0.7 performance, attack of the seek? [Was: Re: [DRBD-user] 0.6 vs. 0.7 3ware performance? [Was: Expectedsyncspeed for a 425gb volume?]]

Nate Carlson natecars at real-time.com
Mon Apr 11 22:06:31 CEST 2005

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Thu, 7 Apr 2005, Todd Denniston wrote:
> In the systems that have been having trouble getting the speed they want
> out of 0.7, has anyone tried putting the metadata on a separate physical
> disk (not in the same RAID either)?

I just attempted putting the metadata on a loopback device where the loop
file was located in a tmpfs partition (no other physical devices available
in these boxes), and get the same poor performance. Is that an adequate
test?

-- 
Nate Carlson <natecars at real-time.com>   | Phone : (952)943-8700
http://www.real-time.com                | Fax   : (952)943-8500




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