vutran asked:
While my application is running (with a lot of traffic), I see this in error log but I dont even understand what it is about. I guess it’s optimizing some configuration but I need a more formal explaination.
App 13214 stderr: Trying:
App 13214 stderr: zc = 9 zm = 9 zs = 0 f = 0
App 13214 stderr: IDAT size = 5698
App 13214 stderr: zc = 9 zm = 8 zs = 0 f = 0
App 13214 stderr: IDAT size = 5698
App 13214 stderr: zc = 9 zm = 9 zs = 1 f = 0
App 13214 stderr: IDAT size = 5561
App 13214 stderr: zc = 9 zm = 8 zs = 1 f = 0
App 13214 stderr: IDAT size = 5561
App 13214 stderr: zc = 1 zm = 9 zs = 2 f = 0
zc = 1 zm = 8 zs = 2 f = 0
zc = 9 zm = 9 zs = 3 f = 0
zc = 9 zm = 8 zs = 3 f = 0
zc = 9 zm = 9 zs = 0 f = 1
zc = 9 zm = 8 zs = 0 f = 1
zc = 9 zm = 9 zs = 1 f = 1
zc = 9 zm = 8 zs = 1 f = 1
zc = 1 zm = 9 zs = 2 f = 1
zc = 1 zm = 8 zs = 2 f = 1
zc = 9 zm = 9 zs = 3 f = 1
zc = 9 zm = 8 zs = 3 f = 1
zc = 9 zm = 9 zs = 0 f = 2
zc = 9 zm = 8 zs = 0 f = 2
zc = 9 zm = 9 zs = 1 f = 2
zc = 9 zm = 8 zs = 1 f = 2
zc = 1 zm = 9 zs = 2 f = 2
zc = 1 zm = 8 zs = 2 f = 2
zc = 9 zm = 9 zs = 3 f = 2
zc = 9 zm = 8 zs = 3 f = 2
zc = 9 zm = 9 zs = 0 f = 3
zc = 9 zm = 8 zs = 0 f = 3
zc = 9 zm = 9 zs = 1 f = 3
zc = 9 zm = 8 zs = 1 f = 3
zc = 1 zm = 9 zs = 2 f = 3
zc = 1 zm = 8 zs = 2 f = 3
zc = 9 zm = 9 zs = 3 f = 3
zc = 9 zm = 8 zs = 3 f = 3
zc = 9 zm = 9 zs = 0 f = 4
zc = 9 zm = 8 zs = 0 f = 4
zc = 9 zm = 9 zs = 1 f = 4
zc = 9 zm = 8 zs = 1 f = 4
zc = 1 zm = 9 zs = 2 f = 4
zc = 1 zm = 8 zs = 2 f = 4
zc = 9 zm = 9 zs = 3 f = 4
zc = 9 zm = 8 zs = 3 f = 4
zc = 9 zm = 9 zs = 0 f = 5
zc = 9 zm = 8 zs = 0 f = 5
zc = 9 zm = 9 zs = 1 f = 5
zc = 9 zm = 8 zs = 1 f = 5
zc = 1 zm = 9 zs = 2 f = 5
zc = 1 zm = 8 zs = 2 f = 5
zc = 9 zm = 9 zs = 3 f = 5
zc = 9 zm = 8 zs = 3 f = 5
My answer:
That is verbose output from the optipng utility for shrinking PNG images. You may suppress this output with the --quiet option. Though probably one of your gems is calling it and you have little control over whether it passes the option.
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