Strange VFS performance problem

Simo Sorce idra at samba.org
Thu Feb 10 08:38:49 GMT 2005


On Thu, 2005-02-10 at 12:13 +1100, Andrew Bartlett wrote:

> Another suggestion is to look both at network traces (the different
> clients do make very different calls) or to enable one of the audit VFS
> modules in the stack above your module, and see what call is being hit.

Uhmm a v. nice idea may be to build a performance auditor module, that
print into syslog statistical data about number of times a call is made
and average time to perform each call by the underlying filesystem.

Terry if you can do that and contribute it back it would be wonderful,
will help other VFS module writers to profile custom vfs modules.

Simo.

-- 
Simo Sorce    -  idra at samba.org
Samba Team    -  http://www.samba.org
Italian Site  -  http://samba.xsec.it


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