registry team mailing list archive

[Chris Osgood <ubuntu2@xxxxxxxxxxxxxxxxxxxx>]

My CPU is capable of 130MB/sec AES-256.  My drives, 119MB/sec write.
Combine this into a dm-crypt volume: 11MB/sec (eleven megabytes per
second [!]).  Uh, this thing seems broken to me.

I'm using xfs on dm-crypt.

Anyone know if iostat can provide some useful information?  I'm
wondering about I/O thrashing like we have been seeing with grub and apt
lately.  Something is/was seriously wrong with those too.

-- 
kcryptd process doesn't utilize multiple cpus
https://bugs.launchpad.net/bugs/246413
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