[Bugs] [Bug 1530519] disperse eager-lock degrades performance for file create workloads

bugzilla at redhat.com bugzilla at redhat.com
Tue Mar 27 11:46:48 UTC 2018


https://bugzilla.redhat.com/show_bug.cgi?id=1530519

nchilaka <nchilaka at redhat.com> changed:

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--- Comment #19 from nchilaka <nchilaka at redhat.com> ---
(In reply to Ashish Pandey from comment #16)
> Xavi,
> 
> There were only 15 entries in a directory.
> He opened 4 console and mounted same volume on 4 different mount point.
> Then he executed the "ls" command in that directory at the same time
> (pressed enter and using broadcast feature of the terminal) from all the
> clients.
> 
> It was not an infinite loop on any client.
> 
> I am not sure about the regression and if the previous release without this
> patch was taking the same time or not.
> 
> I think in any case it is too much time to list 15 entries only.
> However, disabling other-eager-lock is giving good performance.
> 
> Nag,
> If you can also provide the number without this patch in previous release
> then that would be great.


I checked in 3.3.1-async ie 3.8.4-54-3 and when triggered from 2 clients,
simultaneously(didn't have 4 clients), it too less than 1 sec here.

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