Re: troubleshooting slow I/O performance.

FYI. Here is another good document: https://www.duo.uio.no/bitstream/handle/10852/10099/CarlHenrikLunde.pdf

Best Regards
Stefan Koehler

Independent Oracle performance consultant and researcher Website: http://www.soocs.de
Twitter: _at_OracleSK

> Stefan Koehler hat am 8. Mai 2018 um 10:13 geschrieben:
>
> Hello Chris,
> at first you need to identify where the time is spent in the whole I/O stack (e.g. I/O scheduler, SCSI, etc.).
>
> For example you can do that with blktrace on Linux: http://www.fis.unipr.it/doc/blktrace-1.0.1/blktrace.pdf
>
> Anything further is related to this drill-down outcome :-)
>
> Best Regards
> Stefan Koehler
>
> Independent Oracle performance consultant and researcher
> Website: http://www.soocs.de
> Twitter: _at_OracleSK

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