Very long to plot since this morning

Hello guys,

Since this morning, I don’t know why but it becomes very long to acheve my 4 parallel plots. Settings remained the same.

Plot size is: 32
Buffer size is: 3200MiB
Using 128 buckets
Using 2 threads of stripe size 65536

Starting phase 1/4: Forward Propagation into tmp files… Wed Jun 9 11:39:19 2021
Computing table 1
F1 complete, time: 512.168 seconds. CPU (44.42%) Wed Jun 9 11:47:51 2021
Computing table 2
Bucket 0 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 1 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 2 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 3 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 4 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 5 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 6 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 7 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 8 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 9 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 10 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 11 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 12 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 13 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 14 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 15 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 16 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 17 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 18 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 19 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 20 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 21 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 22 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 23 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 24 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 25 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 26 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 27 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 28 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 29 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 30 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 31 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 32 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 33 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 34 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 35 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 36 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 37 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 38 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 39 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 40 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 41 uniform sort. Ram: 3.065GiB, u_sort min: 0.563GiB, qs min: 0.281GiB.
Bucket 42 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.
Bucket 43 uniform sort. Ram: 3.065GiB, u_sort min: 1.125GiB, qs min: 0.281GiB.

Log from the official plotter for the first plot after around 25 min, do you see something wrong ?
I noticed that the processor is not really used, the fan doesn’t turn fastly.