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

bugzilla at redhat.com bugzilla at redhat.com
Mon Mar 26 12:59:17 UTC 2018


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

Xavi Hernandez <jahernan at redhat.com> changed:

           What    |Removed                     |Added
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              Flags|needinfo?(asriram at redhat.co |
                   |m)                          |
                   |needinfo?(jahernan at redhat.c |
                   |om)                         |



--- Comment #15 from Xavi Hernandez <jahernan at redhat.com> ---
The behavior with other-eager-lock disabled is expected. When it's enabled it
shouldn't be any functional difference compared to the same version without the
patch.

If I understand correctly, to execute this test you are running an 'ls' in an
infinite loop from 4 clients and then checking the time taken by one of them
(or another fifth ls executed manually). In this case each 'ls' can block the
directory for up to 1 second, causing all other 'ls' to have to wait.
Considering this, the time doesn't seem unexpected to me.

Did this test take less time before the patch ?

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