I'm trying to use
iotop to determine whether the CPUs are waiting on I/O at any point for a specific program called
bwa (it's a next-generation sequence alignment program). If I start
iotop without specifying a specific process (
-p pid), I get all of the expected information, including
IO>, but the process I'm interested in doesn't show up on the list. If I then specify the process I'm interested in,
iotop complains that "CONFIG_TASK_DELAY_ACCT not enabled in kernel". For sanity, I verified in my kernel config file (
CONFIG_TASK_DELAY_ACCT is enabled (
- What could make
CONFIG_TASK_DELAY_ACCTis not enabled for a specific process when I know it is?
- Can I fix it?
- Have I overlooked something silly?