Re: [Lse-tech] Re: [PATCH] new CSA patchset for 2.6.8

[Jay Lan <jlan@sgi.com>]

Hi Guillaume,

Please visit http://oss.sgi.com/projects/pagg/
The page has been updated to provide information on a per job
accounting project called 'job' based on PAGG.

There is one userspace rpm and one kernel  module for job.
This may provide what you are looking for. It is a mature product
as well. I am sure Limin(job) and Erik(pagg) would appreciate any
input you can provide to make 'job' more useful.

Regards,
  - jay


Guillaume Thouvenin wrote:
> On Thu, Aug 26, 2004 at 10:05:37PM +0200, Tim Schmielau wrote:
> 
>>It should be easy to combine the data collection enhancements from
>>CSA and ELSA to provide a common superset of information.
> 
> 
> ELSA uses current BSD accounting. The only difference with BSD is that
> accounting is done for a group of processes. I didn't use PAGG and
> rewrite something because I thought (I was wrong) that PAGG project
> wasn't maintained. I continue to maintain ELSA just because there is, 
> until today, no solution for doing job accounting. 
> So, the data collection enhancements from ELSA is not very useful.
> 
> 
>>With the new BSD acct v3 format, it should be possible to do per job
>>accounting entirely from userspace, using pid and ppid information to
>>reconstruct the process tree and some userland database for the
>>pid -> job mapping. It would, however, be greatly simplified if the
>>accounting records provided some kind of job id, and some indicator
>>whether or not this process was the last of a job (group).
> 
> 
> I like this solution.
> In fact what I proposed was to have PAGG and a modified BSD accounting
> that can be used with PAGG as both are already in the -mm tree. But
> manage group of processes from userspace is, IMHO, a better solution as
> modifications in the kernel will be minimal. 
> 
>   Therefore the solution could be to enhance BSD accounting with data
> collection from CSA and provide per job accounting with a userspace
> mechanism. Sounds great to me... 
> 
> Best,
> Guillaume
> 
> 
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