Digital Photo Professional incredibly slow

[gecastro]

Does anyone else have the problem that with more than 500 photos in the folder, DPP becomes almost unusable? I recently upgraded to the latest version, 4.19.10, and it seems even slower than the previous version.

[shadowsports]

Greetings,

I just upgraded from 4.18.10 to 4.19.10.  I'm not seeing any performance differences.  Do you save your files on a local disk?  Are they stored on an external drive or in a folder being backed up to the cloud?  I performed some edits and did a convert and save.  Seems normal for me.

[gecastro]

I do have my files in a local NAS, so I'm expecting it to be slower than a local hard drive. But this hasn't changed in two years, and last weekend DPP really struggled to handle the folder, maybe because I started with 800+ files.

I ended up using another software to cull the files and it was a lot faster and responsive than DPP, so the NAS should not be an issue.

PD: I have an R6, so files are on the small side compared to an R5.

[wq9nsc]

I regularly shoot with three 1DX III bodies at sports events and dump all of the photos to the same folder, generally there will be around 2,000 from an event.  I use a HP Z series workstation and a SSD for storage for working files with DPP using any disk workspace on an HP Z drive (SSD drive directly on the CPU bus). 

I don't notice any speed issues based upon number of files and I just finished post-proc for an event after upgrading to the latest version of DPP and it doesn't seem any different speed wise than the prior version. 

It does have the same issue DPP has pretty much had forever (at least on Windows PCs) in that it has a "memory leak" and after an hour or so of usage the amount of memory allocated to DPP grows very large resulting in lethargic behavior, the cure is to exit and restart DPP which provides proper performance for another hour or so.  This is on a PC with twin Xeon CPUs with 256 GB of memory per CPU and DPP doesn't use a significant portion of free memory but it simply grows sluggish as it grows regardless of the amount of available memory.

Rodger

[gecastro]

After monitoring the desktop resources for a while, I found part of the issue. Windows Defender was hogging around 60% of the NAS bandwidth, after adding some exceptions to ignore all the files from the NAS the speed did increase substantially.

Although working with a NAS won't be as fast as a local SSD, I did notice a few things:

• DPP maintains a cache in the local drive to speed up thumbnail visualisation and other stuff.
• DPP still hangs with [Not Responding] at times. Although, I can see that it is not reading from the NAS, so the bottleneck must be something else.
• I find it very strange that just opening the Preference menu takes some time and shows the "Not Responding" message.
• I have an 8-core CPU, 95% free, and 64BG RAM 80% free

[wq9nsc]

Odd, I never get the "not responding" message so it sounds like another running task is probably in conflict with a DPP process.

It is sad that Canon has never ported DPP to Linux which is a much less "busy" and convoluted OS and would likely make the DPP slowdown issues go away.  Both of my HP Z stations came with Red Hat Linux as one of the factory installed operating systems and it is a pleasure to use compared to the always intrusive and bloated system that Windows has become, particularly post XP/7 which were both fairly well behaved and far less loaded with extra garbage.

Rodger

[gecastro]

After more testing, I think that the problem is the NAS. Although there is some spare bandwidth, I assume that reading the files from the NAS adds a few extra inefficiencies than just the speed of the drive (SMB protocol?). Still puzzles me that opening the preferences window also lags when you read the photos from the NAS, like it keeps accessing the filesystem even when it's not necessary.

I guess I'll have to add an extra step to my workflow to edit the files locally before moving them to the NAS.

I agree about Linux, these days I only use Linux, with the exception when I do photo editing.

[Waddizzle]

Many NAS devices are designed to be data archives, not file servers.  Major difference in speed.