Following a suggestion elsewhere, I tried establishing if a particular module was the course of the problem.
I took an unprocessed image and worked through all the modules in my Favourites, applying one at a time and found two modules to be at fault. Denoise (Profiled) as suggested by Mark Heisis previously (I hadn't started with an unprocessed image the last time I tried), and Equalizer. With neither used export returned to 3 or 4 seconds. As I mostly shoot landscape, I don't need Denoise (profiled) a lot, but I use Equalizer all the time for slight clarity and sharpness adjustments and consider it essential. I guess given darktable's power and multiple ways of "skinning a cat" there may be another way of achieving the same results as Equalizer, but I don't know how. Other things I looked at were: In Core Options I don't have the option to turn off Activate openCl support. Memory in use for Cache is 512, backgrounds threads are two. LittleCMS & HQ Export Resampling are off. I am not an expert darktable user, but as I said previously I really love it and have been learning it gradually (especially recently using Robert Hutton's excellent videos). I really need some help and would be much appreciative. Regards, Donal On 4 April 2014 08:49, Donal Buckley <donalbuck...@gmail.com> wrote: > I've tried switching off Denoise Profiled but it didn't make any > difference, export time per image is still 10 to 15 minutes. Also I was > trying to adding a drawn mask to one image and the entire system became > very slow while doing that. > > Right now darktable has become almost unusable for me. Would love some > assistance. > > Regards > > > On 2 April 2014 20:16, Mark Heieis <mhei...@alois.ca> wrote: > >> Hi, >> >> I have had the same experience. For me it seems to be related to enabling >> denoise (profiled). With denoise enabled export takes ~50s or more, without >> ~4s per image. I think this is to be expected. Although having said that, >> I've had a few occasions where DT became locked and was consumming 100% of >> CPU resources (denoise was enabled in these cases but hard to say if >> denoise was the culprit). Killing its process was required in those cases. >> >> As for the lag time, it may also be due to having denoise enabled on most >> of my images. >> >> >> >> >> On 2014-04-02 11:37, Donal Buckley wrote: >> >> >> Hi all, >> >> (First apologies if you've received twice email twice). >> >> I've been using darktable for over a year since about v0.9 and love it. >> Never had any issues. However since two weeks ago it has really become >> unstable or almost unusble when exporting jpegs. Haven't previously been >> on the mailing list and joined to report this critical bug. >> >> I'm using darktable 1.4.1. >> >> System is running LinuxMint 13 64-bit (MATE). >> Hardware is a Dell e6400 running Intel Core Duo P8400 with 4gb RAM & >> integrated Intel graphics. >> Image Library is on a external 1Gb 7400rpm HDD. >> >> There was a LinuxMint Software Manager two weeks ago of various >> packages and system was updated. No details of what ran in Update manager. >> >> Details: Everything seems fine on processing. However when attempting >> to export an image, the CPU will max (up to 184% in System Monitor) and >> memory use will increase also, typically around 900 Mb but often higher. >> >> Regardless of number of images selected for processing, from 1 to 16 >> (all that I've tried) and with image quality set to 90%, unchanged file >> format of jpeg 8-bit. However the problem manifests regardless of other or >> no other open applications. >> >> The queue will remain open for any extended time. darktable will become >> laggy, (eg. the lighttable and darkroom views may become mixed or the >> "working" message may partially display with no exporting queue or no >> correct format , or the queue may sit there with no apparent processing and >> the app will have to be closed. Once closed, it will still have to be Ended >> or Killed via System Monitor or Terminal as it will stay CPU maxed in >> background. >> >> Example: I have been trying to export one single 90% image with the >> exporting queue open for 10 minutes with no progress. CPU is showing 178% >> with Memory varying from 850 to 40 MB. The image is in a folder with one >> file only. Single Image eventually exported after about 20 minutues. >> >> Example 2: Currently trying to export 16 images. Five have processed >> after 2 hours minutes. RAM is at 1.1gb. CPU varying in System Monitor but >> CPU applet is constantly showing 100%. Other system functions are sluggish >> but useable. >> >> Hope someone can help, as I currently can process only a limited amount >> of images over significant period of time. >> >> Regards >> >> -- >> loneswimmer.com >> >> marathonswimmers.org >> >> >> >> >> >> -- >> loneswimmer.com >> >> marathonswimmers.org >> >> >> >> >> ------------------------------------------------------------------------------ >> >> >> >> _______________________________________________ >> darktable-devel mailing >> listdarktable-devel@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/darktable-devel >> >> >> >> >> ------------------------------------------------------------------------------ >> >> _______________________________________________ >> darktable-devel mailing list >> darktable-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/darktable-devel >> >> > > > -- > loneswimmer.com > > marathonswimmers.org > > > -- loneswimmer.com marathonswimmers.org
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