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stressapptest -M 10636.94843 -m 48 -i 48 -c 48 -W --read-block-size 1024000 --write-block-size 1024000 --read-threshold 100000 --write-threshold 100000 --segment-size 10240000000 --blocks-per-segment 32 -s 1800 -d /dev/sdb1 -l runlog
Are the reading threads, invert threads and cpu stress threads running at the same time when I configure the number of threads at a suitable value?
Is there any way to calculate the number of thread to run so that the memory will be at full bandwidth, Disk I/O will also be at full bandwidth and the usage of CPU is 100% at the same time?
If we start one thread per core when memory copying or writing blocks to disk, will some of the threads be suspended and as a result the memory couldn't get full stress? or some computing threads will be suspended so that the processor couldn't get full stress from sat?
As in my case, I run sat with the following command, do you have any tuning advice?stressapptest -M 10636.94843 -m 48 -i 48 -c 48 -W --read-block-size 1024000 --write-block-size 1024000 --read-threshold 100000 --write-threshold 100000 --segment-size 10240000000 --blocks-per-segment 32 -s 1800 -d /dev/sdb1 -l runlog
And configuration of our system:CPU: 1x E5-2650 v4 (24-core, 2 Threads per Core)Mem: 1x 16G DDR4 2400MHzDisk: 1x 2.0 TB 7200RPM SATA
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Why "-d" is not well suited for disk testing? Is there any bug in the function WriteBlocktoDisk()?