fsync

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ST4000NM0033-9ZM170 4T, SATA HDD

size=64KBytes, parallel=false

real 5m18.625s user 0m2.499s sys 0m20.135s

size=64KBytes, parallel=true

real 13m35.931s user 0m3.107s sys 1m8.695s

size=16KBytes, parallel=false

real 4m10.861s user 0m1.416s sys 0m7.387s

size=16KBytes, parallel=true

real 11m11.082s user 0m3.175s sys 0m41.429s

size=4KBytes, parallel=false

real 3m54.008s user 0m1.070s sys 0m5.136s

size=4KBytes, parallel=true

real 11m4.150s user 0m3.135s sys 0m35.322s

Intel S3710 800G, SATA SSD

size=64KBytes, parallel=false

real 0m38.138s user 0m1.255s sys 0m15.931s

size=64KBytes, parallel=true

real 0m27.761s user 0m1.959s sys 1m2.902s

size=16KBytes, parallel=false

real 0m13.636s user 0m0.657s sys 0m5.547s

size=16KBytes, parallel=true

real 0m13.811s user 0m2.025s sys 0m37.480s

size=4KBytes, parallel=false

real 0m5.410s user 0m0.456s sys 0m1.930s

size=4KBytes, parallel=true

real 0m8.291s user 0m1.809s sys 0m26.752s

Intel P4510 2T, NVME SSD

size=64KBytes, parallel=false

real 0m11.746s user 0m0.566s sys 0m8.133s

size=64KBytes, parallel=true

real 0m6.425s user 0m0.785s sys 0m24.773s

size=16KBytes, parallel=false

real 0m4.323s user 0m0.289s sys 0m2.813s

size=16KBytes, parallel=true

real 0m4.610s user 0m0.561s sys 0m16.516s

size=4KBytes, parallel=false

real 0m1.697s user 0m0.171s sys 0m0.903s

size=4KBytes, parallel=true

real 0m2.695s user 0m0.338s sys 0m10.404s