Re: raid5-cache I/O path improvements V2

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

 



Christoph Hellwig <hch@xxxxxx> writes:

> So the summary is that for now you want me to resend with a patch
> to opt into using FUA?

I'd like to avoid "opt in" if at all possible.
Shoahua measured that using "FUA" for all writes to the journal
hurt performance on at least one device.  Do you have a different device
where it demonstrably helps?
If there any chance of automatically detecting which is which?

>
> Also do you have a git tree as a baseline somewhere?  I've been collecting
> the patches you've sent, but with increasing time I fear I might have
> missed something.

(almost) all at git://neil.brown.name/md in 'devel' branch.

Thanks,
NeilBrown

Attachment: signature.asc
Description: PGP signature


[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux