular quality number a little harder :)
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@brendankenny yeah libjpeg-turbo is one of 3 possibilities I'm not sure under what circumstances the others get triggered would have to do some more digging https://cs.chromium.org/chromium/src/ui/gfx/codec/jpeg_codec.cc?type=cs&l=47 |
related #2217
at some point recently the JPEG library used by chrome has changed so that the quality or file size is now much lower for the same quality setting which is causing smoke tests to fail if they don't use the cached download of Chrome (see https://travis-ci.org/GoogleChrome/lighthouse/jobs/235694158)
this bumps it to give roughly the same output as it does under Chrome stable but we should investigate this more and try to bisect for the cause or track it better