Compressing images really slow about gulp-image

[1000ch]

It probably caused by image size. How large are they?
For example, test task of gulp-image takes only about 10 seconds on my Mac.

[donaldallen]

Images are really small. 20KB to 100KB, dimensions are all below 500x500.

[donaldallen]

I'm wondering what compression tool is being used for my PNGs. For example:

[gulp] ✔ testing.png -> before=43.34 kB after=13.01 kB reduced=30.34 kB(70%)
[gulp] Finished 'images' in 4.33 min

This is a 800x600 image with alpha transparency. The same image in the Mac app ImageOptim using OptiPng took 4 seconds.

[olegshilov]

i have the same issue.
20+ minutes for optimization is too long.

[14:15:51] Requiring external module babel-core/register
[14:15:54] Using gulpfile ~/Documents/actor-platform/actor-apps/app-web/gulpfile.babel.js
[14:15:54] Starting 'sounds'...
[14:15:54] Finished 'sounds' after 16 ms
[14:15:54] Starting 'sprite'...
[14:15:54] Finished 'sprite' after 13 ms
[14:15:54] Starting 'emoji'...
[14:15:54] Finished 'emoji' after 21 ms
[14:15:54] Starting 'images'...
[14:15:54] Finished 'images' after 2.03 ms
[14:15:54] Starting 'assets'...
[14:15:54] Finished 'assets' after 16 μs
[14:15:56] ✔ favicon_logo_32x32.png -> before=1.84 kB after=739 B reduced=1.12 kB(60.9%)
[14:15:57] - notification_icon.jpg -> Cannot improve upon 1.96 kB
[14:15:57] - notification_icon_256.jpg -> Cannot improve upon 8.78 kB
[14:15:57] ✔ logo_32x32.png -> before=1.34 kB after=574 B reduced=803 B(58.3%)
[14:15:59] ✔ ios_logo_76x76.png -> before=4.14 kB after=1.39 kB reduced=2.76 kB(66.5%)
[14:15:59] ✔ favicon_logo_96x96.png -> before=3.54 kB after=1.93 kB reduced=1.61 kB(45.4%)
[14:16:00] ✔ ios_logo_96x96.png -> before=5.14 kB after=1.68 kB reduced=3.46 kB(67.3%)
[14:16:02] ✔ win8_logo_144x144.png -> before=3.09 kB after=1.42 kB reduced=1.67 kB(54.1%)
[14:16:02] ✔ ios_logo_120x120.png -> before=6.02 kB after=1.98 kB reduced=4.03 kB(67%)
[14:16:04] ✔ ios_logo_152x152.png -> before=7.37 kB after=2.34 kB reduced=5.03 kB(68.2%)
[14:16:05] ✔ favicon_notification.png -> before=5.07 kB after=2.32 kB reduced=2.75 kB(54.2%)
[14:16:06] ✔ logo.png -> before=4.12 kB after=2.53 kB reduced=1.59 kB(38.6%)
[14:16:12] ✔ logo_152x152.png -> before=8.48 kB after=2.76 kB reduced=5.71 kB(67.4%)
[14:16:12] ✔ favicon_logo_160x160.png -> before=5.29 kB after=2.57 kB reduced=2.71 kB(51.4%)
[14:16:17] ✔ favicon_logo_196x196.png -> before=6.33 kB after=3 kB reduced=3.33 kB(52.6%)
[14:16:21] ✔ [email protected] -> before=8.93 kB after=4.27 kB reduced=4.66 kB(52.2%)
[14:17:21] ✔ notification_icon_512.png -> before=20.08 kB after=5.92 kB reduced=14.16 kB(70.5%)
[14:20:24] ✔ sheet_apple_16.png -> before=921.09 kB after=172.57 kB reduced=748.52 kB(81.3%)
[14:20:40] ✔ sheet_emojione_16.png -> before=619.96 kB after=138.22 kB reduced=481.74 kB(77.7%)
[14:20:42] ✔ sheet_twitter_16.png -> before=603.29 kB after=134.71 kB reduced=468.58 kB(77.7%)
[14:20:48] ✔ sheet_google_16.png -> before=604.87 kB after=134.67 kB reduced=470.2 kB(77.7%)
[14:22:15] ✔ sheet_apple_20.png -> before=1.27 MB after=236.98 kB reduced=1.04 MB(81.8%)
[14:22:25] ✔ sheet_twitter_20.png -> before=807.7 kB after=176.87 kB reduced=630.83 kB(78.1%)
[14:22:29] ✔ sheet_emojione_20.png -> before=850.25 kB after=185.87 kB reduced=664.38 kB(78.1%)
[14:22:29] ✔ sheet_google_20.png -> before=819.45 kB after=185.16 kB reduced=634.29 kB(77.4%)
[14:26:45] ✔ sheet_emojione_32.png -> before=1.56 MB after=367.69 kB reduced=1.2 MB(77%)
[14:26:54] ✔ sheet_google_32.png -> before=1.51 MB after=367.63 kB reduced=1.15 MB(76.2%)
[14:27:02] ✔ sheet_twitter_32.png -> before=1.44 MB after=346.31 kB reduced=1.1 MB(76.5%)
[14:27:29] ✔ sheet_apple_32.png -> before=2.55 MB after=547.08 kB reduced=2.01 MB(79%)
[14:32:45] ✔ sheet_emojione_64.png -> before=2.85 MB after=804.65 kB reduced=2.06 MB(72.4%)
[14:34:12] ✔ sheet_google_64.png -> before=3.42 MB after=838.56 kB reduced=2.6 MB(76.1%)
[14:34:48] ✔ sheet_twitter_64.png -> before=3.17 MB after=820.94 kB reduced=2.37 MB(74.7%)
[14:36:27] ✔ sheet_apple_64.png -> before=6.34 MB after=1.5 MB reduced=4.85 MB(76.4%)
➜  app-web git:(develop) ✗ 

[1000ch]

Would you try again with version 1.1.0?
Some useless process are dropped, so becoming better.