[Bug 246413] Re: kcryptd process doesn't utilize multiple cpus

[iw5dxh]

Hello, 
I have just added my system details, b/c I am having the same problem, I have an Atom330 CPU on a D945GCLF2 Intel Board with 3 HDDs connected.

1) One small hard disk contain the operating system, Ubuntu server 9.10 x32
2) Two hard disks (2Tb) in Raid 1 (mirror) with XFS filesystem on an encrypted md0 device

I know that Atom is a slow cpu for cryptographic processes, but using
"top" I can see that kcryptd uses only 93-94% (of 200% max) of CPU time,
and I have usually 45-60% of CPU idle time, while tranferring a BIG
file.  I have noticed about 18-19MB/s throughput.

Is there a way to use either CPU core  for cryptd daemon??
Is it connected with the type of crypto algorithm used?

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