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The output of your command "$ iostat 1 3" is:

Linux 6.8.0-62-generic (mywebtutorial) 08/09/25 _x86_64_ (8 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 0.04 0.00 0.05 0.03 0.00 99.88 Device tps kB_read/s kB_wrtn/s kB_dscd/s kB_read kB_wrtn kB_dscd dm-0 4.07 118.66 83.90 0.00 272159300 192435236 0 loop0 0.00 0.00 0.00 0.00 25 0 0 loop1 0.00 0.00 0.00 0.00 2477 0 0 loop10 0.00 0.00 0.00 0.00 11407 0 0 loop11 0.00 0.02 0.00 0.00 37203 0 0 loop12 0.00 0.00 0.00 0.00 3687 0 0 loop13 0.00 0.00 0.00 0.00 3550 0 0 loop14 0.00 0.03 0.00 0.00 73329 0 0 loop15 0.00 0.00 0.00 0.00 1241 0 0 loop16 0.00 0.00 0.00 0.00 126 0 0 loop17 0.00 0.00 0.00 0.00 594 0 0 loop18 0.00 0.00 0.00 0.00 3430 0 0 loop19 0.00 0.00 0.00 0.00 3764 0 0 loop2 0.00 0.00 0.00 0.00 2521 0 0 loop20 0.00 0.00 0.00 0.00 3073 0 0 loop3 0.00 0.00 0.00 0.00 5431 0 0 loop4 0.00 0.00 0.00 0.00 3996 0 0 loop5 0.00 0.01 0.00 0.00 18034 0 0 loop6 0.00 0.00 0.00 0.00 4875 0 0 loop7 0.00 0.00 0.00 0.00 1123 0 0 loop8 0.00 0.00 0.00 0.00 888 0 0 loop9 0.00 0.00 0.00 0.00 5760 0 0 sda 3.40 118.67 83.90 0.00 272172189 192435424 0 avg-cpu: %user %nice %system %iowait %steal %idle 0.00 0.00 0.25 0.00 0.00 99.75 Device tps kB_read/s kB_wrtn/s kB_dscd/s kB_read kB_wrtn kB_dscd dm-0 0.00 0.00 0.00 0.00 0 0 0 loop0 0.00 0.00 0.00 0.00 0 0 0 loop1 0.00 0.00 0.00 0.00 0 0 0 loop10 0.00 0.00 0.00 0.00 0 0 0 loop11 0.00 0.00 0.00 0.00 0 0 0 loop12 0.00 0.00 0.00 0.00 0 0 0 loop13 0.00 0.00 0.00 0.00 0 0 0 loop14 0.00 0.00 0.00 0.00 0 0 0 loop15 0.00 0.00 0.00 0.00 0 0 0 loop16 0.00 0.00 0.00 0.00 0 0 0 loop17 0.00 0.00 0.00 0.00 0 0 0 loop18 0.00 0.00 0.00 0.00 0 0 0 loop19 0.00 0.00 0.00 0.00 0 0 0 loop2 0.00 0.00 0.00 0.00 0 0 0 loop20 0.00 0.00 0.00 0.00 0 0 0 loop3 0.00 0.00 0.00 0.00 0 0 0 loop4 0.00 0.00 0.00 0.00 0 0 0 loop5 0.00 0.00 0.00 0.00 0 0 0 loop6 0.00 0.00 0.00 0.00 0 0 0 loop7 0.00 0.00 0.00 0.00 0 0 0 loop8 0.00 0.00 0.00 0.00 0 0 0 loop9 0.00 0.00 0.00 0.00 0 0 0 sda 0.00 0.00 0.00 0.00 0 0 0 avg-cpu: %user %nice %system %iowait %steal %idle 0.00 0.00 0.00 0.00 0.00 100.00 Device tps kB_read/s kB_wrtn/s kB_dscd/s kB_read kB_wrtn kB_dscd dm-0 0.00 0.00 0.00 0.00 0 0 0 loop0 0.00 0.00 0.00 0.00 0 0 0 loop1 0.00 0.00 0.00 0.00 0 0 0 loop10 0.00 0.00 0.00 0.00 0 0 0 loop11 0.00 0.00 0.00 0.00 0 0 0 loop12 0.00 0.00 0.00 0.00 0 0 0 loop13 0.00 0.00 0.00 0.00 0 0 0 loop14 0.00 0.00 0.00 0.00 0 0 0 loop15 0.00 0.00 0.00 0.00 0 0 0 loop16 0.00 0.00 0.00 0.00 0 0 0 loop17 0.00 0.00 0.00 0.00 0 0 0 loop18 0.00 0.00 0.00 0.00 0 0 0 loop19 0.00 0.00 0.00 0.00 0 0 0 loop2 0.00 0.00 0.00 0.00 0 0 0 loop20 0.00 0.00 0.00 0.00 0 0 0 loop3 0.00 0.00 0.00 0.00 0 0 0 loop4 0.00 0.00 0.00 0.00 0 0 0 loop5 0.00 0.00 0.00 0.00 0 0 0 loop6 0.00 0.00 0.00 0.00 0 0 0 loop7 0.00 0.00 0.00 0.00 0 0 0 loop8 0.00 0.00 0.00 0.00 0 0 0 loop9 0.00 0.00 0.00 0.00 0 0 0 sda 0.00 0.00 0.00 0.00 0 0 0