Re: ms_crc_data false

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, 8 Apr 2015, Deneau, Tom wrote:
> With 0.93, I tried 
>     ceph tell 'osd.*' injectargs '--ms_crc_data=false' '--ms_crc_header=false'
> 
> and saw the changes reflected in ceph admin-daemon
> 
> But having done that, perf top still shows time being spent in crc32 routines.
> Is there some other parameter that needs changing?

The osd still does a CRC for the purposes of write journaling.  This can't 
be disabled currently.  You shouldn't see this come up on reads...

sage
--
To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [CEPH Users]     [Ceph Large]     [Information on CEPH]     [Linux BTRFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]
  Powered by Linux