[p4] Obliterate metrics

[Paul Goffin]

I was just outlining.

But if you want better optimisation, an even better way is to find the
changelists connected with the path-to-be-removed by "p4 changes
path-to-be-removed" and only attempt to obliterate those changenumbers.

Paul.

-----Original Message-----
From: Rick Macdonald [mailto:rickmacd at shaw.ca] 
Sent: 17 April 2007 08:48
To: Paul Goffin
Cc: perforce-user at perforce.com
Subject: Re: [p4] Obliterate metrics


What if your counter is up over a couple hundred thousand?

Wouldn't you just stop at the counter that created "path-to-be-removed"?

Rick

Paul Goffin wrote:
> Obliterate is much faster if you can reduce the workload on the server 
> by not making it unwind branches.  In other words, obliterate the 
> destination of a branch or rename location before the source.
>
> Sometimes it's easy to do this manually but a script that applies 
> "obliterate" to the section of the depot you want to remove "change by 
> change" and works BACKWARDS in time can do the job with no effort.
>
> i.e. write a script that does the following:
>
> Set counter to highest change number of interest.
> Repeat
>   p4 obliterate //path-to-be-removed/... at counter,counter
>   decrement counter
> Until counter = 0
>
>
>
>
> -----Original Message-----
> From: perforce-user-bounces at perforce.com
> [mailto:perforce-user-bounces at perforce.com] On Behalf Of David 
> Ferguson
> Sent: 17 April 2007 07:42
> To: perforce-user at perforce.com
> Subject: [p4] Obliterate metrics
>
>
> Okay, we split our depot into two last summer.  I'm finally getting 
> around to cleaning up all the old cruft that is now obsolete (since it 
> was put into the other depot)... Two choices: obliterate checkpoint 
> surgery.
>  
> Surgery works, but support really seems to frown on it.
>  
> obliterate works ...  But wow it's slow.  Anybody got metrics on how 
> slow?
>  
>
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