On 05/09/2018 03:23 PM, Samuel Sieb wrote: > On 05/09/2018 10:58 AM, JD wrote: >> 276 be/3 root 0.00 B/s 0.00 B/s 0.00 % 99.85 % [jbd2/sda3-8] > > What command produces this output? It comes from iotop. > From just that line, it looks like > there is no data transferred at all. I've never understood what 100% of > I/O bandwidth means. How is the maximum calculated? Or does it mean > that out of all the data transferred, 100% came from this process? That's not what it means. The first percentage is how much of that task's execution time it spent being swapped in and out (0.00%). The second is how much of its execution time it spent waiting on I/O to complete (99.85% in this case). Here it indicates someone is flogging an ext4 filesystem fairly hard (an indexer walking a directory tree, something logging, etc.). That also indicates he has 7 partitions using ext4 filesystems, but doesn't say which one is getting flogged. That's why I suggested an "iostat -p ALL 2" to identify the active device, followed by an "lsof" to see what processes have that device open to hunt the culprit down. ---------------------------------------------------------------------- - Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx - - AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 - - - - Admitting you have a problem is the first step toward getting - - medicated for it. -- Jim Evarts (http://www.TopFive.com) - ---------------------------------------------------------------------- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
