Re: Is there a known fio_gettime issue?

On Nov 19, 2007 8:29 PM, Shawn Lewis <shawnlewis_at_google.com> wrote:

> Hi,
>
> Is there a known issue with fio_gettime or other timing code? I'm seeing
> times of either 0 or way off for long running phases like the one listed
> below. Before I start debugging fio (this could have something to do with
> the verify code I added that's in the main tree) I just wanted to ask if
> there was a known issue because I saw the debugging code in fio_gettime as
> well as the "timewarp bug on some kernels?" comment in time.c.
>
> [hdc-sscan_write]
> filename=/export/hdw3/datafile.tmp
> rw=write
> bs=64k
> size=300g
> ioengine=sync
> bwavgtime=5000
> direct=1
> thread=1
> do_verify=0
> verify=meta
> verify_pattern=0x55aaa55a
> verify_interval=512
>
> Thanks,
> Shawn
>
Received on Tue Nov 20 2007 - 08:26:11 CET