Re: Use of READDIRPLUS on large directories

[Bryan Schumaker <bjschuma@netapp.com>]

On 04/05/2011 08:20 AM, NeilBrown wrote:
> On Mon, 04 Apr 2011 16:14:48 -0400 Bryan Schumaker <bjschuma@netapp.com>
> wrote:
> 
>> I've done some more testing and posted my initial results here: https://wiki.linux-nfs.org/wiki/index.php/Readdir_performance_results.  If anybody has suggestions for better ways to organize the data, please let me know.  I'll also try to post some graphs in the next couple of days.
> 
> I think graphs would certainly help.
> Also it might be good to be explicit about the server hardware/config as that
> can make a real performance difference.

I've aded this to the readdir performance page.  Is there anything else I should put up about the server?

> No bright ideas about how to organise the graphs...
> I'd probably try just graphing the 'real' time against kernel version
> with one line for each different directory size.
> 
> Then you get 16 graphs, 4 different configs (v3/v4 x rddirplus/norddirplus)
> and 4 different tests (ls -f, ls -lU, ls -U, rm -r... though I can't see how
> "ls -U" is different from "ls -f").

I've added graphs showing real time.  I'll be putting up graphs showing sys time and total number of RPC calls throughout the day.

> NeilBrown
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