iMac Pro -- reasonable expectation for performance?
I'm supporting a photographer/architect client complaining of intermittently lagging computer performance. He's got a 2017 iMac Pro with the following specs:
• 3 GHz Intel Xeon W processor
• 64 GB RAM
• 1TB flash storage
• Radeon Pro Vega 64 graphics card
The issues seem to arise when opening very large (1.5GB+) raw files in Lightroom, then trying to edit them in Photoshop. He was also saying opening images and especially larger PDFs in Preview was problematic for him. Lastly he claims that YouTube videos will intermittently play very fast, causing a 3-5 minute video to speed up and complete in 15-30 seconds, though I was unable to replicate this. I recommended a partner tech of mine run Onyx, which he had a few weeks ago and it seemed to help temporarily, however the issues have since returned so I came in myself today. When I first arrived I found Lightroom unresponsive. He had about 20 windows open in various apps, including Lightroom, Safari, Mail, Preview, PDF Expert Pro, and Photoshop. After rebooting though the machine seems much more responsive. Still, when I open one of the larger files in Lightroom, then Edit In > Photoshop it takes about 30 seconds to open in PS.
I guess what I'm wondering if this is expected behavior for a machine of this caliber? Seems like a super high-end machine like this should be able to power through most anything you throw at it? But then again, maybe intensive use and lots of caches can bring down even the mightiest machine. I asked him about how often he reboots, and his reply was "whenever things slow down", so it seems like it might not be that often. I suggested the once per week reboot methodology of clearing caches. I also created a test user for him, though due to the intermittent nature of the issues I'm not sure how much benefit it will be.
I've heard of some graphics issues with the iMac Pro machines and wonder if there's a way to test for that. This would also lend itself to the weird accelerated YouTube thing.
I recall MacOS used to have a diagnostic if you rebooted holding D, though I haven't been able to get that to work.
1.5 GB RAW??? What kind of camera does he have?? Is he working locally, from the Flashdrive or from an external drive? Opening a raw file from lightroom in PS when it's stored on a network drive doesn't work for me (on a Synology). If it's on an external drive, maybe that's the issue?