fsync slowness + XFS -- Regd.

[Alex Painemilla]

Another possibility could be that the disk is in sleep mode and it needs to
wake up (A feature enabled on most green drives)

On Tue, Mar 19, 2019 at 5:03 PM Valdis Klētnieks <valdis.kletnieks at vt.edu>
wrote:

> On Tue, 19 Mar 2019 07:40:29 +0530, Jeno P said:
>
> > One of my module *(C/C++)* is writing to log files and periodically
> flushes
> > it using *fsync()*. Even for small amount of data, *fsync* is taking more
> > time *(>15 seconds)* than expected.
>
> Is it possible that some other process is applying a file lock to the log
> file?
> Any signs of I/O errors? 15 seconds is the sort of delay you might see on a
> RAID controller with one dead or partially dead disk throwing timeouts...
>
>
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