On 10/27/11 12:58, Philip Martin wrote:
> Attila Nagy<bra_at_fsn.hu> writes:
>
>> On 10/26/11 15:37, Philip Martin wrote:
>>> Attila Nagy<bra_at_fsn.hu> writes:
>>>
>>>> I'm trying to update a working copy of some tens of GBs with svn 1.7.1
>>> Did you upgrade with 1.7.0 or 1.7.1?
>> I've upgraded the WC with 1.7.0, then switched to 1.7.1, which I'm
>> currently using.
>> The upgrade took nearly one week (I can't afford a clean checkout,
>> because I have to preserve the files' inode numbers), at the start it
>> was running very fast, and at the end of the week it could print a new
>> directory in every 8-10 seconds, while the svn processes CPU usage was
>> 100%.
>> The disks weren't touched, it seems that even with a database
>> completely in the OS's buffer cache the SQL operations are pretty slow
>> with a lot of files.
>> Could it be because some indexes are missing (or not optimized for
>> this amount of files), or it is what we could get from SQLite?
> There is one query/index fix in 1.7.1 but it doesn't affect upgrade.
>
> I've not upgraded a wc as large as yours but I have just upgraded a 5GB
> working copy on my desktop machine (3 years old, not hugely powerful).
> It took about 45 minutes and used about 30 minutes of CPU. There wasn't
> any noticeable slowdown as the update proceeded.
>
> I see that you are using Fibre Channel storage, perhaps there is an
> SQLite issue there? What sort of filesystem are you using?
>
ZFS.
It it worth to make benchmarks with this WC with 1.6 and 1.7? I so, I
can try to find the time for it.
Received on 2011-10-27 14:12:57 CEST