Search found 10 matches
- 2019-05-13T14:04:08-07:00
- Forum: Users
- Topic: Turning performance of signature hashing
- Replies: 16
- Views: 16752
Re: Turning performance of signature hashing
@magick - I have re-run the tests with the version "7.0.8-45 2019-05-13" and the result is identical to yours for both Q8 and Q16. The issue has been successfully fixed. Thank you very much!
- 2019-05-12T23:40:30-07:00
- Forum: Users
- Topic: Turning performance of signature hashing
- Replies: 16
- Views: 16752
Re: Turning performance of signature hashing
@magick - please say "hi" to Pistachio who greets tourists coming to a Dead Sea resort Kalia Beach. I hope this will help unifying the signature across multiple flavours of IM.
https://1drv.ms/u/s!AvJkQjHuwG2jhrF7URqE3uuH9Ik39g
https://1drv.ms/u/s!AvJkQjHuwG2jhrF7URqE3uuH9Ik39g
- 2019-05-12T08:49:32-07:00
- Forum: Users
- Topic: Turning performance of signature hashing
- Replies: 16
- Views: 16752
Re: Turning performance of signature hashing
@magick - thank you for looking into this. I have checked the latest available beta just now, and it seems to still generate different signatures between Q8 and Q16. >magick -version Version: ImageMagick 7.0.8-45 Q16 x64 2019-05-11 http://www.imagemagick.org Copyright: Copyright (C) 1999-2018 ImageM...
- 2019-05-11T08:15:37-07:00
- Forum: Users
- Topic: Turning performance of signature hashing
- Replies: 16
- Views: 16752
Re: Turning performance of signature hashing
@dlemstra - the output of the version information is this: The "faster" version (IM6): >identify -version Version: ImageMagick 6.9.10-44 Q16 x64 2019-05-04 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/licens...
- 2019-05-08T00:03:35-07:00
- Forum: Users
- Topic: Turning performance of signature hashing
- Replies: 16
- Views: 16752
Re: Turning performance of signature hashing
Maybe this belongs in the "bugs" section? I can confirm that the 4x speed drop is assosiated only with the change in version and not with HDRI.
- 2019-05-06T07:51:40-07:00
- Forum: Users
- Topic: Turning performance of signature hashing
- Replies: 16
- Views: 16752
Re: Turning performance of signature hashing
This is the name of the installer file: "ImageMagick-7.0.8-44-Q16-x64-dll.exe". This is the "recommended" download under the Windows section. I can see that the HDRI-enabled versions have "HDRI" in their file name of the installer.
- 2019-05-06T01:52:37-07:00
- Forum: Bugs
- Topic: Possible partial use of pixels while creating signatures
- Replies: 1
- Views: 6013
Possible partial use of pixels while creating signatures
Not sure if this is a cosmetic issue or a bug. I have observed it in both 6.9.10-44 and 7.0.8-44 on 64-bit Windows 10. When using "-monitor" with "identify", it seems to omit the last row of pixels from the progress. In my case it seems to read 2013 out of 2014 rows of pixels, as...
- 2019-05-06T01:38:19-07:00
- Forum: Users
- Topic: Turning performance of signature hashing
- Replies: 16
- Views: 16752
Re: Turning performance of signature hashing
Did some more experimenting this morning. The "-limit thread 1" does not appear to have any impact at all. The use of multi-threading in my code scales the performance in a linear fashion, as long as the number of threads in the code is less than the threads available on the CPU. Any addit...
- 2019-05-05T12:47:27-07:00
- Forum: Users
- Topic: Turning performance of signature hashing
- Replies: 16
- Views: 16752
Re: Turning performance of signature hashing
snibgo, thanks for your prompt reply. I did some testing from the command line, with and without "-limit thread 1". The Windows task manager reports the thread count as 2 in *both* cases, with the average CPU usage of 12%. The directory with images was placed on an SSD drive to rule out di...
- 2019-05-05T10:21:22-07:00
- Forum: Users
- Topic: Turning performance of signature hashing
- Replies: 16
- Views: 16752
Turning performance of signature hashing
Hi, I am trying to create signatures of around 70,000 photos, mostly JPEG and Nikon NEF. The version is "ImageMagick-7.0.8-44-Q16-x64-dll" on Windows 10. The configuration is out-of-the box, with no tweaks to the XML configuration files. The CPU is i7-2600 @ 3.40GHz with 8GB RAM. It takes ...