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Changeset 1578705


Ignore:
Timestamp:
01/20/2017 01:24:59 PM (9 years ago)
Author:
gitlost
Message:

Fudge speed-up claim lower in readme.txt.

Location:
gs-only-pdf-preview
Files:
2 edited

Legend:

Unmodified
Added
Removed

  • gs-only-pdf-preview/tags/1.0.0/readme.txt

    r1578351 r1578705  
    3636= Performance =
    3737
    38 Unsurprisingly it's faster. Crude benchmarking (see the script [`perf_vs_imagick.php`](https://github.com/gitlost/gs-only-pdf-preview/blob/master/perf/perf_vs_imagick.php)) suggests it's around 40% faster. However the production of the preview is only a part of the overhead of uploading a PDF (and doesn't include producing the intermediate thumbnail sizes for instance) so any speed-up may not be that noticeable.
     38Unsurprisingly it's faster. Crude benchmarking (see the script [`perf_vs_imagick.php`](https://github.com/gitlost/gs-only-pdf-preview/blob/master/perf/perf_vs_imagick.php)) suggests it's around 35-40% faster. However the production of the preview is only a part of the overhead of uploading a PDF (and doesn't include producing the intermediate thumbnail sizes for instance) so any speed-up may not be that noticeable.
    3939
    4040On jpeg thumbnail size it appears to be comparable, maybe a bit larger on average. To mitigate this the default jpeg quality for the PDF preview has been lowered to 70 (from 82), which results in some extra "ringing" (speckles around letters) but the previews tested remain very readable. Note that this only affects the "full" PDF thumbnail - the intermediate-sized thumbnails as produced by `Imagick` or `GD` and any other non-PDF images remain at the standard jpeg quality of 82. Use the WP filter [`wp_editor_set_quality`](https://developer.wordpress.org/reference/hooks/wp_editor_set_quality/) to override this, for instance to restore the quality to 82 you could add to your theme's "functions.php":

  • gs-only-pdf-preview/trunk/readme.txt

    r1578349 r1578705  
    3636= Performance =
    3737
    38 Unsurprisingly it's faster. Crude benchmarking (see the script [`perf_vs_imagick.php`](https://github.com/gitlost/gs-only-pdf-preview/blob/master/perf/perf_vs_imagick.php)) suggests it's around 40% faster. However the production of the preview is only a part of the overhead of uploading a PDF (and doesn't include producing the intermediate thumbnail sizes for instance) so any speed-up may not be that noticeable.
     38Unsurprisingly it's faster. Crude benchmarking (see the script [`perf_vs_imagick.php`](https://github.com/gitlost/gs-only-pdf-preview/blob/master/perf/perf_vs_imagick.php)) suggests it's around 35-40% faster. However the production of the preview is only a part of the overhead of uploading a PDF (and doesn't include producing the intermediate thumbnail sizes for instance) so any speed-up may not be that noticeable.
    3939
    4040On jpeg thumbnail size it appears to be comparable, maybe a bit larger on average. To mitigate this the default jpeg quality for the PDF preview has been lowered to 70 (from 82), which results in some extra "ringing" (speckles around letters) but the previews tested remain very readable. Note that this only affects the "full" PDF thumbnail - the intermediate-sized thumbnails as produced by `Imagick` or `GD` and any other non-PDF images remain at the standard jpeg quality of 82. Use the WP filter [`wp_editor_set_quality`](https://developer.wordpress.org/reference/hooks/wp_editor_set_quality/) to override this, for instance to restore the quality to 82 you could add to your theme's "functions.php":
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