Hello, The option --eta never,always,auto is quiet confusing. When I started the server with the below command, there is no output display. bash# docker run fio-test:5.0 --eta never --server But the same option not works in client side. bash# docker run -v /home/:/tmp/fio-data/ fio-test:5.0 --eta never --client 172.17.0.3 randread.fio hostname=7e742f684ce7, be=0, 64-bit, os=Linux, arch=x86-64, fio=fio-3.11-21-g307f, flags=1 <7e742f684ce7> Bafjo: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=1 <7e742f684ce7> Starting 1 process <7e742f684ce7> Bafjo: Laying out IO file (1 file / 10MiB) <7e742f684ce7> Bafjo: (groupid=0, jobs=1): err= 0: pid=17: Tue Oct 30 08:46:24 2018 read: IOPS=1037, BW=4151KiB/s (4250kB/s)(10.0MiB/2467msec) clat (usec): min=132, max=2901, avg=953.17, stdev=636.69 lat (usec): min=132, max=2901, avg=953.81, stdev=636.71 clat percentiles (usec): | 1.00th=[ 176], 5.00th=[ 225], 10.00th=[ 269], 20.00th=[ 359], | 30.00th=[ 457], 40.00th=[ 594], 50.00th=[ 791], 60.00th=[ 1020], | 70.00th=[ 1254], 80.00th=[ 1516], 90.00th=[ 1942], 95.00th=[ 2212], | 99.00th=[ 2573], 99.50th=[ 2671], 99.90th=[ 2802], 99.95th=[ 2835], | 99.99th=[ 2900] bw ( KiB/s): min= 1411, max=30846, per=100.00%, avg=7151.19, stdev=5345.75, samples=2560 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2560 lat (usec) : 250=8.09%, 500=25.62%, 750=14.84%, 1000=10.62% lat (msec) : 2=32.07%, 4=8.75% cpu : usr=2.03%, sys=4.95%, ctx=2565, majf=0, minf=101 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2560,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=1 Run status group 0 (all jobs): READ: bw=4151KiB/s (4250kB/s), 4151KiB/s-4151KiB/s (4250kB/s-4250kB/s), io=10.0MiB (10.5MB), run=2467-2467msec Disk stats (read/write): sda: ios=2389/0, merge=0/0, ticks=2108/0, in_queue=2108, util=86.82% please let me know how to fix it. Thanks and Regards, Mohan