LARGE single-system Cyrus installs?

Ken Murchison murch at
Fri Nov 16 15:56:01 EST 2007

Dale Ghent wrote:
> On Nov 16, 2007, at 2:56 PM, Ken Murchison wrote:
>> Dale Ghent wrote:
>>> On Nov 16, 2007, at 1:39 AM, Pascal Gienger wrote:
>>>>> Solaris 10 does this in my case. Via dtrace you'll see that open()  
>>>>> on the
>>>> mailboxes.db and read-calls do not exceed microsecond ranges.  
>>>> mailboxes.db
>>>> is not the problem here. It is entirely cached and rarely written
>>>> (creating, deleting and moving a mailbox).
>>> Hmm, I'm wondering if the Cyrus devs would be receptive to the idea 
>>> of  implementing some dtrace probes in Cyrus.
>>> Stuff such as mailbox open/close, IMAP operations such as SELECTs,  
>>> message retrievals, and so on.
>> We'd probably accept a patch, as long as its portable.
> Portable in what sense, exactly?
> Currently the only OSes which offer DTrace is OSX 10.5 and Solaris 10 
> (and Solaris Next), so would I be correct to assume that you mean that a 
> dtrace feature would have to work on those two OSes?

I don't care if it only works on Solaris 10, but the code can't get in 
the way of it compiling and running on any other non-Dtrace system.

Kenneth Murchison
Systems Programmer
Project Cyrus Developer/Maintainer
Carnegie Mellon University

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