hg push getting worse?

[Jonathan Gibbons]

Pushes to hg.ojn now take over 10 minutes.  What does it take to fix 
this before
it's faster to do a Teamware bringover of the j2se repository than to 
push a couple
of files to hg.ojn?

-- Jon
> real    10m7.790s
> user    0m0.192s
> sys    0m0.048s




Jonathan Gibbons wrote:
> Any chance of that upgrade happening?  What would it take to make it 
> happen?
>
> -- Jon
>
>
> Tim Bell wrote:
>> I wrote:
>>
>>   
>>> ZFS snapshots are supposed to be lightweight and inexpensive.  We
>>> still have them going back to the beginning of time on hg.ojn.
>>>
>>> Perhaps we have accumulated enough to expose quadratic (or worse)
>>> performance problems.  I will do some searching over on OpenSolaris.
>>>     
>>
>> I spent ten or fifteen minutes searching on this issue.  The short
>> version is that there has been a significant amount of ZFS
>> performance work done since
>>   "Solaris Express Developer Edition 9/07 snv_70a X86"
>> which is the release hg.ojn is running.  That was the best choice
>> back when we set the server up, but now it is pretty old.
>>
>> Here are a few examples - all of these are marked FIXed in builds
>> more recent than 70a.  (FYI: OpenSolaris is currently up around b121):
>>
>> 6596190 ""zfs list" is slow due to version property"
>> http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6596190
>>
>> 6386929 "initial "zfs list" is slow"
>> http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6386929
>>
>> 6755389 "Initial run of any zfs command that iterates over datasets can be slow"
>> http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6755389
>>
>> Here is a message thread related to 'zfs list' being slow:
>>   http://mail.opensolaris.org/pipermail/zfs-discuss/2008-July/019956.html
>>
>>
>> hg.ojn has been extremely stable since we set it up - it currently
>> has 652 days of uptime.  All the same, it it probably time to start
>> planning an upgrade.
>>
>> Tim
>>   
>

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