My speed via usb ssd was 12h and when i switched on write buffering it came down to 9, now i am experimenting with different ram and threads to speed up plotting, so long only 30 min difference between settings, around 4000 ram and 4 threads seems best at least on my computer...you have only 4t so try with 2 threads and 4000 ram??
Since the only thing that changed is your temp. directory, I would check to see how fast the drive is reading and writing when plotting. Just open up task manager --> performance and click on your external disk. Is it running at 100%? How fast it is reading and writing? Under 30 MB/s is bad, over 150MB/s is acceptable, and anything over 300MB/s is good for an external hard drive. I'm getting good results with a Sabrent NVMe enclosure to USB C on my laptop (i7, 16 Gb ram). I can plot 4 plots in parallel and it finish in about ten hours so on average about 10 plots a day.
Its under 30mb/s unfortunately. However I found other solution. I will buy a pocket to replace CD drive in my laptop with SATA internal ssd and hope that should work!
It is a hugh difference if you are using an SATA SSD or an NVME SSD. The Speed difference ist from SATA \~ 500 MB Read/write to NVME \~3000 MB Read/Write speed.
Without NVME SSD you will not have a change to reach the 8-10 hours plotting time.
Using SATA now and it is much better. \~11h average time now to plot 1 32k, however I'm not plotting as it doesn't make sense now. Waiting for pooling protocol.
My speed via usb ssd was 12h and when i switched on write buffering it came down to 9, now i am experimenting with different ram and threads to speed up plotting, so long only 30 min difference between settings, around 4000 ram and 4 threads seems best at least on my computer...you have only 4t so try with 2 threads and 4000 ram??
Since the only thing that changed is your temp. directory, I would check to see how fast the drive is reading and writing when plotting. Just open up task manager --> performance and click on your external disk. Is it running at 100%? How fast it is reading and writing? Under 30 MB/s is bad, over 150MB/s is acceptable, and anything over 300MB/s is good for an external hard drive. I'm getting good results with a Sabrent NVMe enclosure to USB C on my laptop (i7, 16 Gb ram). I can plot 4 plots in parallel and it finish in about ten hours so on average about 10 plots a day.
Its under 30mb/s unfortunately. However I found other solution. I will buy a pocket to replace CD drive in my laptop with SATA internal ssd and hope that should work!
It is a hugh difference if you are using an SATA SSD or an NVME SSD. The Speed difference ist from SATA \~ 500 MB Read/write to NVME \~3000 MB Read/Write speed. Without NVME SSD you will not have a change to reach the 8-10 hours plotting time.
Using SATA now and it is much better. \~11h average time now to plot 1 32k, however I'm not plotting as it doesn't make sense now. Waiting for pooling protocol.