TheraHedwig wrote:Considering that for a lot of you, 2.8 is fast, it might be an idea to try out the files on http://files.kde.org/krita/windows/ one by one. These are all the development builds of Krita 2.9, if this slowdown snuck in, we might be able to track down in which of these development builds it snuck in.

I've used Krita on Windows since 2.4 and I experienced pretty much the same performance with all the major versions.

Yeah, that does make it simple...

Anyway, it slipped by, but we're looking into using the 'verysleepy' profiler, after we've tried out crosscompiling(for g' mic, but this too may give a speedup) The downside is that this profiler requires that you build yourself(it needs to see the source), so we're first going to check on boudewijn's computer how much speedup we can get before trying to get the profiler working on devices that suffer the slowdowns experienced in this thread.

I've now updated my system to:
Intel Core i7 with SSD drive as the main OS and software drive.
It has the same Nvidia Geforce 560 ti (1GB) and 16GB of RAM and Windows 7 Pro, SP1.

I've also installed the new version which currently is 2.9.1 (previously first release of this version 2.9).

Sadly there's still a bottleneck with a few things, loading is still slow compared to other software, PS6 loads in around 3-4 seconds, as does most software. Krita is still taking ages, quicker than before, obviously, but 40 seconds. This is poor considering it's an SSD drive.

I found the images to load a little quicker, my 8bit .jpg images imported (3456x5184) from another drive within 3 seconds, which is obviously ok.

The adjustments still have a noticeable lag though, you move a slider in say Levels, but the change doesn't happen for 2-3 seconds.

I really hope that the devs here can sort this, as Krita is very capable.

Good luck guys

P.S. If the devs here wish any help to test these issues with my setup to improve Krita, please feel free to contact me.

Apparently, Krita starts slower from ssd than from a real disk, I guess because of all the small files we have. Those should be packaged up more, that should help.

Yes, oddly enough, I ran 2.9.1 on my Win8 i5 laptop last night, and it loaded quicker than the SSD, 33 seconds in fact.

So...my recent experience has been generally really good. I'm running Win7 Core I7 with 8GB memory and load times are excellent and usually no noticeable lag times when painting but I ran into something frustrating recently. Five 8-bit layers, all within groups ( I group everything) and then suddenly manipulating the layers (moves, transforms) slowed painfully until the content of one layer completely disappeared! The layer was still there but I couldn't figure out how to get to the the actual content. I tried changing the visibility, moving the layer in the stack, isolating, etc... but in the end I just abandoned the change, tried again and everything was fine.

I'm used to using many layers in Painter and PS and this was my first foray into more than a couple of layers in Krita.

2.9.4.3 starts up in FOUR seconds now, as opposed to TWENTY-TWO on 2.9.1 - this is great !

Heh, you better update, Hadrien, we're on 2.9.4.3 already

@askinner, sounds like this bug? https://bugs.kde.org/show_bug.cgi?id=345600

That's what I'm saying ! What have you done ?? 2.9.4.3 not only starts up in four seconds but the "big brush and 16bit lag" is entirely gone ! And this happens in a very decisive moment for me. Big hugs. I'll help the kickstarter some, I hadn't gotten around to it yet but I have no excuse now...

Edit : I do have an excuse. Kickstarter does not allow backing from France apparently.

Well... I cannot really explain the big brush lag, but when we had a sprint here in Deventer with Jouni, Wolthera, Dmitry and me, we did spend a morning profiling and optimizing the startup.

Hi, I just want to say that ver. 2.9.4.3 works much better for me. Only moving layer is a little bit too slow. But I used to use transform tool instead of move:) When I use transform tool I can move layer much more smoothly and without any lags

I'm a bit late to the discussion, but I wanted to say that disabling openGL has really improved the performance of Krita for me. (I have a Dell system and also run Windows 7 on it.) When I had updated to the newest Krita release (2.9; version 2.8 had worked fine for me prior to updating), I had a lot of the same problems many people mentioned (slow startup, being very slow to save my files, brush lag regardless of brush size, etc.). I think someone (or a few people) mentioned trying to disable openGL, so I tried it and it appears to have solved all my problems so far. I don't know if anyone is still having problems now with the newest Krita release (2.9.4.6), but I just thought I'd mention this just in case =)

anyone on win 7 getting a message about reserving windows 10 for free upgrade?

I haven't seen it yet. I wonder which of my test devices I'll update... I'm scared to start building for Win7 on an Win10 machine, so not the desktop. I don't trust updates on the Surface Pro because they already broke tablet support... The three intel SDP devices aren't registered, and one is broken anyway. I guess it'll be the old Thinkpad, then.

yeh i'm worried if upgrading will affect krita...but..its a free upgrade

Might have to partition a drive and run both.