Re: mongo benchmark results

[Hans Reiser <reiser@namesys.com>]

David Dabbs wrote:

>>-----Original Message-----
>>From: Alex Zarochentsev [mailto:zam@namesys.com]
>>Sent: Monday, July 26, 2004 12:09 PM
>>
>>2 Lena:
>>
>>I have added a cpu utilization stat (ratio of system time for all cpus to
>>total time, in percents) to mongo.pl.
>>
>>Please take new mongo before repeating the benchmark.
>>
>>--
>>Alex.
>>    
>>
>
>For what it's worth, I reproduced the mongo runs with 8k files as Hans
>suggested. Results are at 
>
>http://dabbs.net/reiser4/mongo8kfiles.html
>
>The CREATE performance increase seems to have evaporated, though perhaps
>that was what Hans was looking to test with the updated config. I was in a
>hurry this morning and I may have varied the test slightly. I'll use Zam's
>new mongo when I get home this evening. I will as well test copying and
>compiling the kernel. Unless there's another recommended way to do this, I
>I'll substitute the output from "time -c" into a mongo log file so
>mongo_parser can compare the results.
>
>Zam/Elena where should I look for the new mongo tgz? I don't see it at
>http://thebsh.namesys.com/benchmarks/.
>
>Thanks for the updated mongo.
>
>david
>
> 
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>
Ignore what I said about 500mb mongo, the dd gives the info desired.

I don't understand these results.  If they are correct, we have lost a 
lot of our ext3 performance advantage, and I want to know where it 
went.  Elena, Zam, please comment.