Re: ext3 performance issue with a Berkeley db application

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

On Tue, 2003-02-04 at 01:33, Matthias Andree wrote:

> > Stephen Tweedie has a loopback driver:
> > 	 http://people.redhat.com/sct/patches/testdrive/
> > which allows you to trace all I/O.

> How do I use that one? Load the module and then do a "regular" loopback
> mount?

Yep.  You need both the testdrive.o and the modified loop.o loaded, then
a simple "mount -o loop" will work.

> What's the physical unit of "frequency" for fault injection if I am to
> use this to test applications for robustness against EIO?

You can specify that --- see the MODULE_PARMs at the end of testdrive.c
for all the options.

Cheers,
 Stephen



_______________________________________________

Ext3-users@redhat.com
https://listman.redhat.com/mailman/listinfo/ext3-users

[Index of Archives]         [Linux RAID]     [Kernel Development]     [Red Hat Install]     [Video 4 Linux]     [Postgresql]     [Fedora]     [Gimp]     [Yosemite News]

  Powered by Linux