Yes exactly, I updated libraries (without turbojpeg and libarchive) and 
added AVX2 support, now t works at least 10 times faster than before. 
Problem solved. Thank you very much!
Ravil

вторник, 14 апреля 2020 г., 13:25:03 UTC+3 пользователь zdenop написал:
>
> Without AVX support tesseract 4/5 will be slow(er). So try to focus on 
> this.
> Using more than one lang will slower OCR too...
>
> Zdenko
>
>
> ut 14. 4. 2020 o 5:56 Ravil R <[email protected] <javascript:>> 
> napísal(a):
>
>> Oh you gave so much info, thanks!
>> My test exe file shows this version information:
>> tesseract 5.0.0
>>  leptonica-1.79.0 (Apr 14 2020, 06:42:43) [MSC v.1900 LIB Debug x86]
>>   libjpeg 9b : libpng 1.6.32 : libtiff 4.0.7 : zlib 1.2.11
>>
>>
>> Looks like I need to add (upgrade) the whole package
>>
>> понедельник, 13 апреля 2020 г., 21:02:42 UTC+3 пользователь zdenop 
>> написал:
>>>
>>> OS Name:                   Microsoft Windows 10 Pro
>>> OS Version:                10.0.18362 N/A Build 18362
>>> System Model:              Latitude E5570
>>> System Type:               x64-based PC
>>> Processor(s):              1 Processor(s) Installed.
>>>                            [01]: Intel64 Family 6 Model 78 Stepping 3 
>>> GenuineIntel ~2801 Mhz
>>>
>>> *tesseract -v*
>>> tesseract 5.0.0-alpha-638-gef4f
>>>  leptonica-1.80.0 (Mar 12 2020, 12:47:16) [MSC v.1916 LIB Release x64]
>>>   libgif 5.1.2 : libjpeg 6b (libjpeg-turbo 2.0.2) : libpng 1.6.36 : 
>>> libtiff 4.1.0 : zlib 1.2.11 : libwebp 1.0.2 : libopenjp2 2.3.0
>>>  Found AVX2
>>>  Found AVX
>>>  Found FMA
>>>  Found SSE
>>>  Found libarchive 3.3.3 zlib/1.2.11 liblzma/5.2.4 libzstd/1.3.8
>>>
>>> *-l eng:*
>>> tessdata_best duration: 22.839419659999997
>>> tessdata_fast duration: 3.3998838399999984
>>> tessdata duration: 5.028869279999998
>>>
>>> *-l eng+rus:*
>>> tessdata_best duration: 42.03311656
>>> tessdata_fast duration: 4.122473539999999
>>> tessdata duration: 9.4696169
>>>
>>> *-l eng+rus -c tessedit_do_invert=0*
>>> tessdata_best duration: 33.66898392
>>> tessdata_fast duration: 1.7703644200000042
>>> tessdata duration: 6.849705899999998
>>>
>>> tested with script:
>>>
>>> https://github.com/tesseract-ocr/tesseract/issues/263#issuecomment-536197289
>>>
>>> I built tesseract  with cmake and clang 10 with VS 2017 compatibility.
>>>
>>> Zdenko
>>>
>>>
>>> po 13. 4. 2020 o 9:50 Ravil R <[email protected]> napísal(a):
>>>
>>>> Sorry, I have just now seen your full answer with the questions, 
>>>> yesterday i've just got an email with the advice to go to the forum, that 
>>>> I 
>>>> did.
>>>> Now the answers 
>>>> 1) I tested the latest 5.0.0-alpha build using all types of data files, 
>>>> modern: best, fast, normal and old: for 3.0 version
>>>> 2) Yesterday I also tested 3.05 (with old tess data files) and 4.0 
>>>> versions (both with old data file and modern "Fast" data files)
>>>> 3) my PC is notebook i7-7700HQ, 32 GB, Windows 10, MS VC 2015. During 
>>>> the recognition, one core is fully loaded.
>>>> 4) I read issues regarding performance but didn't find them useful, 
>>>> when someone complains that 2 seconds is too slow it just makes me 
>>>> laughing.
>>>> 5) 2 minutes for page recognition with "Fast" data is an approximate 
>>>> value, if a tested app is compiled using Release build it is 30% faster, 
>>>> but still very slow. "Best" data files recognition takes around 5 minutes.
>>>> 6) Tesseract version doesn't significantly affect the results
>>>> 7) Old data files have the size around the size of "best" data files, 
>>>> work a little faster than "fast" data files but produce output results 
>>>> worse than "fast". So quality of the recognition is raising.
>>>>
>>>> понедельник, 13 апреля 2020 г., 10:08:08 UTC+3 пользователь zdenop 
>>>> написал:
>>>>>
>>>>> Why you decided to ignore instructions in comment
>>>>>
>>>>> https://github.com/tesseract-ocr/tesseract/issues/2946#issuecomment-612613461
>>>>> ?
>>>>> Why we should care about your problems if you do not care?
>>>>>
>>>>> Zdenko
>>>>>
>>>>>
>>>>> ne 12. 4. 2020 o 16:00 Ravil R <[email protected]> napísal(a):
>>>>>
>>>>>> I have my own simple Windows dll based on tesseractmain,cpp code. It 
>>>>>> works fine since Tesseract 3x (now I moved it the latest 5 build) and 
>>>>>> the 
>>>>>> only issue still persists is its low speed - 1 page TIFF takes around 2 
>>>>>> minutes even with the Fast version of tessdata ('eng+rus'). Is this how 
>>>>>> it 
>>>>>> actually works or there is something I don't understand?
>>>>>> Almost all the time takes this line: 
>>>>>> api.ProcessPages("c:\\1.tif", NULL, 0, NULL);
>>>>>> Sample file is attached
>>>>>>
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>>>>>> .
>>>>>>
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