I'm seeing 30-40% PPD reduction for the 1922x CPU projects compared to other CPU projects.
Dell Inspiron 3880
i5-10400 (6 cores enabled)
12GB RAM (DDR4 3200, 1x8+1x4, non-matching dual channel)
80GB hard drive (WD800AAJS)
Ubuntu 24.04 LTS
19229 is taking 18 hours to complete for 63K PPD. 19227 and 19228 are taking 14 hours to complete for 80-95K PPD
All other projects running on this machine get close to 100-120K PPD.
Is it normal for the 1922x projects to be this slow? Is it possible they need to be benchmarked again?
19229 looks to be getting dumped repeatedly every day. That doesn't seem good for the science.
https://api.foldingathome.org/project/1 ... ne/0/gen/0
1922x projects - slow performance
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1922x projects - slow performance
Last edited by AgrFan on Tue Feb 03, 2026 8:51 pm, edited 3 times in total.
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muziqaz
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Re: 1922x projects - slow performance
Yes, PPD varies between projects.
I swings of up to 1m PPD on my CPUs
I swings of up to 1m PPD on my CPUs
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toTOW
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Re: 1922x projects - slow performance
p19229 is indeed below typical PPD on my CPU ... 
And don't look at Run 0 / Clone 0 / Gen 0 reports, there's a bug in the work servers that counts all dumped WUs in the project as Run 0 / Clone 0 / Gen 0.
And don't look at Run 0 / Clone 0 / Gen 0 reports, there's a bug in the work servers that counts all dumped WUs in the project as Run 0 / Clone 0 / Gen 0.
Folding@Home beta tester since 2002. Folding Forum moderator since July 2008.
Re: 1922x projects - slow performance
I realize PPD varies between projects. It's the percentage that's concerning. 30-40% seems a bit high.
To see if the difference is machine related, I increased cores from 3 to 4 on another Dell machine to pull 192xx work.
Dell Optiplex 7020
i5-4590 (4 cores enabled)
8GB RAM (DDR3 1333, 2x4, matching dual channel)
240GB SATA SSD
Windows 10 Pro
1922x work may be better served being sent to machines with >=8 cores instead of >=4 cores.
Last edited by AgrFan on Tue Feb 03, 2026 8:49 pm, edited 1 time in total.
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muziqaz
- Posts: 2398
- Joined: Sun Dec 16, 2007 6:22 pm
- Hardware configuration: 9950x, 9950x3d, 7950x3d, 5950x, 5800x3d
7900xtx, RX9070, Radeon 7, 5700xt, 6900xt, RX550, Intel B580 - Location: London
- Contact:
Re: 1922x projects - slow performance
That will not solve the problemAgrFan wrote: ↑Tue Feb 03, 2026 8:41 pmI realize PPD varies between projects. It's the percentage that's concerning. 30-40% seems a bit high.
To see if the difference is machine related, I increased cores from 3 to 4 on another Dell machine.
Dell Optiplex 7020 with a i5-4590 (4 cores enabled), 8GB RAM (matching dual channel), 240GB SATA SSD, Windows 10 Pro.
1922x work may be better served being sent to machines with >=8 cores instead of >=4 cores.
FAH Omega tester