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List: mondrian
Subject: Re: [Mondrian] Mondrian Performance Test Harness
From: Nicholas Goodman <ngoodman () bayontechnologies ! com>
Date: 2010-08-23 19:59:57
Message-ID: 8B758210-9B0F-472A-BD95-D136A4794BEA () bayontechnologies ! com
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On Aug 23, 2010, at 12:37 PM, <jeff.s.wright@thomsonreuters.com> wrote:
> Good references, I’ve seen those. SSB is a snowflake model with a single fact \
> table. I’d prefer to be able to test Virtual cubes. I came down on the side of \
> TPC-DS because it seemed more meaty as a data model and there was code to support \
> it, even if it wasn’t finished or actively used as a TPC benchmark.
SSB is based on a modified TPC-H benchmark. In general, it generates the TPC-H data \
denormalized. I'd think that the SSB could easily be extended to make a separate \
Orders fact (a level above line items) that should zero balance with lineitems but \
allow for virtual cube testing thru conformed dimensions.
> > A scalable database generator is essential
>
> Unfortunately both SSB and TPC-DS use data generators written in C, but we may be \
> able to take on porting that to Java as scope for this semester or a follow on \
> project.
I vaguely recall, but just googled and couldn't find a java based version of TPCH \
from the OSU OSL lab @ sourceforge. But, can't find anything on any search so I \
might be losing some marbles.
LucidDB (and firewater) would LOVE to have a java based version of the SSB generator! \
In particular, we'd love to be able to access the generation via straight java \
because that could allow us to wrap it in Java and load directly from Java into \
LucidDB without generating/persisting intermediate huge files.
If you're genuinely interested in this, contact me and we can discuss if we can also \
add some guidance/help for your team.
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<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; \
-webkit-line-break: after-white-space; "><br><div><div>On Aug 23, 2010, at 12:37 PM, \
<<a href="mailto:jeff.s.wright@thomsonreuters.com">jeff.s.wright@thomsonreuters.com</a>> \
wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span \
class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; \
font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; \
letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; \
text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; \
-webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; \
-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; \
-webkit-text-stroke-width: 0px; "><div style="margin-top: 0in; margin-right: 0in; \
margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, \
sans-serif; "><span style="color: rgb(31, 73, 125); ">Good references, I’ve seen \
those. SSB is a snowflake model with a single fact table. I’d prefer to be able to \
test Virtual cubes. I came down on the side of TPC-DS because it seemed more meaty as \
a data model and there was code to support it, even if it wasn’t finished or actively \
used as a TPC benchmark.</span></div></span></blockquote>SSB is based on a modified \
TPC-H benchmark. In general, it generates the TPC-H data denormalized. \
I'd think that the SSB could easily be extended to make a separate Orders fact \
(a level above line items) that should zero balance with lineitems but allow for \
virtual cube testing thru conformed dimensions.</div><div><br></div><div><blockquote \
type="cite"><span class="Apple-style-span" style="border-collapse: separate; \
font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; \
font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; \
text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: \
0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; \
-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; \
-webkit-text-stroke-width: 0px; "><div style="margin-top: 0in; margin-right: 0in; \
margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, \
sans-serif; "><span style="color: rgb(31, 73, 125); "><o:p></o:p></span></div><div \
style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; \
font-size: 11pt; font-family: Calibri, sans-serif; "><span style="color: rgb(31, 73, \
125); "><o:p> >A scalable database generator is \
essential</o:p></span></div><div style="margin-top: 0in; margin-right: 0in; \
margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, \
sans-serif; "><span style="color: rgb(31, 73, 125); \
"><o:p> </o:p></span></div><div style="margin-top: 0in; margin-right: 0in; \
margin-bottom: 0.0001pt; margin-left: 0in; font-size: 11pt; font-family: Calibri, \
sans-serif; "><span style="color: rgb(31, 73, 125); ">Unfortunately both SSB and \
TPC-DS use data generators written in C, but we may be able to take on porting that \
to Java as scope for this semester or a follow on \
project.</span></div></span></blockquote>I vaguely recall, but just googled and \
couldn't find a java based version of TPCH from the OSU OSL lab @ sourceforge. \
But, can't find anything on any search so I might be losing some \
marbles.</div><div><br></div><div>LucidDB (and firewater) would LOVE to have a java \
based version of the SSB generator! In particular, we'd love to be able to \
access the generation via straight java because that could allow us to wrap it in \
Java and load directly from Java into LucidDB without generating/persisting \
intermediate huge files.</div><div><br></div><div>If you're genuinely interested in \
this, contact me and we can discuss if we can also add some guidance/help for your \
team.</div></body></html>
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